Kaizen #165 : How to call Zoho CRM APIs using Client Script

Kaizen #165 : How to call Zoho CRM APIs using Client Script



Welcome back to another exciting Client Script post!
In this post, we will discuss one of the most frequently asked questions: How do you call Zoho CRM APIs from Client Scripts?

In this kaizen post,


1. Ways to make calls to Zoho CRM APIs using Client Script
      1.A  Client Script ZDK CRM APIs
      1.B. Using Connections
2. Requirement
3. Solution
      3.A. Create a Connection
      3.B. Invoke API using Client Script
4. Summary
5. Related Links



1. Ways to make calls to Zoho CRM APIs using Client Script

1.A  Client Script ZDK CRM APIs 
  • You can use the available Client Script ZDK CRM APIs to call v2 APIs directly from within your Client Script. 
  • To view this documentation, click on the help icon next to CRM API in the Library Section of the Client Script Editor. Here is how the screenshot of the documentation looks.


1.B. Using Connections

For calling other Zoho CRM APIs(other than the APIS covered in Client Script's ZDK CRM API) or third-party services, you will have to use Connections along with Client Script. In this post, let us see how to call Zoho CRM APIs. Check the Kaizen post on Third Party Integration using Client Script to know how to call Third Party APIs from Client Script.

2. Requirement

To retrieve all open deals for the currently viewed account.

3. Solution

To fetch app open deals for an account, you can use  COQL API. You can also use the Related Records API, get deals of a given account ID, and then filter the open deals.
But COQL API is recommended due to the following reasons.
- There is no indexing delay.
- You can use comparators such as is null, is not null, between, in, not in, like, and not like in your search query.
- You can fetch data from other lookup modules if any. Click this Kaizen Post for more details.
To accomplish this requirement, create a connection with the scopes for the API you want to call and create a Client Script

3.A. Create a Connection
  • To setup Connection, follow the below steps.
  • In Zoho CRM, go to Setup → Developer Hub → Connections and click "Create Connection".

  1. Select Zoho OAuth in Default Services and click "Create and Connect".

  • Specify a name for the Connection and select the Scopes required for COQL API.
ZohoCRM.coql.READ (and) ZohoCRM.modules.READ
(or)
ZohoCRM.modules.{module_name}.{operation_type}

  • Click Create and Connect.


3.B. Invoke API using Client Script
  • Go to Setup → Developer Space →Client Script. Click +New Script.
  • Specify the details to create a script and click Next.

  • Enter the following script and Click Save.

  1. var acc=$Page.record_id;
  2. var parameters = {
  3. "select_query": `SELECT Stage,Account_Name.id from Deals where Stage not in ('Closed Lost','Closed Won','Closed - Lost to Competition') and Account_Name.id = ${acc}`
  4. };
  5. var response = ZDK.Apps.CRM.Connections.invoke("test", "https://www.zohoapis.com/crm/v6/coql", "POST", 2, parameters, {});
  6. log(JSON.stringify(response));
  • You can invoke COQL API using Connections in Client Script using invoke() method.


Click here to know more about the Connections.
Here ,
  • Connection name is test
  • url is https://www.zohoapis.com/crm/v7/coql
  • method is POST
  • param_type is 2
  • parameters is the query stored in parameters variable.
  • headers - there are no headers in this case.
Summary

In this post we have discussed the following.
1. How to call COQL API using Client Script 
2. Steps involved to include the scopes via Connection
3. Advantages of COQL API


    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



                                                            • Sticky Posts

                                                            • Kaizen #198: Using Client Script for Custom Validation in Blueprint

                                                              Nearing 200th Kaizen Post – 1 More to the Big Two-Oh-Oh! Do you have any questions, suggestions, or topics you would like us to cover in future posts? Your insights and suggestions help us shape future content and make this series better for everyone.
                                                            • Kaizen #226: Using ZRC in Client Script

                                                              Hello everyone! Welcome to another week of Kaizen. In today's post, lets see what is ZRC (Zoho Request Client) and how we can use ZRC methods in Client Script to get inputs from a Salesperson and update the Lead status with a single button click. In this
                                                            • Kaizen #222 - Client Script Support for Notes Related List

                                                              Hello everyone! Welcome to another week of Kaizen. The final Kaizen post of the year 2025 is here! With the new Client Script support for the Notes Related List, you can validate, enrich, and manage notes across modules. In this post, we’ll explore how
                                                            • Kaizen #217 - Actions APIs : Tasks

                                                              Welcome to another week of Kaizen! In last week's post we discussed Email Notifications APIs which act as the link between your Workflow automations and you. We have discussed how Zylker Cloud Services uses Email Notifications API in their custom dashboard.
                                                            • Kaizen #216 - Actions APIs : Email Notifications

                                                              Welcome to another week of Kaizen! For the last three weeks, we have been discussing Zylker's workflows. We successfully updated a dormant workflow, built a new one from the ground up and more. But our work is not finished—these automated processes are


                                                            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

                                                                                                              • Open filtered deals from campaign

                                                                                                                Do you think a feature like this would be feasible? Say you are seeing campaign "XYZ" in CRM. The campaign has a related list of deals. If you want to see the related deals in a deal view, you should navigate to the Deals module, open the campaign filter,
                                                                                                              • Change scheduling emails time

                                                                                                                When sending an individual email there is a great feature to schedule them to send later. I could only use the one time that is suggested. Is there a way to select another time? Regards, Glenn
                                                                                                              • Zoho CRM: how can I control which contacts to sync with Outlook?

                                                                                                                I was just playing around syncing contacts from Zoho to MS Outlook (MS365 account.) The problem is our firm has hundreds of thousands of contacts and I don't want to bury my contacts list in outlook. Any help with this is greatly appreciated.
                                                                                                              • How to overcome limitations in meetings

                                                                                                                As a company, one of our deliverables is a meeting between two other companies, where we act as facilitators. So, if we recorded this meeting  in Zoho CRM, it should be connected to 2 accounts, 2 contacts, and 1 campaign (a campaign, in our use, is the
                                                                                                              • Add a 'Log a Call' link to three dot icon in Canvas

                                                                                                                Hi, There's a three dot element when creating a canvas called 'More'. I would like to modify this to add a link that says 'Log a Call' in order to quickly record the details of a cellphone call. I'd also like this to be a simple 'contact' selection and
                                                                                                              • Syncing Zoho Forms with Bigin - Embedding issue?

                                                                                                                Hello everyone, I created a Zoho Form for a page on my GoDaddy website to collect leads, which then transfers the data to Bigin. However, I'm facing an issue where it doesn't seem to work properly. I've integrated Zoho Forms with Bigin and tried embedding
                                                                                                              • Can not add fields to a Section

                                                                                                                I feel like I'm missing something obvious: I can add new Sections to my form but I can not add fields to the Sections. I've tried fields already on the form as well as dragging and dropping new fields into the Section but nothing will go into it. What
                                                                                                              • Record Logged in User while using CRM lookup field

                                                                                                                Is it possible, while using the Zoho CRM lookup field, to automatically use the user account logged into Zoho CRM in a hidden field? I was hoping to add employee accounts to my current plan. But would like a record on the Form submission of who submitted
                                                                                                              • Form Rules for Suburb Categories to alternate landing pages or Making a Fields Contents ALL CAPS

                                                                                                                I need to send differentform submissions to two to three different thank-you URLs (for Meta/Google pixels) depending on which suburb a user selects in a form. I have ~400 suburbs split into two categories (A and B, based on business value). Current challenges:
                                                                                                              • Collaps Notes

                                                                                                                There are times when long/large notes are added to a record i.e. Accounts or Deals etc. Currently, the full note is displayed in the notes related list section. It would be great if by default only 5 to 10 rows of the note are displayed when the note
                                                                                                              • Zoho Down

                                                                                                                I have a drop in my Zoho One services.
                                                                                                              • Runing RPA Agents on Headless Windows 11 Machines

                                                                                                                Has anyone tried this? Anything to be aware of regarding screen resolution?
                                                                                                              • Problem for EU users connecting Zoho CRM through Google Ads for Enhanced conversions

                                                                                                                Has anyone else experienced this problem when trying to connect Zoho CRM through Google Ads interface to setup enhanced conversions? Did you guys get it fixed somehow? The Problem: The current Google Ads integration is hardcoded to use Zoho's US authentication
                                                                                                              • Why am I getting event Pop-up Notification for events that have been cancelled?

                                                                                                                Why is Calendar Notification still popping up for events that have been cancelled or changed? Each time events are cancelled or changed, I have observed that I am still getting notifications for them. Below is a sample pop-up notification for one of the
                                                                                                              • Create a draft in reply to an email via Emails API

                                                                                                                Hi, I’d like to use the outgoing webhook to automatically create a draft reply to incoming mail. How can I use the Emails API to create a draft reply that is linked to an existing email thread? I couldn’t find the relevant method in the documentation.
                                                                                                              • India Tech Support

                                                                                                                Is there no phone tech support number for India? And no chat facility either?
                                                                                                              • Billing Management: #1 Billing a Universal Business Routine

                                                                                                                Hello, As the saying goes, "Do the hardest job first." We started with the complex subject of finance and revenue management, which is considered the backbone of any business. Now, let's shift our focus and take a deep dive into this Billing Management,
                                                                                                              • What is a a valid JavaScript Domain URI when creating a client-based application using the Zoho API console?

                                                                                                                No idea what this is. Can't see what it is explained anywhere.
                                                                                                              • 5名限定 課題解決型ワークショップイベント Zoho ワークアウト開催のお知らせ (9/25)

                                                                                                                ユーザーの皆さま、こんにちは。Zoho ユーザーコミュニティチームの藤澤です。 9月開催のZoho ワークアウトについてお知らせします。 今回はZoomにて、オンライン開催します。 諸事情につき、今月の開催回は中止となりました。 次回は10/31(金)14時からの開催を予定しています。 ━━━━━━━━━━━━━━━━━━━━━━━━ Zoho ワークアウトとは? Zoho ユーザー同士で交流しながら、サービスに関する疑問や不明点の解消を目的とした「Zoho ワークアウト」を開催します。 Zoho
                                                                                                              • Workdrive 5.0 / API Documentation Workflows

                                                                                                                Hi Zoho, When will the API documentation of the workflows be published? We are interested in using it to trigger manual workflows from an external application. Greetings, Justin
                                                                                                              • How many ZOHO-Sites does the ZOHO-One Suite allow for?

                                                                                                                The free version of ZOHO-Sites allows for two sites, but it seems that the professional version (which is included in the ZOHO-One Suite) only allows for two websites. Is that correct? How many sites can I have within one ZOHO-One account?
                                                                                                              • Webhook from Zobot to Zoho Flow fails

                                                                                                                I'm trying to connect from zobot to zoho flow. When testing in zflow, I am receiving all entered data from the connector correctly. The SalesIQ connector's "outputreaction" is {} (is this normal or is there a problem?). But as soon as I try my chat bot
                                                                                                              • Transition from Sole Proprietorship to GmbH (Limited Liability Company) – Best Approach in Zoho Books / Zoho One

                                                                                                                Hello everyone, I am currently operating under a Zoho One plan with a sole proprietorship in Switzerland. As of January 1st, 2026, I will be incorporating a new legal entity – a GmbH (Swiss equivalent of a Limited Liability Company). While the business
                                                                                                              • Issue Connecting My Domain to Zoho Sites Despite Purchasing It from Zoho

                                                                                                                Hello, I am facing an issue connecting my domain to my website on Zoho Sites. Details of the issue: I purchased the domain directly from Zoho. I am already using the same domain successfully with Zoho Mail. However, when I try to assign this domain to
                                                                                                              • Insert auto number from main form into subform rows

                                                                                                                Hello. I'm trying to take from my main form "order number" which i have setup as an auto generated number into every line created in my subform. So when a row is created in my subform i want the "order number " from the main form to be inserted automatically.
                                                                                                              • Dark Mode - Font Colors Don't Work

                                                                                                                When editing a document in Dark Mode and selecting font colors, they don't show up on screen.  Viewing/editing the same document in Light Mode shows them just fine.
                                                                                                              • Integrate Bunq with ZOHO Bookes

                                                                                                                We are new users of ZOHO Books, and our bank (BUNQ, in the Netherlands) isn't listed on the bank integrations. Is there a way to handle this?
                                                                                                              • Access Denied

                                                                                                                I am iOS Developer and updating our clients project and shifted ZohoDeskPortalCore SDKs from cocoapods to SPM and changed few lines of code but now i am get access denied, the help center app is unavailable. please contact administrator.
                                                                                                              • Using Zoho Desk to support ISMS process

                                                                                                                Hi, I am evaluating using Zoho Desk for security incident management. This seems to be aligned with Zoho Desk purpose as its just another type of incident. However in security incident management, ideally I can link incidents (tickets) with a risk from
                                                                                                              • TaxJar vs Avalara

                                                                                                                Hi, I'm evaluating adoption of a sales-tax service for US based business. Anyone else have experience with TaxJar and Zoho Books? I am a Zoho One subscriber so anticipate needing to use Flow to make this work. It seems like Avalara are simply too expensive
                                                                                                              • How to check Leads with no Task (open activity)

                                                                                                                Hi everyone, I was wondering if there’s a way to view leads that don’t have any tasks assigned or open activities linked to them.
                                                                                                              • What can we do on our end to improve the Answer bot answers?

                                                                                                                Hi, I'm using the Answer bot card in the Codeless bot builder. I've input several questions and their answers in the FAQ section to feed the Answer bot. The text is all in French, as this is the language our customers communicate in. I've tried testing
                                                                                                              • How to upload file to Connect using API?

                                                                                                                Hi there. I looked at the API documentation and nowhere did it mention how to use the API method to upload a file even though it is mentioned that it is possible to be done so. Please help.
                                                                                                              • Group Tax in Service Line Items

                                                                                                                Hi FSM Team! I noticed that when you update a tax in the service line item the group tax is not showing up as an option. Let me know what can be done thank you!
                                                                                                              • OAUTH_SCOPE_MISMATCH Error for Marketing Automation APIs with CRM Plus Account

                                                                                                                I'm trying to integrate Marketing Automation journey triggering via API but getting OAUTH_SCOPE_MISMATCH errors. I need clarification on API access for CRM Plus users.
                                                                                                              • Function #4: Schedule Customer Statements

                                                                                                                Regularly sending statements to customers is an imperative part of many business processes as it helps foster strong customer relationships and provides timely guidance on payments. While you can generate the statement of accounts and have it sent over
                                                                                                              • Limiting search or dependencies with an asterisk "*".

                                                                                                                I have a form with several dependency fields with options still developing for each field. Since these options were developing and not yet ready to be a selection in the field, I placed a filter for the dropdown field. In this filter, I selected fields
                                                                                                              • Cross Data Center Support for 1:1 Chats with External Users

                                                                                                                Hello Zoho Cliq Team, We hope you're doing well. We appreciate the recent enhancement that enables cross data center collaboration in external channels, which has already improved communication across distributed teams. However, we’ve noticed that this
                                                                                                              • Handling Greetings/Small Talk at the Beginning of a Zobot Conversation

                                                                                                                Hello everyone, I’m currently configuring a **Zobot** in Zoho SalesIQ and everything is working as expected, except for one specific scenario at the very beginning of the conversation. My target audience has the habit of starting with a **greeting or
                                                                                                              • Regex in Zoho Mail custom filters is not supported - but it works!

                                                                                                                I recently asked Zoho for help using regex in Zoho Mail custom filters and was told it was NOT supported. This was surprising (and frustrating) as regex in Zoho Mail certainly works, although it does have some quirks* To encourage others, here are 3 regex
                                                                                                              • Next Page