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

    • 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
    • Introducing Zoho Creator's v2 APIs

      Hello App Creators, Welcome to Zoho Creator's v2 APIs! This post will serve as the central point for migrating implementations of Creator's current APIs (v1) to v2. Improvements that v2 brings OAuth-based authentication, which is more secure than the
    • Recent Topics

    • Function #10: Update item prices automatically based on the last transaction created

      In businesses, item prices are not always fixed and can fluctuate due to various factors. If you find yourself manually adjusting the item rates every time they change, we have the ideal time-saving solution for you. In today's post, we bring you custom
    • Inventory Adjustments

      Hi, How to transfer the material from one head to another ? Like materials purchased for manufacturing the laptop need to transfer from consumption inventory (Quantity of raw materials reduced) to destination inventory ( Quantity of Laptop increased)
    • Zoho CRM Community Digest - Aug 2025 | Part 1

      Hey everyone! The first half of August went by, and we have a few announcements and some good noteworthy discussions. So, let's take a look at them! Product Updates: Introducing Connected Records feature: Zoho CRM’s Next-Gen UI now includes Connected
    • Please make it easier to Pause syncing

      right now it takes 3 clicks to get there. sounds silly, but can you make it just 2 clicks to get it done instead? thats how dropbox does it, 2 clicks to pause instead of 3.
    • How to create a Zoho CRM report with 2 child modules

      Hi all, Is it possible to create a Zoho CRM report or chart with 2 child modules? After I add the first child module, the + button only adds another parent module. It won't let me add multiple child modules at once. We don't have Zoho Analytics and would
    • SalesIQとPageSenseの利用について

      初めての投稿で場違いだったらすいません。 弊社ではSalesIQを運用しているのですが、追加でPageSenseの導入もしたいと現場からの声があります。 両サービスともクッキー同意バナーが必要なサービスなのですが 弊社では同意無しに情報はとりませんという方針なので 2つ入れると2つバナーを出す必要がでてきます・・・ 両サービスを運用されてる方があれば運用状況とか教えてほしいです。 PageSenseについては詳細まで機能を理解してないなかでの質問です。
    • How to integrate Zoho Forms with Zoho CRM on Standard Plan

      Hello Zoho Support Team, I am using the Standard Zoho Forms plan (USD 30/user) and I would like to integrate Zoho Forms with Zoho CRM so that certain fields in my forms can be automatically prefilled using data from Deals in CRM. Specifically, I want
    • Export PDF File Name

      Is it possible to change the default Zoho .pdf naming scheme for inventory items like quotations? Would like to use the the Subject as the default quote name. Is this possible?
    • How to change the from address from 'no reply' for an email template in CRM

      Hi, We have our CRM set up with the from field as sales@XXX. I have just created a series of email templates and sent a test and they are sending from noreply@zoho I have tried searching for how to change the email template but don't have the options
    • Zoho CRM Client Script - SetCriteria in lookup Field

      Hello All One More Zoho CRM Client Script Tips & Trick. Now you can Set the Criteria on Your lookup in zoho CRM, It Comes With a Create Page, Edit Page, and Details Page (Standard). Example:- We have a Room Module that includes Room Name, Status, Campus,
    • Kaizen #71 - Client Script ZDKs for Detail (Canvas) Page

      Hello everyone! Welcome back to another interesting Kaizen post. In this post, we can discuss Client Script ZDKs support for Detail (Canvas) Page. What is Detail (Canvas) Page? A Detail(Canvas) Page allows you to customize the record detail page to your
    • Rich-text fields in Zoho CRM

      Hello everyone, We're thrilled to announce an important enhancement that will significantly enhance the readability and formatting capabilities of your information: rich text options for multi-line fields. With this update, you can now enjoy a more versatile
    • Zoho Reports Duplicating Entries

      I have a custom costing tab with a table where we entre invoices. These are under a Heading (PO Subject) and notes added in the form with different line items. In the reports, I have organised the report to group per PO Subject, with the total of the
    • Validation Rule Not Working for Mandatory Field in Zoho Blueprint

      As a Zoho user, we created a validation rule for a specific field. However, we noticed that when we made the same field mandatory within a Blueprint, the validation rule we defined did not work. When we reported this issue to Zoho Support, they stated
    • Notes Issues

      Been having issues with Notes in the CRM. Yesterday it wasn't showing the notes, but it got resolved after a few minutes., Now I have been having a hard time saving notes the whole day. Notes can't be saved by the save button. it's grayed out or not grayed
    • Export from Contacts module to Products module in Zoho CRM

      Good afternoon, I would like to send a number of contact info from the Contacts module into the customized module (tickets to an event) in one operation. I have selected several contacts in the Contact module (people who I have labelled as people I want
    • Zoho Commerce

      Hi, I have zoho one and use Zoho Books. I am very interested in Zoho Commerce , especially with how all is integrated but have a question. I do not want my store to show prices for customers that are not log in. Is there a way to hide the prices if not
    • Can’t receive emailI c

      I have generated a basic for but when I submit it I don’t get a email, I’ve been in the settings and tested me email, all appears correct, can you please help me
    • Data Capture for Historical Activity (Especially One Lead Downloading Variois reports without Overwriting the info)

      Is there a better way in Zoho CRM to capture and archive a lead’s historical activity—specifically whenever they download reports—so that the data is stored without being overwritten?”
    • Client Script - Updating Field Value in Detail Page of a Lead

      Hello, I'm trying to use Client Script To enrich some data of the Lead when one of my User fill the "City" field in the detail page of the Lead. This is my Script: log (value); var response = ZDK.Apps.CRM.Functions.execute("getInfoCitta", { "nomeCitta":
    • Auto shapes in Zoho sheet.

      Does Zoho sheet supports inserting auto shapes (rectangle, circle...). I did not see any option to do so.  If its not supported currently, is there any plans on bring in this features. Any timelines ?
    • I Can't Clone Webinar that I Co-Organize

      How do i get our account admin to give me permission to clone our webinars? I am a co-organizer
    • How to get the call recording external ID via desk API

      I have enabled phonbridge integration with Zoom Call. I am trying to access the call recording in Zoom by calling Zoom API. I have built a Desk workflow to trigger on a new call, to call a custom function. when calling the API, the response doesn't contain
    • Can't View Project Names in Mobile App

      I can't view project names on PO's in the app, nor can I add that as a viewable PDF field in inventory on the computer. I've attached screenshots showing that in the mobile version whether you are on the PO, editing the PO, or viewing the PO line items,
    • How do you print a refund check to customer?

      Maybe this is a dumb question, but how does anyone print a refund check to a customer? We cant find anywhere to either just print a check and pick a customer, or where to do so from a credit note.
    • Notebook

      I have purchased the monthly pro subscription of Notebook. But it does not support my XP-Pen to write something in it. So it is not useful to me. Hence I am requesting you to help me to discontinue this subscription.
    • Domain Mapping & Image Publishing Issues on Zoho Sites

      Hello, I am facing two issues with my Zoho Sites account: 1. Images not visible after publishing. 2. Domain mapping error: "Domain already exists". I am a paid customer. Please connect me with Live Chat Support or Zoho Assist so I can show my issue
    • Prevent duplicate with custom fields?

      I was wondering something about custom field/custom modules in Zoho Desk. For some reason you can make a custom field mandatory but not unique? For example, if I create a custom module to manage equipment and renewal and make a field serial number no
    • "Is Zoho CRM customer" vs "Is linked with Zoho CRM"

      Recently while building a Flow, I was setting up a Decision action following a Zoho Invoice Fetch record action. There were 2 choices that I had not seen as something I could manually action in Zoho Invoice: "Is Zoho CRM customer" and "Is linked with
    • Two currencies

      More and more I am finding that internattional payments' fees are unpredictable. I would like, on my invoices that are in a foreign currency (eg. USD$ or EUR€) for there to be a GBP£ TOTAL display alongside the invoice's currency total. This would make
    • Automatic Matching from Bank Statements / Feeds

      Is it possible to have transactions from a feed or bank statement automatically match when certain criteria are met? My use case, which is pretty broadly applicable, is e-commerce transactions for merchant services accounts (clearing accounts). In these
    • Generate leads from instagram

      hello i have question. If connect instagram using zoho social, it is possible to get lead from instagram? example if someone send me direct message or comment on my post and then they generate to lead
    • Where is the desktop app for Zoho Projects???

      As a project manager, I need a desktop app for the projects I manage. Yes, there's the web app, which is AWESOME for cross browser and platform compatibility... but I need a real desktop app for Projects that allow me to enter offline information where
    • How to Automate Monthly PDF Reports with Filters in Zoho Creator

      Hi everyone, I’m trying to build an automated monthly reporting process in Zoho Creator and would appreciate suggestions or best practices from anyone who has done something similar. What I’m trying to do: I have a form called New_Customer with fields
    • Feedback: Streamlining Note Management in Zoho Notebook

      Dear Team/Support, I would like to share some feedback regarding the note management system that could help improve usability and accessibility for users like myself. Notebook 1 (screenshot attached): Currently, the system does not allow selecting and
    • showing Limit exceeded

      Good afternoon...trust you're good. I've been having issues working with but it's not responding. it's showing Limit exceeded, sorry it seems like too many people are working on the sheet right now please try again later. meanwhile no one is working on
    • Sorting columns in Zoho Projects

      Hi, In project management best practice, sorting columns (ascending, descending) is an important tool. Sorting dates to see the order of tasks starting, sorting on priority or even on planned hours is a must for an efficient project control. Currently,
    • Upload API

      I'm trying to use the Upload API to upload some images and attach them to comments (https://desk.zoho.com/DeskAPIDocument#Uploads#Uploads_Uploadfile) - however I can only ever get a 401 or bad request back. I'm using an OAuth token with the Desk.tickets.ALL
    • Losing description after merging tickets

      Hello, We merge tickets when they are about the same topic from the same client. It happens sometimes. We recently noticed that after the merger only the description from the master ticket is left in a thread. And the slave-ticket description is erased.
    • update linked contacts when update happens in account

      Hi, I have a custom field called Licence in the Accounts module. When someone buys a licence, I’d like to update a custom field in the related Contacts. How can I achieve this? I noticed that workflows triggered on Accounts only allow me to update fields
    • Next Page