Enhancements to Custom Connectors in Zoho Creator

Enhancements to Custom Connectors in Zoho Creator

Hello everyone,

At Zoho Creator, we believe in providing you with the necessary tools to achieve a well connected ecosystem of apps. Our Custom Connectors feature is a testament to this, enabling you to integrate with a wide range of external services beyond those available through built-in connectors.

While our built-in connectors already cover over 500 popular services (with new ones being added regularly), custom connectors take this a step further by allowing you to connect with virtually any third-party service.

To make this powerful feature even more robust and enterprise-ready, we've rolled out a series of enhancements designed to support advanced authentication methods, enable secure cloud integrations, and ensure seamless connectivity with external services. In this post, we'll walk you through the most recent updates:
  • OAuth 2.0 - Client authentication modes
  • AWS Signature authentication 
  • Bearer token authentication
Let's explore each in detail:

OAuth 2.0 - Client authentication modes

Different APIs have varying expectations for how client credentials should be presented during OAuth token exchange. Until now, our OAuth authentication type assumed a single client authentication method, and users faced issues when credentials had to be sent in the authorization header. To address this, we've introduced a new Client Authentication option for custom connectors using OAuth 2.0. This allows you to specify how your client credentials (Client ID and Client secret) are transmitted to the authorization server during the token request process. You can choose from two options:
  • Include in the form data (Default): This method adds your credentials to the form data submitted within the body of the request.
  • Include in the authorization header: This method places your credentials in the request's security header using HTTP basic authentication.
Why this matters
  • Improved compatibility with APIs that enforce strict authentication rules
  • Smoother integrations with enterprise-grade APIs
  • Reduced authentication errors

Example
Assume you want to integrate Zoho Creator with Reddit, a popular social media platform. The Reddit API uses OAuth 2.0 and its documentation explicitly states that client credentials must be sent in the Authorization header using basic authentication.

Now, when configuring your OAuth 2.0 custom connector in Zoho Creator, you can simply select Include in authorization header under the Client Authentication field. This ensures your authentication flow will work as expected, without any custom code or middleware.

AWS Signature authentication

The industry-standard authentication required to securely interact with AWS services is now supported in Zoho Creator. The new AWS Signature 4 authentication type within Custom Connectors enables you to integrate with AWS services without relying on any middleware or authentication workarounds. This unlocks the ability to connect to a wide range of popular AWS services (such as S3, Lambda, DynamoDB, and more) and perform the required actions.

Why this matters
  • Enterprise-grade security for applications that deal with critical workloads or sensitive data
  • Seamless automation of workflows with your existing AWS infrastructure from within Zoho Creator
  • Complies with AWS's Signature Version 4 method, which ensures robust security and maximum compatibility while authenticating requests to AWS services
Example
Consider a setup where your organization generates critical business documents using a Zoho Creator application. You may need to store these documents in their AWS S3 bucket for recordkeeping and auditing purposes.

With the introduction of the new AWS Signature authentication in Custom Connectors, you can easily connect to S3 by providing your AWS credentials and region. Then you can use the invokeURL task to transfer documents from Zoho Creator to your S3 bucket.

This enables seamless and secure integration with AWS, bringing the full power of AWS's cloud capabilities into your Creator apps.

Bearer token authentication

Zoho Creator now supports Bearer token authentication. Many third-party services, like GitHub and Slack, use this authentication type, which is a lightweight method that enables secure API calls without the need for full OAuth. Now you can seamlessly integrate these services into your applications using custom connectors.

Why this matters
  • Eliminates the need for complex setups associated with other authentication types, like OAuth, making it ideal for APIs that use token-based access
  • Enables faster, hassle-free integrations with internal tools, developer platforms, and microservices
Example
Assume your sales team relies on Slack for internal communication. With Bearer token authentication now supported in Zoho Creator, you can establish a custom connector with Slack. Then you call Slack's API using invokeURL to automatically post updates to a channel whenever a new lead is generated.

In essence, this is a simpler, more secure path to connect Creator with modern APIs from GitHub and Notion to your own internal systems.

Help documentation

We've updated our help resources to reflect the recent enhancements to Custom Connectors. For detailed information, please refer to the Understand Connectors page.

Bonus: mTLS in Zoho Creator

While we're on the topic of custom connectors, let's wrap things up with a platform-level security upgrade. For the first time in the Zoho ecosystem, Zoho Creator now supports Mutual Transport Layer Security (mTLS) across all integrations. mTLS is available for both built-in and custom connectors. 

mTLS provides an added layer of security by enabling certificate-based, two-way authentication and ensures that both the client and server verify each other's identity. 

Why this matters
  • Particularly valuable for enterprises operating in zero-trust environments
  • Helps meet compliance requirements, such as HIPAA, ISO 27001, GDPR, and other industry standards
Availability
mTLS is currently available only on demand. Please reach out to our support team if your integrations require mTLS-based authentication.

These powerful enhancements reaffirm Zoho Creator's commitment to helping you build deeply integrated, enterprise-grade business applications—and we'll continue enhancing the platform to support your evolving needs. Stay tuned for more updates coming soon!

Till then,
The Zoho Creator Team

    • Sticky Posts

    • Introducing Zoho Creator's 2025 Release Projection 2

      Hello Creators! I'm Prakash, from the Creator product management team, and today I'm delighted to unveil our next set of features as part of Release Projection 2 for 2025. With thoughtful analysis and planning, we've curated powerful new capabilities

    • Zoho Creator - 2023 Release Projection 1

      Hello everyone! A very Happy New Year to you and your family. Hope you're all good and having a great time using Zoho Creator to make your lives easier and your businesses prosper. 2022 was an action-packed year for us at Creator, and we hope to continue

    • Zoho Creator User Group meetups in a city near you! - Oct - Nov, 2023

      Greetings from the Zoho Creator team! We're hosting a series of Zoho Creator meetups in various cities across the globe, and we'd love to meet you there! Our meetups are a great opportunity to network with industry peers, exchange ideas and best practices,

    • Zoho Creator - 2023 Release Projection 2

      Hello everyone! Time truly flies when you're having an incredible journey, and today we mark the completion of an eventful and action-packed six months. It feels like just yesterday when we embarked on this adventure together with the launch of our new

    • Upcoming Updates - August 2022

      Hi all, Greetings from the Zoho Creator team! Today we've got news for you on some exciting updates. And rest assured— there’s more to come! In this post, we'll be going over the upcoming features and improvements for this month as mentioned below. A

      • Recent Topics

      • Scheduled Reports - Do not send empty report

        Hello, We are intensively using reports in the CRM, especially for sales managers. When data is empty, they still receive an email. Can you add an option to avoid sending the report when data is empty?

      • Is Zoho One Desktop more secure than Zoho One Web SaaS?

        Is Zoho One Desktop more secure than using Zoho One in browser? Inherently, it seems desktop would be unless you don't do things like share your pw or leave pc on. I am concerned about data being on the cloud or someone else's server and database.

      • Reminder Settings - Time Tracker

        On the time tracker in Reminder Settings I created a reminder according to the Zoho manual. But a manager asked me to change the message that goes in the email. Is it possible to change the message? I didn't find that in the Zoho manual. Another question: I configured to receive the reminder everyone who logged in less than 40 hours. Does Zoho consider less than 40 hours of the current week or the whole month? Another situation, I put it so that I and another specific user would receive the notification,

      • Create Item group from a composite Item

        I have applied my mind for hours but cannot figure this out. Can you have a composite item in an item group?. E.g. We bundle different color and size SKU's together as composite items. Also Using composite items as Bill of Materials. We want to create

      • Main difference of Zoho Recruit Corporte version and Staffing HR vesion

        Hi Zoho, I need help to fully understand what is the main key point differences of Recruit Corporate version versus the Staffing HR version? We are currently using Corporate HR version and we are looking on having an insightful automated reporting, does

      • Out of Stock items showing in Commerce

        I have over 6000 items and most are not in stock, but all items are showing up in Commerce whether they are inventory or not. What option or feature can you use to hide items in Commerce at zero or negative quantities? I currently am using Commerce for

      • Is it possible to transfer data from one related list to another within the same module ?

        In the Leads module, there is an existing default Product related list that already contains data. Recently, I added a custom multi-lookup field, which created a new related list in the same Leads module. Now, I need to move the existing data from the

      • How to implement new online payment gateway?

        Hello, Can you tell me how to proceed to implement my local payment gateway? DIBS has an open avaiable API that should be easy to implement into ZOHO BOOKS. http://tech.dibspayment.com/dibs_payment_window

      • Formula working in MS Excel , is not working in Zoho Sheets, Filter fuction which is working in MS sheets per the attached workbook / Daily update.

        Filter function , which is working in MS Excel is not working in Zoho sheets. Please help on function of filter of particular class sheets and extract students name who has more than 3.5 hours of study hours on particular day depending on date in D7 cell.

      • New in Smart Prompt: Record Assistant for contextual assistance, and support for new AI models

        Smart Prompt helps teams stay informed and move faster by providing relevant suggestions where work happens in CRM. With this update, Smart Prompt becomes more adaptable to your organization’s AI preferences. You can now choose which Large Language Model

      • Improved Integration Failure Information (And Notification Options)

        Hi, When an attachment service for example fails, you just get "Field x - Error", I can check the field it is failing on and find nothing wrong, same file size, type, dimensions, etc. so more information as to the actual issue would be helpful. And an

      • Change User Role in a Form

        Hi, When in a form, it would be good (And consistent) to be able to change the user role/permission like you can with Shared Reports, All Entries or the actual User itself, rather than having to delete the users permission and then add it back again with

      • Reassign Partially Saved Entries

        Hi, I would like to be able to go to Partially Saved Entries and like the option to delete them I would like the option to multi-select and be able to reassign them to another user to complete (Such as when a user has left the company). Thanks Dan

      • Increase the "Maximum Saved Entries per User" Options Limit

        Hi, You can create lots of saved entries, yet the Limit when you apply one is 25, we may often expect 32 to be in draft, and therefore want to enforce that, can we increase the limit of this field from 25 to 100 (As you can just turn it off and have more

      • Product Updates in Zoho Workplace applications | December 2025

        Hello Workplace Community, Let’s take a look at the new features and enhancements that went live across all Workplace applications this December. Zoho Mail Block emails without notifying the sender Block emails without sending a rejection notification

      • Zoho CRM for Gmail Extension Not Working in Brave Browser?

        Is anyone able to get the Zoho CRM Chrome Extension working in the Brave browser? They're both built on the Chromium platform and every other Chrome Extension works with the exception of Zoho CRM for Gmail so any ideas here?

      • Set Frozen Cells in the Report Settings

        Hi, It would be nice to be able to set the frozen cells in the report Settings, and have an option if this is fixed or can be changed after loading (On the next load it still goes back to the Settings). Thanks Dan

      • Microsoft Teams now available as an online meeting provider

        Hello everyone, We're pleased to announce that Zoho CRM now supports Microsoft Teams as an online meeting provider—alongside the other providers already available. Admins can enable Microsoft Teams directly from the Preferences tab under the Meetings

      • Tip of the week #26: Import/ Export calendars in Zoho Calendar.

        Any calendar on the web or calendars that you create in any other calendar application can be imported in to Zoho Calendar. This will help you to add the events from the calendars that you import to your Zoho Calendar. You also have the option to export

      • Add Zoho Forms to Zoho CRM Plus bundle

        Great Zoho apps like CRM and Desk have very limited form builders when it comes to form and field rules, design, integration and deployment options. Many of my clients who use Zoho CRM Plus often hit limitations with the built in forms in CRM or Desk and are then disappointed to hear that they have to additionally pay for Zoho Forms to get all these great forms functionalities. Please consider adding Zoho Forms in the Zoho CRM Plus bundle. Best regards, Mladen Svraka Zoho Certified Consultant and

      • Social icons, open in new tab?

        Hello, I have two social icons on my footer, Facebook and Psychology Today. Clicking on the Facebook icon opens a new tab, the Psychology Today icon does not. I would like them both to open a new tab. Am I missing a setting somewhere?

      • Real-Time Screen Annotation During Zoho Cliq Screen Sharing

        Hi Zoho Support Team, Hope you're doing well. We’d like to request the addition of real-time screen annotation tools during screen sharing sessions in Zoho Cliq video calls. 🔍 What We're Looking For: The ability for the presenter—and optionally, other

      • Autofill address using smart fields mapped over the pdf document

        Hi, I'm using mail merge to map smart fields onto PDF documents I plan to distribute for signing. I already have a Zoho Sign subscription. When mapping smart fields from the Employee form, I only see the permanent and current addresses which include the

      • How do I cap employee leave accrual

        HI there, How do I cap an employee's leave accrual? The policy is that you accrue 15 days leave annually (1.25 days a month) and once you reach 15 days, you wont accrue more until you take leave. Thank you!

      • Open sub form from a button as a popup form

        Is there a way within a form to use similar code as below to show a button in the form when clicked opens the subform for data to be added to the record being viewed in the form OpenUrl("#Form:<Customer_Delivery_Address>?<Delivery_Address>=" + input.ID,"popup

      • Dont have backup option in setting

        Hi guys. I started using zoho book a week ago. I bought premium package yet I don't have backup option in setting. I hope anyone can help me find a solution. Thanks in advance

      • Making Tags Mandatory

        When creating an expense, is it possible to make the Tags field mandatory?  I see the option in settings to make other fields mandatory, like Merchant, Description, Customer, etc, but nothing about Tags. Thanks! Kevin

      • Is there a plan to integrate zoho voice with zoho books?

        Hello, Is there a plan to integrate zoho voice with zoho books? Right now we are using the Twilio SMS integration into zoho books, but have recently decided to switch to zoho voice for calls and sms. Is there a plan to integrate zoho voice natively into

      • Pass variables to Zoho Desk via URL to create a fast new ticket landing page

        We are integrating our phone system into Zoho Desk. Currently when a helpdesk agent answers the phone, a soft client opens a new tab with zoho desk at the new case page. https://desk.zoho.com/support/companyname/ShowHomePage.do#Cases/new We would like

      • Zoho Books Extension: What Happens If Custom Fields Already Exist?

        When developing Zoho Books extensions, what happens if the target Zoho Books organization already has a custom field with the same API name as one defined in the extension? I’m asking because we originally created an on-Books version of this functionality,

      • Modular Permission Levels

        We need more modular Permissions per module in Books we have 2 use cases that are creating problems We need per module export permission we have a use case where users should be able to view the sales orders but not export it, but they can export other

      • Free Webinar on 21 January: Looking back at Zoho Mail in 2025

        Hello Zoho Community! Curious about how Zoho Mail evolved in 2025? Wondering how these updates can make your everyday email work simpler? We’ve got a session you won’t want to miss. In our Zoho Mail 2025 recap webinar, we’ll walk you through the key features

      • Cliq Networks users can see all other network users contact information

        Is there a way to hide user contact information from each user in networks? I would only like the users to see the admin's contact information, not other users. Network users information shared by default

      • 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

      • Missing the "Find & Merge Duplicates" choice

        Hi, I am missing the "Find & Merge Duplicates" choice. I looked under the "More Actions" menu in Contacts, Accounts, Vendors, and Leads and it is not there. I have full permissions. Please assist me on finding this feature. Thanks!

      • OAuth integration issues

        I'm experiencing persistent OAuth errors when trying to connect Make with Zoho API. I've tried multiple approaches but keep encountering the following issues: First error: 'Invalid Redirect Uri - Redirect URI passed does not match with the one configured'

      • Marketing Tip #16: Ideal sizes and formats for adding images to your online store

        Images can make (or break) your storefront experience. When your banners and product photos follow the right sizes and aspect ratios, your store looks cleaner, loads faster, and feels more trustworthy—especially on mobile. Here are recommended image sizes

      • Improve WhatsApp Module in Zoho CRM

        The current WhatsApp module UI in Zoho CRM feels cluttered and complex, especially when handling high volumes of conversations. It would be great to enhance the WhatsApp module UI/UX by adopting a clean and simplified interface similar to Bigin CRM’s

      • Blueprint transitions on locked records

        We use the ability to automatically lock records (quotes, sales orders, etc.) based on criteria, such as stage. For instance, if a quote has been sent to a client, the quote is then locked for further edits. Our ideal quote stage process is: Draft>Sent>Won.

      • Enhance productivity with the revamped Zoho Sheet View

        Hello folks, For some time now, you've been able to use the Zoho Sheet View to quickly edit multiple records or to insert a batch of new records. Its tabular interface allows users to engage in these tasks productively. Despite this, the existing Sheet

      • Next Page