Accessing Subform using Zoho CRM APIs

Accessing Subform using Zoho CRM APIs

Hello everyone!

Welcome back to another post in our Kaizen series
In this post, we will discuss how to manipulate the Subform data using Zoho CRM APIs.

Subforms

A Subform is a data section embedded in the primary form to collect details related to the parent record. It helps in maintaining multiple records under a single parent record. 

Using subform, you can create a parent-child relationship between modules, where the parent module represents the primary data and the child module contains the related data. 

Data Model Representation
The above diagram shows the data model representation when you create a subform in a module.
Consider adding a subform field named Project Details in the Leads module (parent module). Zoho CRM will automatically create a separate module for the subform field with the specified subform field name - Project Details. Each record within the subform module can have multiple fields, in addition to the system-defined Parent_Id lookup field, establishing a connection between the parent (Leads module) and child (subform module) modules. Through this linking process, one can easily identify which subform record corresponds to which specific lead record.

Use Case

Consider Zylker Consulting organization using Zoho CRM to maintain their leads and their projects. Zylker uses the Project Details subform in the Leads module to collect project-specific information collected from their Leads.
The Project Details subform includes fields such as Project Title,Type, Budget, and Status, in addition to the Parent_Id lookup field.
Now, the Zylker's sales team needs to retrieve all the details of the projects from the Leads module for further project analysis, expected budgets, and status. Let's see how to manipulate these data in CRM using Zoho CRM APIs.

The APIs used in this post

API
Methods
Subforms API
GET, POST, UPDATE
Records API
POST, UPDATE, DELETE
Search API
GET
COQL API
POST
Bulk Read API
POST, GET

How to retrieve subform records using the Zoho CRM APIs?

To retrieve subform records from the subform module, specify the subform module's API name to access their records or fields.

Step - 1
To know the API names of the subform fields in a module, make a GET - Fields Metadata API call. Among all the Leads' fields, subform field can be identified by the json key data_type with the value subform. Corresponding subform module can be found from the json associated_module. Below is the API call & response for such a subform field.

Request URL :
{api-domain}/crm/v6/settings/fields/{subform_field_id}?module=Leads

Request Method: GET

Sample Response:


Step - 2
Using the api_name of the subform module, make a GET Fields metadata API call to get the list of fields (along with their api_name) in the subform. One of the fields of the subform module will be Parent_Id with the data_type as lookup, pointing to the parent module (here it is Leads).

Request URL 
Request Method: GET
Sample Response:
Now you know how to get the API name of the subform and its corresponding fields.

Step - 3
Sample Request and Response to retrieve subform records
The below request will retrieve all the subform records in the Leads module. The linking of subform record to the Lead's module will be available in the Parent_Id field, which is highlighted. The id key inside the Parent_Id json object is the id of the Leads records.
 


How to add data to the subforms?

To add records to the subform, you need the API name of the subform and its corresponding field API names.
Request URL:
Request Method:  POST
Sample Input
{
    "data": [
        {
            "Last_Name": "Patricia",
            "Company": "Info Technology",
            "Email" : "patricia@mail.com",
            "Project_Details": //API name of the subform
     [ 
                {
                    "Project_Name": "Mobile App Development for Productivity",
                    "Project_Type": "Mobile App Development",
                    "Expected_Budget": 50000,
                    "Status": "Negotiation in Process"
                }, //API names of the subform fields
                {
                    "Project_Name": "Big Data Infrastructure Implementation",
                    "Project_Type": "Infrastructure Upgrade",
                    "Expected_Budget": 30000,
                    "Status": "Proposal Submitted"
                },
                {
                    "Project_Name": "Big Data Infrastructure Implementation",
                    "Project_Type": "Infrastructure Upgrade",
                    "Expected_Budget": 30000,
                    "Status": "Proposal Submitted"
                }
            ] 
        }
    ]
}

The above highlighted syntax is used for adding data to the subform records. 

Sample Response:

Kaizen #33 - Subforms API explains in detail how to Fetch, Update, and Delete the subform data with sample requests, inputs, and responses.

Retrieve Subform Data via Search API and COQL API

There may be situations where you need to fetch records based upon certain conditions.  

Criteria :
The sales team wants to retrieve the subform records whose budget is greater than or equal to $40000. In this case, we will use Zoho CRM's Search API and COQL API. Let's see how to achieve this. 

Search API

To retrieve the records that match your search criteria, retrieve subform data using its corresponding module API name.  Note that using Search API, you can fetch data quickly from a single module.

Request URL:

Request Method: GET
Sample Response :
The above response shows all records that meet the specified criteria.

How to retrieve subform records from a particular parent record?

To retrieve subforms records in a particular lead record that meet the above criteria, follow the below sample request.

Sample Request URL:

Sample Response:



Retrieving Subforms Data via COQL API

We know that the subform is maintained in a separate module. So, retrieve subform data by querying the subform module's API name and it's parent module via the Parent_Id lookup field. 

Request URL:
Request Method : POST

Sample Input:
{
 "select_query" : "select Expected_Budget from Project_Details where ((Expected_Budget >=40000) and (Parent_Id = 5725767000002105043))"
}

Sample Response:
Using a Parent_Id (lookup field pointing to Leads module) in the COQL criteria automatically adds a left join to the child module (Project_Details). With that join, criteria can be applied to the fields of the parent module also. Below example illustrates that we want to fetch the Expected_Budget field of the Project_Details module where the Expected_Budget is greater than or equal to 40000 for the corresponding Leads with Annual Revenue greater than 1000000. 

{
 "select_query" : "select Expected_Budget from Project_Details where ((Expected_Budget >=40000) and (Parent_Id.Annual_Revenue > 100000 ))"
}

From the SQL perspective, above COQL can be interpreted as

select pd.Expected_Budget from Project_Details as pd left join Leads as l on pd.Parent_Id=l.id where pd.Expected_Budget>=40000 and l.Annual_Revenue > 1000000

For more information on COQL API, refer to the Kaizen posts  COQL Part -1 and COQL Part - 2

Bulk Read API

Bulk Read API allows you to fetch a large set of data i.e., you can fetch a maximum of 200,000 records in a single API call. 
To export subform records in the Leads module in CSV file format, use the subform's API name.

Request URL:
Request Method: POST

Sample input to export subform records:
{
    "callback": {
        "method": "post"
    },
    "query": {
        "module": {
            "api_name": "Project_Details" //API name of the Subform module
        },
        "file_type": "csv"
    }
}


Export subform records that meet the specified criteria

To export subform records based on the given criteria above (similar to the criteria for Search and COQL APIs).

Sample Input:
{
        . . .
     "query": {
        "module": {
            "api_name": "Project_Details"
        },
        "fields": [
            "Project_Name",
            "Project_Type",
            "Expected_Budget",
            "Status"
        ],
        "criteria": {
            "field": {
                "api_name": "Expected_Budget"
            },
            "comparator": "greater_equal",
            "value": "40000" //Retrieving subform records with an expected budget greater than or equal to $40,000
        }
    }
}


Export subform records that meet the specified criteria for the particular parent record

To export the subform records of a particular parent record in the Leads module. Check the below sample request.

Sample Input:

{
       . . .
        "query": {
        "module": {
            "api_name": "Project_Details"
        },
        "fields": [
            "Project_Name",
            "Project_Type",
            "Expected_Budget",
            "Status"
        ],
        "criteria": {
            "group": [
                {
                    "field": {
                        "api_name": "Expected_Budget"
                    },
                    "comparator": "greater_than",
                    "value": "39999"
                },
                {
                    "field": {
                        "api_name": "Parent_Id"
                    },
                    "comparator": "equal",
                    "value": "5725767000002105043"
                }
            ],
            "group_operator": "AND"
        }
    }
}


As the API is an asynchronous API, the response will not be available instantly; the bulk read job is scheduled, and the status can be checked. Once the job is completed, it'll be notified in the callback URL. The records are available in a downloadable CSV file or ICS file (for events). You can export subform records in a module using the subform module API name. See Kaizen #12 Bulk Read API to know how to view the status of the scheduled job and download the file, along with more sample requests and responses.

Frequently Asked Questions

Q.  Is the API name of the subform case-sensitive? Also, how can I view the API name of a subform field in the web UI?
Yes, the API name of a subform is case-sensitive. To know the API name of a subform module (e.g. Project Details) Please go to Setup -> Developer Hub -> APIs -> CRM API -> API names -> Click on the parent module where the subform was created (e.g. Leads) and scroll down there you can view the subform field's API name.

Q. I changed the order of subform records and made a GET - Records API call. The system listed the records in the same order as displayed in the UI, rather than the order of their creation. Is this the system design? 
When you make a GET - Records API call for a module, it lists the subform records ordered in the UI. Note that you can re-order the subform records. So, when you retrieve those records via the API, they will be listed in the same order as they are arranged in the UI.

Q. Can we change a subform field's API name via API?
You can change the API name of the subform field only through the UI. Go to Setup -> Developer Hub -> APIs -> CRM API -> API names -> Click on the parent module where the subform was created (e.g. Leads) and go to the Field Label section. There you can view the subform field name and edit the API by clicking on the Edit option.

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

Stay tuned for more insights in our upcoming Kaizen posts!
------------------------------------------------------------------------------------------------------------------------------
Previous Kaizen Post : Kaizen #123 Data Synchronization from a third party application
-------------------------------------------------------------------------------------------------------------------------------



Cheers!

Additional Reading:

Kaizen Posts:





    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



                                        Zoho Marketing Automation


                                                Manage your brands on social media



                                                      Zoho TeamInbox Resources

                                                        Zoho DataPrep 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 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

                                                                                                • Syncing with Google calendar, Tasks and Events

                                                                                                  Is it possible to sync Zoho CRM calendar, task and events with Google Calendar's tasks and events. With the increasing adoption by many major tool suppliers to sync seamlessly with Google's offerings (for instance I use the excellent Any.do task planning
                                                                                                • Merge invoices

                                                                                                  This has come up three times in a month of me using the system. a client whom i do work for on a regular bases asked me to invoice separate jobs on a single invoice. I would then go and cancel the old invoices and make a new one. It would be great if i could just select the invoices and click merge to create a single invoice.
                                                                                                • Pipeline stages for product-led growth (PLG) subscription services

                                                                                                  (Estagios de pipeline com foco em serviço digital por assinatura (PLG)) Dear colleagues, I am writing to request assistance with a significant challenge I am currently facing. I manage a digital service that operates on a subscription-based model. I am
                                                                                                • Multiselect lookup in subform

                                                                                                  It would be SO SO useful if subforms could support a multiselect look up field! Is this in the works??
                                                                                                • Zoho CRM for Email ( Microsoft add on app) Feb 25, 2025

                                                                                                  We are currently experiencing issues with Zoho CRM for Outlook despite updating the Microsoft add on app and Zoho software to the latest versions. When working in Outlook on our Macs and PC's and 365 on the web, when we try to link an email in Outlook
                                                                                                • Sheet View for Reports

                                                                                                  We often need to filter our contacts in a way that is too complex for Custom Filters (which now allows filtering by Related Modules - amazing! - but doesn't allow for an *OR* relationship between the multiple filters) or Custom View (which does not yet
                                                                                                • Feature enhancement: Highlight rows based on a cell value

                                                                                                  Hello Sheet users, We're excited to announce a new feature enhacement, shaped directly by your valuable feedback! As you might know, conditional formatting is a great tool for anyone dealing with large data sets. Previously, if you’ve ever wanted to draw
                                                                                                • Urgent: Unable to Receive OTP Email for Portal User Registration in Zoho Creator

                                                                                                  I paid to enable the Portal User feature on 2/25, and followed the official instructions (Youtube video: Customer Portals | Zoho Creator) to set up the Portal User using my Gmail account. However, I am not receiving the OTP email and am unable to successfully
                                                                                                • Zoho not receiving verification email.

                                                                                                  I developed a website registration page and need to send verification email. I am using sendinblue for sending out the verification emails. Somehow, the mail is not being received by the Zoho users. Gmail, outlook, yahoo domains works fine but when I try to send the mail to my Zoho account I am not able to receive the mail. Can you please let me know what might be the issue?
                                                                                                • Restore deleted spreadsheet

                                                                                                  Hi all, I can not find my spreadsheet. It seems that my spreadsheet is deleted. Please, restore the spreadsheet. Thanks in advance
                                                                                                • Lookup fields can't be used for anything important

                                                                                                  Hi It seems the lookup fields are mostly.... informative, you can at most link stuff between modules... You can't use lookup fields in blueprints, you can't use them in layout rules or anything... It that correct?
                                                                                                • Function to check frequency of customer ordering patterns

                                                                                                  Hi, I'm no coder, so I thought I could make use of Chat GPT to generate some Deluge script to create a function that would check order frequency of our customers so that I could send an email if they go beyond their usual order pattern. Chat GPT and Claude
                                                                                                • Better Control over Team Ordering and Display

                                                                                                  Two feature requests for Zoho Desk team drop downs: The ability to change the order of teams, currently it's not in alphabetical order, which is confusing. I'm thinking a manual ordering via number or drag and drop, alphabetical order, and creation order
                                                                                                • Clear specific tag or tags from all leads

                                                                                                  I'm looking for a way to clear a specific tag from all Leads. I have a function when a tag is added to a lead they are added to a campaign and their status is set to "invited". I need to find a method to remove the tag. If I try to delete the tag to clear
                                                                                                • Cisco Webex Calling Intergration

                                                                                                  Hi Guys, Our organisation is looking at a move from Salesforce to Zoho. We have found there is no support for Cisco Webex Calling however? Is there a way to enable this or are there any apps which can provide this? Thanks!
                                                                                                • Has Anyone Else Built a State Machine into a Function?

                                                                                                  I'm in the process of building a state machine for lead lifecycle management within Zoho CRM, and I'm curious if anyone else has tried integrating a state machine into their Deluge functions, especially considering Zoho’s 12-function cap. I’ve managed
                                                                                                • Is there a way for a custom function to trigger a custom made email alert?

                                                                                                  Hi Zoho Team, We have currently maxed out our 30 workflows in one of our department and we are trying to find ways to make it more efficient. We usually use our workflows to send automated email notifications per team leader for approval of tickets. Is
                                                                                                • Unified WhatsApp Number Management in Zoho Desk and SalesIQ

                                                                                                  Dear Zoho Desk Support Team, We are currently utilizing both Zoho Desk and Zoho SalesIQ for our customer support operations. While both platforms offer WhatsApp integration, we are facing challenges due to the requirement of separate WhatsApp numbers
                                                                                                • Multi User Lookup field on the Zoho CRM iOS app.

                                                                                                  Hello all!   Hope you are all safe and sound.   We have now brought in support for the Multi User Lookup field on the Zoho CRM mobile app. Below are the enhancements that are supported in this update:   * Multi User Lookup field can be added through the
                                                                                                • Help with Deluge Script in Zoho SalesIQ (Input Variables Always Null)

                                                                                                  Hi everyone, I’m working on a Deluge script for Zoho SalesIQ, specifically for a block in Zobot. The script is supposed to: Check the visitor’s name when they start a chat. If the name is empty, return false; if a name is present, return true. However,
                                                                                                • Item/service subtotal

                                                                                                  Just discovered & really pleased that we can drag to re-order the line items in Sales orders & Invoices, a very nice feature which doesn't seem to be documented? It would be nice to be able to insert a subtotal as a line item to complete this great feature
                                                                                                • Hide/Show Certain Fields When Creating/Editing Invoices, Estimates, Etc.

                                                                                                  Hello there, I would like the ability to hide or show certain fields for different employees/roles in my company when they are creating or editing invoices, estimates, etc.. Most of the time, we don't use half of the fields shown on the create/edit invoice
                                                                                                • Is there a way to make an account inactive in ZoHo Desk

                                                                                                  We have a few Clients "Accounts" that we no longer do business with. It would be beneficial for them to not show up in lists. However, we want to go back and view tickets, time, etc.
                                                                                                • Any way to Associate a Recurring Invoice with Deal/Potential in Zoho CRM

                                                                                                  When we create an Invoice in Zoho Books, we have the option to associate that invoice with a Potential/Deal that is tied to that same customer. Can we do the same thing with Recurring Invoices? When creating a Recurring Invoice, I want to be able to Associate
                                                                                                • SSO/SAML

                                                                                                  Question - how are you guys handling SSO for Desk?  It seems the only options lead back to ADFS which is a dying technology, stupidly complicated to set up and configure (I mean, you can put that on your resume) and seems like overkill for SSO when AAD does it so much better and effortlessly.  We want to have our clients have SSO to log into our support portal and we want our Agents to have SSO as well. I shouldn't have to expose our server, turn on ADFS, configure it, install multiple clients (Sync
                                                                                                • Are downloadable product available in Zoho Commerce

                                                                                                  Hi all. We're considering switching to Zoho Commerce for our shop, but we sell software and remote services. Is there a features for downloadable products? I can't find any information about this. Thank you very much Alice
                                                                                                • Ask the Experts 17: Elevate Customer Communication With Multichannel & Instant Messaging

                                                                                                  Hello Everyone, Get ready for the opportunity to interact with Zoho Desk specialists! This month, we’re diving into Multichannel Operations, helping you manage customer interactions across various platforms seamlessly. Why Join? Customers reach out through
                                                                                                • ZOHO DESK

                                                                                                  I use Outlook Exchange to receive emails and want to forward them to Zoho Desk for better management. Additionally, I want to reply to emails in Zoho Desk and have them sent to customers via Outlook Exchange, but I don’t know how to configure it.
                                                                                                • Automating Custom Web Link Messages to Customers via Instant Messaging in Zoho Desk

                                                                                                  Hello, I am looking for assistance with Zoho Desk's Instant Messaging feature. Is there a way to automate the sending of a custom web link to customers every day at 6:30 PM? Any guidance or suggestions on how to achieve this would be greatly appreciated.
                                                                                                • Exciting Update: Multi WhatsApp Business Account (WABA) Support Now Available in SalesIQ!

                                                                                                  We’re pleased to share an important update that will enhance the way you manage your WhatsApp Business accounts (WABAs) within SalesIQ. With the launch of Multi WABA support, you can now connect and manage multiple brands more effectively, each under
                                                                                                • An error occurred while uploading the attachment.

                                                                                                  From the image below, attaching files is not possible via the website but is supported through the Mobile App.
                                                                                                • One time offer in Zoho Campaigns

                                                                                                  Hello! I have an idea to improve my sales. I would like to make a "one time offer" in Zoho Campaigns with a clock that will count down the bid validity period.  Is it possible? Regards.
                                                                                                • How to Initiate WhatsApp Message on SalesIQ?

                                                                                                  I've just activated a Business WhatsApp phone number through SalesIQ because of its touted omnichannel chat approach. Sounds exciting. I understand that when a customer sends me a WA message, I can reply to it on SalesIQ and keep the chat going, perfect.
                                                                                                • Multiple self client instances

                                                                                                  there a couple of details that deserve clarification / improvement in Zoho's OAuth 2: 1. for building true server apps - cloud to cloud REST - one has to choose Self Client when creating a new instance in API Console; Server-based Appplications is slightly
                                                                                                • Workdrive Oauth2 Token Isn't Refreshing

                                                                                                  I have set up oauth for a bunch of zoho apis and have never had a problem with oauth. With workdrive i am using the exact same template i usually use for the other zoho apps and it is not working. All requests will work for the first hour then stops so
                                                                                                • Zoho Desk - Delete an email conversation

                                                                                                  When using Zoho support desk I see an option to delete and edit conversations that are comments, BUT if the conversation was automatically added as a conversation from an email, then the option to delete it seems not to be available. Is there a way to
                                                                                                • Organizational Emails Send through Email Relay Server

                                                                                                  Hello, It would be great if the the Organizational Emails could send through the Email Relay Server as well. I often need to send email as someone else and since we use the GMail API option I have to use the organizational emails to do this.  We use Postmark for our Email Relay Server to increase deliver-ability which is something that we have had issues with when sending everything through Zohos servers. Also with postmark there is no need for each organizational email to have its own credentials
                                                                                                • Emoji support in workdrive

                                                                                                  Hello, We are using emojis in our filenames and folder to help visually find relevant data. Currently Workdrive is stripping out emojis and the rest of the filename (along with the suffix), making the file unreadable when they are synchronized with desktop.
                                                                                                • What is a 'user' in Zoho Surveys, and can I have multiple Offline Kiosks running?

                                                                                                  Is a 'user' the amount of people that can make and edit surveys on the website? I basically just want to know if I am able to have multiple Offline Kiosks running on multiple devices at the same time. Either on the Basic or Plus plan which both have 1
                                                                                                • Fundation / Non profit : Could you help ?

                                                                                                  Hi, We're about to handle a Medical research fundation, non profitable structure, what kind of prices could we hope from you ? Could you help us ? We would need Survey, automated campaign and ZIA Thanks in advance
                                                                                                • Next Page