Kaizen #171: FAQs on COQL API

Kaizen #171: FAQs on COQL API

Hello all!!
Welcome back to another post in the Kaizen series!

In this post, we will address some of the most frequently asked questions about Zoho CRM's COQL API from the Zoho CRM Developer Community Forum.




COQL API

Query API lets you query for records based on queries using the CRM Object Query Language(COQL). COQL is based on the SQL query syntax, and supports the SELECT query to fetch records. Using this API, you can query for data across different modules that are linked using lookup fields. 

1. Why did I get a SYNTAX error for the following query?


{
    "select_query":"select External from Contacts where id is not null"
}


Answer: 
The error occurs because the query uses an SQL reserved keyword, "External", as a column name without enclosing it in quotes. When using SQL reserved keywords like "External", you must enclose them in single or double quotes.

The above-query can be written as:

{
    "select_query":"select 'External' from Contacts where id is not null"
}



------------------------------------------------------------------------------------------------------------------------------------

2. Why does the following query throw an error?


{
    "select_query":"select id from Contacts where id is not null and Account_Name is not null and Vendor_Name is not null"
}


Answer: 
When the query involves more than two criteria, ensure that you enclose your criteria properly by grouping them in pairs, such as ((A and B) and C).

The above-query can be written as:

{
    "select_query": "select id from Contacts where ((id is not null and Account_Name is not null) and Vendor_Name is not null)"
}


------------------------------------------------------------------------------------------------------------------------------------

3. How to escape single quotes within single quotes and double quotes within double quotes?

Answer: 
For single quote:

If you want to retrieve a value that contains a single quote, for example, 1' 2 in the Designation field (a single-line field), you need to escape the single quote in the value by adding another single quote.

Example:
1'' 2

Sample Input and Response:



For double quotes:

If you want to retrieve a value which contains double quotes, for example, 1' ' 2 in the Designation field (any single-line field), then you have to escape each double quotes with backslash (\) in the value.



------------------------------------------------------------------------------------------------------------------------------------

4. Why does the following query throw an error?


{
    "select_query":"select What_Id->Leads.Last_Name from Tasks where id is not null"
}


Answer: 
Special characters such as "-",  ">"  "*", and "!" in a query must be enclosed within quotes, either in single or double quotes. 
Your query can be written as:


{
    "select_query":"select 'What_Id->Leads.Last_Name' from Tasks where id is not null"
}



------------------------------------------------------------------------------------------------------------------------------------

5. How can I retrieve records from a subform module using COQL?

Answer: 
To retrieve subform data within a module, specify the respective subform module's API name in your query instead of querying the parent module. For more details, refer to Kaizen #124 on managing Subforms using Zoho CRM APIs.

------------------------------------------------------------------------------------------------------------------------------------

6. How to retrieve Multi Select lookup field data using COQL?

Answer: 
To query Multi-Select Lookup fields (MxN fields), you need to retrieve the data through the corresponding linking module instead of querying them directly from the parent module. For more details, refer to Kaizen #125 on manipulating Multi-Select Lookup fields using Zoho CRM APIs.

------------------------------------------------------------------------------------------------------------------------------------

7. Can I query more than 50,000 records?

Answer: 
Up to V6, you can retrieve up to 10,000 records without changing the criteria by using the LIMIT and OFFSET in your query. When retrieving the initial 10,000 records, make an API call with Created_Time, Modified_Time, or ID in the ORDER BY clause. To fetch more than 10,000 records, apply a condition based on the fields used in the initial ORDER BY clause in the query.
Refer to the Pagination section for more details. 
From V7 onwards, we support retrieving up to 1,00,000 records without changing the criteria by using LIMIT and OFFSET in your query. To fetch more than 1,00,000 records, please refer to the Pagination section for more details.

------------------------------------------------------------------------------------------------------------------------------------

8. Is territory field supported in COQL?

Answer: 
Yes,  you can use the territory field in the COQL from V7. Refer to the Territories section in COQL document for sample.
------------------------------------------------------------------------------------------------------------------------------------

9. Is CVID support provided in COQL?

Answer: 
Yes, from V7, you can use the CVID in your query. Refer to the CVID section in the COQL document for details.
------------------------------------------------------------------------------------------------------------------------------------

10. What are the supported aggregate functions, and why do they not work with values like Avg or avg?

Answer:
The aggregate functions are case-sensitive and only work when specified in all capital letters.  Using values like Avg or avg will result in an error.
The supported aggregate functions are MIN, MAX, AVG, SUM, and COUNT

------------------------------------------------------------------------------------------------------------------------------------

11. Are other SQL-related functions like CONCAT or DATE() supported in COQL?

Answer:
No, COQL in Zoho CRM API Version 7 currently supports only aggregate functions and does not include other SQL-related functions like CONCAT or DATE().
------------------------------------------------------------------------------------------------------------------------------------
12. Is it possible to select more than 50 fields in the SELECT column?

Answer:
Yes, from Zoho CRM API Version 7, the limit has been increased from 50 to 500 fields in the SELECT column.
------------------------------------------------------------------------------------------------------------------------------------

13. Can Multi-Module Lookup inner fields be queried?

Answer:

Yes, you can query fields from the associated module in a Multi-Module Lookup (e.g., Appointments module). 

Use the following format:

select 'What_Id->{associated_module_API_name}.{field_API_name_from_associated_module}'

Example:

{
  "select_query": "select 'What_Id->Leads.Last_Name','What_Id->Accounts.Account_Type' from Events where id is not null"
}



Note:
From Zoho CRM API Version 7, you can also query the "Appointment_For" field.

------------------------------------------------------------------------------------------------------------------------------------

14. Is Display Name available for all types of lookup fields?

Answer:
From V7, the display name is available for Lookup and User Lookup fields when you specify them in the SELECT column, but it is not available for Consent Lookup and Multi-Module Lookup (MML) fields.
Please note, for the Users module, only the "last_name" is shown as the display field for the Users module is last_name.

Example:

{
    "select_query": "select Account_Name, Owner, Data_Processing_Basis_Details from Contacts where Data_Processing_Basis_Details is not null"
}


Response:

{
    "data": [
        {
            "Owner": { //user lookup field
                "name": "Boyle",
                "id": "5725767000000411001"
            },
            "Account_Name": { //lookup field
                "name": "Zoho",
                "id": "5725767000003464060"
            },
            "Data_Processing_Basis_Details": { //consent lookup field
                "id": "5725767000005083039"
            },
            "id": "5725767000005091053"
        }
    ],
    "info": {
        "count": 1,
        "more_records": false
    }
}


------------------------------------------------------------------------------------------------------------------------------------

15. Is it possible to get a Full Name based on User Preference?

Answer:
The Full Name field is supported in the Leads, Contacts, and Users modules.

Leads and Contacts modules:
  • Below V7: You must query the first_name and last_name fields separately and concatenate them to form the Full Name.
  • From V7: You can directly query the full_name field in the SELECT column, and it will return data based on the User Preference.
Users module:
In all versions, the full_name field is not directly supported. You need to query the first_name and last_name fields separately and concatenate them to construct the Full Name.

------------------------------------------------------------------------------------------------------------------------------------

16. Is it possible to use Profile Image and Rollup Summary fields in criteria?

Answer:
From V7, you can use Profile Image and Rollup Summary fields in criteria.

------------------------------------------------------------------------------------------------------------------------------------

17. Which fields are restricted in all clauses?

Answer:
The following fields are restricted from being included in all columns:
  • Multi-select lookup fields: These cannot be queried directly from the parent module. Instead, query them from their respective linking modules.
  • Line items: Pricing_Details and Product_Details
    • Pricing_Details: This field cannot be queried as it is not a subform but a separate section.
    • Product_Details: This is a subform. You cannot query data from the parent module. Instead, query it directly from the respective subform module.
  • Participants in the Events module.
  • File/Image upload fields
  • Availability Information fields in the Services module
    • Choose Date(s)
    • Choose Day(s)
Check the following image for reference.



------------------------------------------------------------------------------------------------------------------------------------

18. Which fields are restricted only in criteria?

Answer:
The following fields have restrictions when used in criteria:
  • Multiline fields: Cannot be used in criteria.
  • Encrypted numeric fields: Support limited comparators (is null, is not null, =, != ).
  • Encrypted non-numeric fields: Support only is null and is not null comparators.
------------------------------------------------------------------------------------------------------------------------------------

19. Which fields are restricted only in the Group By clause?

Answer:
Encrypted fields are restricted from being used in the Group By clause.

------------------------------------------------------------------------------------------------------------------------------------

20. Which fields are restricted only in the ORDER BY clause?

Answer:
Encrypted fields are restricted from being used in the ORDER BY clause.

------------------------------------------------------------------------------------------------------------------------------------

21. Is External ID supported in COQL?

Answer:
Yes, External ID has been supported from Zoho CRM API's Version 4. Please note that operators such as "is null" and "is not null" are not supported in the criteria when using External ID.

Supported operators are "=", "!=", "in" and "not in".

------------------------------------------------------------------------------------------------------------------------------------

22. How to resolve a 408 error (Request Timeout)?

Answer:
If your query takes more than a second to parse, a request timeout error will occur.

To avoid this, ensure the query is not overly complex and that all parentheses are properly balanced. Simplifying the query or fixing any mismatched parentheses can help resolve the issue.

------------------------------------------------------------------------------------------------------------------------------------

23. Is it necessary to query the records based only on the User Time Zone?

Answer: 
No, users can query records based on any time zone. However, the response will always be returned in the time zone of the user who made the query.

------------------------------------------------------------------------------------------------------------------------------------

24. Which fields are restricted when using aggregate functions, for example, SUM(field_API_name)?

Answer: 
Encrypted fields are restricted and cannot be used in the aggregate functions like SUM, AVG, MIX, or MAX.

------------------------------------------------------------------------------------------------------------------------------------

25. Where can we use Alias?

Answer:
Alias can be used in the SELECT clause and in the ORDER BY clause. You can assign an alias in the SELECT clause, and the assigned alias can be referenced in the ORDER BY clause. But you cannot assign an alias directly in the ORDER BY clause. 

Note: Alias cannot be used in the other clauses, such as WHERE and GROUP BY.

------------------------------------------------------------------------------------------------------------------------------------
Info
More enhancements in the COQL API are now live in Zoho CRM API Version 7. Check out the V7 Changelog for detailed information on these updates.

We trust that this post meets your needs and is helpful.
Let us know your thoughts in the comment section or reach out to us at support@zohocrm.com

    Access your files securely from anywhere









                          Zoho Developer Community




                                                • Desk Community Learning Series


                                                • Digest


                                                • Functions


                                                • Meetups


                                                • Kbase


                                                • Resources


                                                • Glossary


                                                • Desk Marketplace


                                                • MVP Corner


                                                • Word of the Day


                                                • Ask the Experts





                                                          Manage your brands on social media



                                                                Zoho TeamInbox Resources



                                                                    Zoho CRM Plus Resources

                                                                      Zoho Books Resources


                                                                        Zoho Subscriptions Resources

                                                                          Zoho Projects Resources


                                                                            Zoho Sprints Resources


                                                                              Qntrl Resources


                                                                                Zoho Creator Resources



                                                                                    Zoho CRM Resources

                                                                                    • CRM Community Learning Series

                                                                                      CRM Community Learning Series


                                                                                    • Kaizen

                                                                                      Kaizen

                                                                                    • Functions

                                                                                      Functions

                                                                                    • Meetups

                                                                                      Meetups

                                                                                    • Kbase

                                                                                      Kbase

                                                                                    • Resources

                                                                                      Resources

                                                                                    • Digest

                                                                                      Digest

                                                                                    • CRM Marketplace

                                                                                      CRM Marketplace

                                                                                    • MVP Corner

                                                                                      MVP Corner







                                                                                        Design. Discuss. Deliver.

                                                                                        Create visually engaging stories with Zoho Show.

                                                                                        Get Started Now


                                                                                          Zoho Show Resources

                                                                                            Zoho Writer

                                                                                            Get Started. Write Away!

                                                                                            Writer is a powerful online word processor, designed for collaborative work.

                                                                                              Zoho CRM コンテンツ






                                                                                                Nederlandse Hulpbronnen


                                                                                                    ご検討中の方




                                                                                                          • Recent Topics

                                                                                                          • How do I move a section or element from one page to another in the NEW Zoho Sites UI

                                                                                                            I have a section on my home page with numerous elements within it and I'd like to move the entire section to a different page on my site so I don't have to recreate it from scratch.  Is there a way for me to do that easily? I could use a quick answer on this please.
                                                                                                          • Zoho Projects app update: Global Web Tabs support

                                                                                                            Hello everyone! In the latest version(v3.10.10) of the Zoho Projects app update, we have brought in support for Global Web Tabs. You can now access the web tabs across all the projects from the Home module of the app. Please update the app to the latest
                                                                                                          • Export as MP4 or GIF

                                                                                                            Hi, Just wondering if there's a way to export/convert a presentation to an MP4 video file or even a GIF. One use case would be to use the animation functionality to create social media graphics/charts/gifs/videos. Thanks for a great tool... Rgds Jon
                                                                                                          • Page Layout- Horizontal Rule

                                                                                                            When editing the layout of, for instance, the Potentials page, is there a way to insert a horizontal rule or white space in between fields?  I'd like to keep a group of fields in the same Section, but would like to create some seperation in order to further group together certain fields within the Section.  If this is not possible, does anybody have any other suggestions on how to create this same effect?   Thank you!
                                                                                                          • Zoho Books will discontinue support for older browser versions soon

                                                                                                            Hello users, Starting from May 15, 2024, Zoho Books will no longer support the following browser versions: Browsers Version Restrictions Firefox Browser Versions older than 100 Google Chrome Versions older than 100 Microsoft Edge Versions older than 100
                                                                                                          • Zoho Projects - Q3 Updates | 2025

                                                                                                            Hello Users, The final quarter of the year 2025 has begun, and we at Zoho Projects are all set with a plan. New targets to achieve and new milestones to reach, influenced by the lasting imprint of the past quarter. 2025's Q3 saw some new features and
                                                                                                          • Zoho Sheet - Printing - Page Breaks and Printing Customization

                                                                                                            I think the title is descriptive enough in that I cannot find help documentation on a simple task of adding in page brakes for separating pages on print. Thanks
                                                                                                          • Issue with Trident exe file

                                                                                                            Hello Team, Exe Setup file It's showing harmful for user pc please check and do needful. this message for developer team. Thanks Bhargav Purohit
                                                                                                          • Different languages for users

                                                                                                            Hello, Do you plan to enable individual users to select their languages for interface? Currently language can be changed for everyone - it looks like a settings for a whole portal, which is not good when you are working internationally. Best regards,
                                                                                                          • Transaction Locking with the dynamic date

                                                                                                            Is it possible to dynamically update dates on transaction locking. We want to lock transaction x days from today
                                                                                                          • Unable to change sales_order status form "not_invoiced" to "invoiced"

                                                                                                            I am automating process of creating of invoice from sales_orders by consolidated sales_orders of each customer and creating a single invoice per customer every month. I am doing this in workflow schedule custom function where i create invoice by getting
                                                                                                          • Apply Vendor Credits Automatically

                                                                                                            We are bulk importing Vendor credits in Zoho Books!!! Is there a way to apply vendor credits automatically to the first UNPAID bill of the Vendor?
                                                                                                          • Apply Vendor Credit Automatically

                                                                                                            Hello!!! Is there a way where in we can apply vendor credits automatically on the FIRST OUTSTANDING BILL of the vendor?? We have lots of VENDOR CREDITS ISSUES mostly!!! Applying it manually is a pain for us. Would be great if we have a way to apply the
                                                                                                          • Need Easy Way to Update Item Prices in Bulk

                                                                                                            Hello Everyone, In Zoho Books, updating selling prices is taking too much time. Right now we have to either edit items one by one or do Excel export/import. It will be very useful if Zoho gives a simple option to: Select multiple items and update prices
                                                                                                          • Creator problem: Edit form View not displaying whole form

                                                                                                            I'm having problems with the form in my database. The edit view is not showing the whole form: This is how it looks in the normal view: As you can see, there is a whole section in the bottom right of the form which is not displaying in the Edit View. This means that I can't change or delete any of these fields... Anybody had a similar problem or know a solution? Any help would be appreciated.   Cheers,
                                                                                                          • Vendor Master Enhancements for Faster Purchase Entry

                                                                                                            I’d like to suggest a few features that will improve accuracy and speed during purchase voucher entry: Automated Item Tax Preference in Vendor Master Add an option to define item tax preference in the vendor master. Once set, this preference should automatically
                                                                                                          • Quick Item Search & Auto-suggestion for Invoices

                                                                                                            Hi Team, I am facing an issue while creating invoices in Zoho Books. Currently, I have to type the full item name in the correct sequence and spelling for it to appear. For example, my item name is: "Distemper Acri Silk Special White 10kg" If I type something
                                                                                                          • Function #53: Transaction Level Profitability for Invoices

                                                                                                            Hello everyone, and welcome back to our series! We have previously provided custom functions for calculating the profitability of a quote and a sales order. There may be instances where the invoice may differ from its corresponding quote or sales order.
                                                                                                          • Integrating Chatbot with Zoho Creator Application

                                                                                                            Is it possible to integrate a chatbot with a Zoho Creator application?
                                                                                                          • Average Costing / Weighted Average Costing

                                                                                                            Hello fellow maadirs. I understand Zoho Books uses FIFO method of dealing with inventory costing, but do you guys have any plans to introduce average costing? We indians need average costing. It's part of our culture. Please. I beg thee. Thanks.
                                                                                                          • 'Add Tax To Amount' not reflected in Invoice

                                                                                                            Hi Zoho Support, I'm experiencing an issue with tax calculation display in my invoice template. Despite having "Add tax to amount" box checked in the template settings, the Amount column is not showing the tax-inclusive total for line items. Current behaviour:
                                                                                                          • "Subject" or "Narration"in Customer Statement

                                                                                                            Dear Sir, While creating invoice, we are giving in "Subject" the purpose of invoice. For Example - "GST for the month of Aug 23", IT return FY 22-23", "Consultancy", Internal Audit for May 23". But this subject is not coming in Customer Statement. Only
                                                                                                          • A real WYSIWYG field instead of the limited rich text

                                                                                                            Hi to everyone A "real" WYSIWYG or HTML field that outputs good HTML code when accessed through the API would be excellent. I tried to use the rich text field, but the styling options are limited. For example, there are no heading tags (h1 to h6), and
                                                                                                          • Delete my store of Zoho commerce

                                                                                                            Hi Team, I want to delete my stores of commerce. Please help me asap. Looking for the positive response soon. Thanks Shubham Chauhan Mob: +91-9761872650
                                                                                                          • Delete Inactive Zoho Accounts - Access Cleanup_User Id: 60001640923

                                                                                                            As part of our Zoho access hygiene, we’ve reviewed and deactivated several inactive user accounts. These accounts have not been used in the past year and are no longer tied to active operations. All access rights have been revoked, and records retained
                                                                                                          • No feedback from Zoho Books regarding Yodlee feeds for Investec

                                                                                                            I reported on 6 Feb 2025 that the Bank Feeds for Investec bank via Yodlee are not working. To date there has been no resolution. You are charging us for a suite of products where the functionality does not work. Please advise how you will refund me for
                                                                                                          • Inappropriate Removal of Features

                                                                                                            It's the first with any software where I am experiencing that an existing customer has some of his exiting features removed. Moreover, new Zoho One users are paying less than us. Is this going to be Zoho's "normal behaviour". If so, it is going to be
                                                                                                          • Filtering report embeded in page

                                                                                                            Right now we are using a page variable to filter a report on a page. However, it being a page variable makes it reset if you go to another report/form, we want the filter to be kept the same. I tried using an application variable according to zoho you
                                                                                                          • Export Invoices to XML file

                                                                                                            Namaste! ZOHO suite of Apps is awesome and we as Partner, would like to use and implement the app´s from the Financial suite like ZOHO Invoice, but, in Portugal, we can only use certified Invoice Software and for this reason, we need to develop/customize on top of ZOHO Invoice to create an XML file with specific information and after this, go to the government and certified the software. As soon as we have for example, ZOHO CRM integrated with ZOHO Invoice up and running, our business opportunities
                                                                                                          • Zia summarizes your IM bot chats in real time

                                                                                                            Hello everyone! Let's say you’re an agent taking over a chat where a customer was booking a flight through a bot on WhatsApp. They've already shared key details, like their destination, travel date, and number of passengers. You need to understand the
                                                                                                          • Megamenu

                                                                                                            Finally! Megamenu's are now available in Zoho-Sites, after waiting for it and requesting it for years! BUT ... why am I asked to upgrade in order to use a megamenu? First: Zoho promised to always provide premium versions and options for all included Zoho-applications
                                                                                                          • Cancel and refund

                                                                                                            Hi, Yesterday I paid for the Zoho email subscription. Within a few minutes, I realized that the subscription counts one email ID as one user. To make another email ID for the same domain name, I'd have to pay for another user. I emailed right away to
                                                                                                          • One Contact with Multiple Accounts with Portal enabled

                                                                                                            I have a contact that manages different accounts, so he needs to see the invoices of all the companies he manage in Portal but I found it not possible.. any idea? I tried to set different customers with the same email contact with the portal enabled and
                                                                                                          • Kaizen# 209 - Answering Your Questions | All About Client Script

                                                                                                            Hello everyone! Welcome back to another exciting Kaizen post! Thanks for all your feedback and questions. In this post, let's see the answers to your questions related to Client Script. We took the time to discuss with our development team, carefully
                                                                                                          • To Do: shareable task links without login

                                                                                                            Hi! I’m using Zoho Mail and ToDo in my daily work, and I’ve run into one limitation that’s a real blocker for me. Right now, to share tasks with managers or directors, they need to have a Zoho account and be added to a group. In practice, many of them
                                                                                                          • Ability to turn off "Would you like this amount to be reflected in the Payment field?" message

                                                                                                            Team, Is there any way to turn off the message" Would you like this amount to be reflected in the Payment field?" when I make a payment? This is so annoying. This happens EVERY TIME I put an amount in the Payment Made field.
                                                                                                          • Unlock agreement intelligence with Zoho Sign's latest AI updates

                                                                                                            Hello! If you've been struggling with long, complex agreements and spending way too much time on them, here's exactly what you'll want to hear: Zoho Sign now integrates with OpenAI's ChatGPT to make agreement management smarter and simpler. Acting like
                                                                                                          • Currency abbreviations

                                                                                                            Hello, Im stuck, and need help. I need the currency fields for example, opportunity value, or total revenue, to be abbreviated, lets say for 1,000 - 1K, 1,000,000 - 1M, and so on, how should I do this?
                                                                                                          • Embed Sign Document

                                                                                                            Has anyone tried embedding a document in a webpage? I'm building a webpage (using PowerPage) and I'm trying to embed it using an iframe then I got this error: Refused to display 'https://sign.zoho.com/' in a frame because it set 'X-Frame-Options' to
                                                                                                          • Zeptomail API error 500 internal server error

                                                                                                            Hi Everyone, getting this eror continuously! Can anyone please guide around the same! Zeptomail API error 500 internal server error Best Regards
                                                                                                          • Next Page