Extension Pointers #8: Handling real-time data updates between Zoho CRM and third-party applications using webhooks
A webhook is a web callback triggered by a specific event to provide real-time data updates between applications.
How does a webhook work?
Webhooks help enhance the connection between two applications. When an event occurs in a web application that implements a webhook, the webhook notices the event, serializes and collects the data, and posts the data to the URL configured in the form of a HTTP request.
You can implement either an inbound webhook or an outbound webhook. If an event triggered in your Zoho CRM account causes an action in a third-party application, it is called as an outbound webhook (going from your application to a third-party application) and the opposite is called an inbound webhook (incoming to your application from the third-party application).
How functions play a role in implementing webhooks
If Zoho CRM should be notified when a particular event occurs at the third-party end, you can create webhooks to post a callback on the occurrence of that event. In order to implement this, you need to define a function in your extension that can be triggered from the third-party application. Unlike standard functions, REST API functions can be triggered from anywhere (either from an extension or a third-party application) and thus help with timely interaction.
Webhook URLs and how to obtain them
You need to create a webhook and subscribe to events for real-time updates between applications. In order to create a webhook, a webhook URL is required. By subscribing your own webhook URL, you can customize, extend and integrate it with other third-party applications, facilitating instant web notifications.
The REST API functions/Standalone deluge functions can be written and exposed as REST APIs. The API names of these functions can be used as the webhook URL while creating your webhook.
In this post, we'll look at the basic steps on how to create an inbound webhook, where a third-party application event triggers a post-data action to your Zoho CRM account.
Note: The term "event" here refers only to the events supported by the third-party application, which you can subscribe during the creation of a webhook.
The steps to achieve this functionality while building your extension are:
➤ Establish a connection with your selected third-party application.
➤ Define a REST API function, to handle the response from the third party application.
➤ Subscribe the webhook URL of the REST API function with the third-party application.
Establishing connection with the third-party application
1. Before proceeding with implementation, it is important to check whether the third-party application supports webhooks. Establish a connection between Zoho CRM and the third-party application using the authentication methods supported by the application. You can learn more about the authentication methods for developing third-party integrations here.
2. If the method of user authentication supported by the third-party application is
- OAuth- use connectors to establish the connection
- API key forms- use custom variables to establish the connection
3. Define the third-party application's API to create a webhook with the required parameters specified by the third-party application.
Note: The subscription URL is termed in different ways by each application and is an important parameter to be noted while creating webhooks. In order to send the response to Zoho CRM, the third-party applications require a URL to perform HTTP POST request from their end. The following section defines the steps required to obtain this URL.
Defining a REST API function and obtaining a webhook URL
After establishing the connection, the next step is to define a REST API function that can be invoked by the third-party application whenever a subscribed event occurs in the third-party application.
2. Choose Functions under Automate from the left panel of the Zoho Developer console under Build, then click New Function.
3. Enter the name of the function. Choose Yes for the Invoke as REST API option to create the function as a REST API function.
4. The crmAPIRequest argument of the function is categorized as Map type by default. The entire request object is mapped automatically to the crmAPIRequest argument and holds the response from the third-party when the trigger event occurs.
5. The input for the function can be acquired from the following types:
| Component | Format | Value fetched using component of crmAPIRequest |
| body | request_body = crmAPIRequest.get("body"); | Content that is passed as a stream to the request |
| params | parameters = crmAPIRequest.get("params"); | Key-value pair or as JSON object to the request |
| file_content | filecontent = crmAPIRequest.get("file_content"); | File content passed to the request |
| user_info | user_info = crmAPIRequest.get("user_info"); | Information about the user |
| method | method = crmAPIRequest.get("method"); | HTTP method name in the request |
| auth_type | authtype = crmAPIRequest.get("auth_type"); | The name of the Authentication method(API key) |
| headers | headers = crmAPIRequest.get("headers"); | Additional information of the request available in the header |
6. The default return type of a Rest API function version 2.0 is a string. You can choose to return the response as a string or use the response object crmAPIResponse to define the following specifications of the response:
Specification key | Default value |
status_code | 200 |
Content-Type | application/json;charset=utf-8 |
headers | {"Content-Disposition", "attachment;filename=response.json"} |
body | empty |
7. When you have finished defining the REST API code, click Invoke as the REST API button.
8. The URLs to invoke the function will be displayed and are termed as webhook URLs, which will be used for subscribing the function with the third-party.
Unlike the sandbox URL provided with a predefined ZAPI key, the production URL requires the value of the user's ZAPI key.
Why ZAPI key?
For authentication purposes, the REST API functions use API keys as the method of authentication. It requires the value of the ZAPI key in order to authenticate a user.
Code snippet to obtain ZAPI Key
m = {"nameSpace":"<portal_name.extension_namespace>"}; apikeyresp = zoho.crm.invokeConnector("crm.zapikey",m); zapikey = apikeyresp.get("response"); |
9. The ZAPI key value can be passed in the Production URL, which will serve as a webhook URL to subscribe a webhook and invoke this function.
Creating and subscribing a webhook
➤ REST API functions can be triggered from a third-party application only when it is subscribed with that application while creating an inbound webhook.
➤ The webhook URL mentioned in the previous section will serve as the subscription URL while creating the webhook.
By following these steps, you can implement webhooks for third-party integrations using REST API functions. In our upcoming post, we'll look at a working example depicting this process.
We hope you found this guide helpful in creating and using custom webhooks to link your Zoho CRM account to third-party applications.For tips and guides like this, keep following this community forum.
SEE ALSO
Access your files securely from anywhere
Centralize Knowledge. Transform Learning.
All-in-one knowledge management and training platform for your employees and customers.
New to Zoho Recruit?
Zoho Developer Community
New to Zoho LandingPage?
Zoho LandingPage Resources
New to Zoho Survey?
New to Zoho CRM Plus?
Deliver unforgettable customer experiences
New to Zoho CRM Plus?
Deliver unforgettable customer experiences
New to Zoho Marketing Plus?
Everything you need to run your marketing
New to Zoho Marketing Plus?
Everything you need to run your marketing
New to Bigin?
Topic Participants
Nanditha Somasundaram Somasundaram
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 thisKaizen #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 howKaizen #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
New to Zoho TeamInbox?
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
Design. Discuss. Deliver.
Zoho Show Resources
Get Started. Write Away!
Writer is a powerful online word processor, designed for collaborative work.
Zoho CRM コンテンツ
-
オンラインヘルプ
-
Webセミナー
-
機能活用動画
-
よくある質問
-
Ebook
-
-
Zoho Campaigns
- Zoho サービスのWebセミナー
その他のサービス コンテンツ
Nederlandse Hulpbronnen
ご検討中の方
Recent Topics
You cannot send this campaign as there is no contact in the selected mailing list.
We have synced contact lists and sent campaigns just fine prior to today. Now no matter what list I upload when I go to send the campaign it gives an error "You cannot send this campaign as there is no contact in the selected mailing list." And now itPivot Report Formula - using a today() variable
Is it possible for me to use a value of today() in a formula on a pivot table? I'm trying to identify where the end date of a project is greater than the current date if("10. Projects (Zoho Projects).End Date" > today(), 'Yes', 'No') I get the error thatCannot connect IMAP to outlook
Hello I have followed the instructions to connect my zoho account to Outlook IMAP but get this message: Session Id: bba118fb-151c-824f-9512-3ad1e91b109d Timestamp: 1708976566964 Error code: INVALIDCREDENTIALS INTERACTIONREQUIRED I'm using the exact configerationDepartment Overview by Modified Time
We are trying to create visuals to show the work our agents do in Zoho Desk. Using Zoho Analytics how can we create a Department Overview per modified time and not ticket created time? In order for us to get an accurate view of the work our agents areEnhance Sign CRM integration
Hello all, I'm working on a custom Deluge script to enhance the integration between Zoho CRM and Sign by using a writer merge template for additional flexibility. I want to replicate the post-sign document integration that exists between CRM and SignZoho Workdrive download was block by security software
Hi Team, Recently workdrive download was blocked by huorong security. Could you please advise how to put zoho workdrive as white list? every time we put "*.zohoexternal.com" or "workdrive.zohoexternal.com", the warning msg will still pop in next dowChoosing a portal option and the "Unified customer portal"?
I am trialling Zoho to replace various existing systems, one of which is a customer portal. Our portal allows clients to add and edit bookings, complete forms, manage their subscriptions and edit some CRM info. I am trying to understand how I might bestGeneral feedback
I think Zoho is at the moment (potentially) the best, or perhaps the only, real online solution, for business, and not just business. Surely the only one that has all the features that I need (and I've probably tried everything, at least all that has a cost-free option). It has still got lots of bugs and imperfect features, so I do hope it keeps developing and becomes a really professional platform. Lots of people (including me) want to use such one platform for all scheduling/mail/note-taking...How to add SSL to Short URL custom domain?
Hi, I've added a custom domain the the URL Shortener Domains. It's creating the short URL fine, but when clicking through, firstly I get an SSL warning, then a 400 Bad Request warning.Single Portal for Multiple Apps
Hello, I'm just getting started with Zoho and I'm very overwhelmed. I am currently using the free trial of Zoho One, but if I can figure it out, I intend to upgrade to the paid version. Zoho One, of course, gives me access to an entire suite of services/applications. One of the things I'd like to do is have a single place for clients (customers?) to log in and view current projects, invoices, contact information, etc. A single login for my clients. A single portal. I've come across documentationAntispam validation failed for your domain in Accounts
I tried adding a domain to zeptomail.zoho.com, but the “add domain” operation failed. The front‑end error reads: “Domain could not be added. Please contact support@zeptomail.com.” The back‑end API returned: ``` { "error": { "code": "TM_3601", "details":CodeX Scripts for Enforcing Custom Project Logic
Every organization has a defined way of executing projects. There are clear expectations around how tasks should move, when projects should progress, and which actions require validation. When these rules are consistently followed, projects remain structuredCancelled appointments still block out timeslot
I haven't had to test this before, but I've just found a problem. I had an appointment in a certain timeslot, and that appointment was cancelled. However, Bookings won't let another appointment be booked in that slot - it makes that time unavailable untilPreventing Group Emails From Being Sent to Group Member Personal Mail
We have a group setup for a public facing email address. We have streams turned on for this group. Right now when an email is sent to this group email it hits the group stream and also sends a copy of the email to all group members. We'd like to disableUnusual activity detected from this IP. Please try again after some time.
Hello Zoho admin and IT team We are a registered website in Eloctronic services and we been trying to add our users to the zoho system but this issue faced us ,, hope you unlocked us please.¿Puedo migrar mi sitio desde WordPress a Zoho? ¿Zoho admite herramientas con código personalizado?
¡Hola comunidad! Estoy evaluando la posibilidad de migrar mi sitio web https://calculadoradenotas.cl/ desde WordPress a una solución Zoho, y tengo algunas dudas técnicas que espero puedan aclararme. Mi sitio no es solo informativo: es una herramientaHow do I link my invoice to an estimate?
There has been instances where I have created estimates, however, invoices for the same estimate were created independently. The status of these estimates hasn't converted to 'invoiced'.Impossible to import Journal from Freshbooks
I have been trying to import journals from Freshbooks since August 30th. Every time I try to import, I get an error message. I have already made sure every row has a date. First it was saying the account and notes had unexpected input and that every debit/creditPeppol: Accept Bill (Belgium)
Hi, This topic might help you if you're facing the same in Belgium. We are facing an issue while accepting a supplier bill received by Peppol in Zoho Books. There is a popup with an error message: This bill acceptance could not be completed, so it wasConvert invoice from zoho to xml with all details
How to convert an Invoice to XML format with all detailsPrevent subform editing on a module's detail's page
Hi everyone, We would like to prevent any editing of the subform data in the : Create page Edit page Details page (as subform editing is now allowed by the recent UX update) We are able to prevent editing by making the subform fields read only in theWeekly Tips : Save Time with Saved Search
Let's assume your work requires you to regularly check emails from important clients that have attachments and were sent within a specific time period. Instead of entering the same conditions every time—like sender, date range, and attachments included—youDiscontinuing Zoho ShowTime service on May 30, 2026
Hello everyone, As a follow-up to our earlier announcement, we’d like to share an important update regarding Zoho ShowTime’s discontinuation timeline. Zoho ShowTime, our online training platform, reached its end of life on December 31, 2025, and its servicesAbility to CC on a mass email
Ability to CC someone on a mass email.Bookings duration - days
Hi team, Is there any way to setup services/bookings that span multiple days? I am using Zoho Bookings for meeting room bookings. Clients may wish to book a room for more than one day, for up to a month. If not, is there a plan to allow services to be setup with durations of Days as well as hours and minutes? Many thanks, Anna.Customer address in Zoho Bookings
Hello, Is it possible to add customer address information to the Zoho bookings appointment screen? Or have it pull that information automatically from the CRM? We are wanting to use this as a field management software but it is difficult to pull the address from multiple sources when it would be ideal to have a clickable address on the appointment screen that opens up the user's maps. It would also be advantageous for the "list view" to show appointment times instead of just duration and bookingFeature Request - Allow Customers To Pick Meeting Duration
Hi Bookings Team, It would be great if there was an option to allow customers to pick a duration based on a max and minimum amount of time defined by me and in increments defined by me. For example, I have some slots which are available for customersNew feature: Invite additional guests for your bookings
Hello everyone, Greetings from Zoho Bookings! We are happy to announce the much-awaited feature Guest Invite, which enhances your booking experience like never before. This feature allows additional participants to be invited for the bookings to makeChanging the owner of a call
Am I correct in my conclusion that I cannot change the owner of a call in Zoho? The field does not show up in the screen, nor can I make it show up as the systems does not give me that option. I cannot "mass update" it either. I tried it, but Zoho refuses to change the name of the owner. Please help out: how do I change the owner of a call.Unified Notes View For Seamless Collaboration
To facilitate better coordination among different departments and team members, the notes added to a record can now be accessed in all its associated records. With this, team members, from customer service representatives to field technicians, can easilyRemove Profiles from "Forecast" Module
How can I remove Profiles from My forecast Module? Image Below The only revenue generators are the VP's, and the Estimation Managers, and the Estimators subordinate to the Est. Managers. How can I remove the unused Profiles? Its frustrating to see themRestoring records from the recycle bin programatically
Background I'm working on a piece of software to automate conversion of Leads into Deals based on order status from my company's website. The process is mostly complete, right now I'm just working on handling a few edge cases to ensure data integrity.Does Zoho Learn integrate with Zoho Connect,People,Workdrive,Project,Desk?
Can we propose Zoho LEarn as a centralised Knowledge Portal tool that can get synched with the other Zoho products and serve as a central Knowledge repository?Create static subforms in Zoho CRM: streamline data entry with pre-defined values
Last modified on (9 July, 2025): This feature was available in early access and is currently being rolled out to customers in phases. Currently available for users in the the AU, CA, and SA DCs. It will be enabled for the remaining DCs in the next coupleInvoices not arriving and mail server settings
I am having an issue where some clients are not receiving invoices. I have configured Zoho Books to send on my behalf and configured the appropriate SPF, DKIM and DMARC settings on my mail server and tested these as working. I get the CC'd copies so ISalesIQ Identity Update for Logged In Wordpress User
Hey folks, SalesIQ does not automatically detect when a visitor logs in to WordPress and update their identity to match. For example, if a client of ours visits the site and logs in, SalesIQ will not track them correctly by default. The Solution The solutionParagraph spacings in Zoho Notebook are double-spaced only. Is there a way to keep the original spacing format?
Sorry I don't know the proper terminologies but the best way I can put it is all single-spaced paragraphs that I copy to Zoho Notebook become double-spaced paragraphs. It's very inconvenient and counterproductive when copying and pasting things from andChanging line space in Notebook
My lines are double spaced. How do i change to single space?Plug Sample #14: Automate Invoice Queries with SalesIQ Chatbot
Hi everyone! We're back with a powerful plug to make your Zobot smarter and your support faster. This time, we're solving a common friction point for finance teams by giving customers quick access to their invoices. We are going to be automating invoiceWorkdrive on Android - Gallery Photo Backups
Hello, Is there any way of backing up the photos on my android phone directly to a specific folder on Workdrive? Assuming i have the workdrive app installed on the phone in question. EmmaNext Page