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

    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

                                                          • 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


                                                          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

                                                                                                            • This user is not allowed to add in Zoho. Please contact support-as@zohocorp.com for further details

                                                                                                              Hello, Just signed up to ZOHO on a friend's recommendation. Got the TXT part (verified my domain), but whenever I try to add ANY user, I get the error: This user is not allowed to add in Zoho. Please contact support-as@zohocorp.com for further details I have emailed as well and writing here as well because when I searched, I saw many people faced the same issue and instead of email, they got a faster response here. My domain is: raisingreaderspk . com Hope this can be resolved.  Thank you
                                                                                                            • create-a-purchase-receive API issues

                                                                                                              Hello all, I'm trying to use the create a purchase receive inventory API documented here (https://www.zoho.com/inventory/api/v1/purchasereceives/#create-a-purchase-receive) however when I do am getting the following error {"code":9,"message":"The purchase
                                                                                                            • Zoho Pagesense really this slow??? 5s delay...

                                                                                                              I put the pagesense on my website (hosted by webflow and fast) and it caused a 5s delay to load. do other people face similar delays?
                                                                                                            • Heatmap: Missing Content Elements - Zoho Page Sense

                                                                                                              Hi there, I'm trying out Zoho Page Sense to generate heatmaps for my Wix pages. My problem: Some parts of my Wix pages don't show on my heatmap, the heatmap is just empty there. Maybe Wix default lazy loading setting causes this error? Is there a way
                                                                                                            • Marketing Tip #3: Use social proof to build trust

                                                                                                              People trust people. Showcasing reviews, testimonials, or “bestseller” badges on your product pages can nudge hesitant buyers toward purchase. Try this today: Add one customer testimonial or highlight your top-selling product on your homepage. Or, do
                                                                                                            • Writing by Hand in "Write" Notes

                                                                                                              Hi there! I just downloaded this app a few moments ago, and I was wondering if there was a way to write things by hand in "Write" mode instead of just typing in the keyboard. It would make things a bit more efficient for me in this moment. Thanks!
                                                                                                            • Make CAMPAIGNS email look as simple as possible

                                                                                                              Hi there I'm trying to make my Campaigns email look as much like a normal email as possible. I'm a bit stuck with the "justification" of the email email block. Can I LEFT JUSTIFY the "whole email" to make it look "normal"? (Please see screenshot attached)
                                                                                                            • Zoho Sign Reminder email template

                                                                                                              Is there a template we can edit for the reminder emails? I don't see it in Settings / Choose a template
                                                                                                            • Preview an upload PDF or File

                                                                                                              I have a form where the customer has to upload a file (normally PDF - never jpeg)  When in report view I want to be able to preview the uploaded file without having to download it.  If I click on the upload it downloads to my computer, I want to be able
                                                                                                            • How to filter emails by Reply-to field?

                                                                                                              I receive a very particular newsletter from an association A registered on a website W (that is used by many associations), and the emails fields are not great: the From just contains the generic website's W's email, while A is only mentioned in the Reply-to
                                                                                                            • How to invite friends on other social media platforms to one of my group chats in arattai?

                                                                                                              Hello, I have formed chat groups in arattai. I want to invite my friends on other social media platforms like WhatsApp/ FB to one of my groups. Different friends would be invited to different groups. How to share an invite link of one of my groups to
                                                                                                            • Line spacing

                                                                                                              I coudn't decrease the line spacing to space smaller then a single line. There is too much space between the lines that make the document look ugly. Please fix that. Liran. fonar
                                                                                                            • Google Fonts Integration in Pagesense Popup Editor

                                                                                                              Hello Zoho Pagesense Team, We hope you're doing well. We’d like to submit a feature request to enhance Zoho Pagesense’s popup editor with Google Fonts support. Current Limitation: Currently, Pagesense offers a limited set of default fonts. Google Fonts
                                                                                                            • Control Position of “X” (Close) Button in Popup Editor

                                                                                                              Hello Zoho PageSense Team, We hope you're doing well. We would like to request a customization improvement in the PageSense popup editor. Current Limitation: Currently, the position of the “X” (close) button is fixed and cannot be customized in the popup
                                                                                                            • Add Standalone “Save” Button in Pagesense Popup Editor

                                                                                                              Hello Zoho Pagesense Team, We hope you're doing well. We would like to request an important usability improvement in the Pagesense popup editor. Current Limitation: There is currently no dedicated Save button while building a popup. The only way to save
                                                                                                            • Text Direction Control in Pagesense Popup Editor

                                                                                                              Hello Zoho Pagesense Team, We hope you're doing well. We’d like to submit a feature request to add text direction control in the Pagesense popup editor. Current Limitation: Currently, the popup editor does not provide native support for RTL (Right-to-Left)
                                                                                                            • Autosave in Pagesense Popup Editor

                                                                                                              Hello Zoho Pagesense Team, We hope you're doing well. We’d like to submit a feature request to enhance the Pagesense editor with an autosave functionality. Current Limitation: Currently, changes made in the Pagesense editor must be manually saved. In
                                                                                                            • Billing frequency is not displayed correctly.

                                                                                                              Hello There is an issue while displaying the billing frequency on a subscription quote. I am able to activate the subscription details and get this lovely overview: If I am adding a Plan which I charge quarterly, first of all it should be possible to
                                                                                                            • Creating Secret via Vault API

                                                                                                              Hi I am trying to create a secret through vault api.  This is the response I get. One thing I am not sure is how to decrypt the secretdata, how to get the secrettypeid? {     "operation": {         "result": {             "error_code": "",             "message": "Sorry, we are unable to process your request.",
                                                                                                            • Is It Possible to Hide Menu Option from Main Navigation?

                                                                                                              Is it possible to hide a menu option, e.g. Admin, from the Main Navigation based on some criteria, e.g. login = zoho.adminuser
                                                                                                            • Unleash the power of detail, with Table View.

                                                                                                              What use is context that's not available where you need it? With this in mind, we bring you the Table View. This feature will add more power to the way you organize and work through your ticket load. Table View comes in handy when you want more control over the ticket information you see. This is a nifty tool for users who find themselves limited in terms of the level of information that is being offered in the Classic View and Compact View. With an upper limit of 15 columns, agents can glean most
                                                                                                            • Kaizen #126 - Circuits in Zoho CRM - Part 1

                                                                                                              Hello everyone! Welcome back to another week of Kaizen! Today, we will discuss an exciting topic—Circuits in Zoho CRM. For starters, we will discuss what Circuits are, how beneficial they are for businesses, different views of a Circuit, and the different
                                                                                                            • 'Statement of Accounts does not exist' error received, when creating PO using api in Zoho Inventory

                                                                                                              Here is request json -- JSONString = { "date": "2019-09-24", "purchaseorder_number": "PO-6-1", "delivery_date": null, "delivery_org_address_id": 36221200000056XXX, "vendor_id": 362212000000564XXX, "attention": "Testing", "line_items": [{ "unit": "Pieces", "account_id": 36221200000003XXX, "quantity": 1, "item_id": 362212000000049XXX, "tax_type": "", "tax_name": "", "name": "One HD", "purchase_rate": 85, "tax_percentage": 0, "item_total": 85.00, "tax_id": "", "warehouse_id": 362212000000564XXX }] }
                                                                                                            • Multiple clients in one project

                                                                                                              Hi team, What is the possibility to have more than one client to be linked for one project in the Zoho Books? Our business model is to have a project, and this project have expenses/bills, as well, we issue invoices for this same project to several customers.
                                                                                                            • I can receive but not send emails

                                                                                                              Hello, I've been not able to send emails for almost a year now. I been using alternate email to do this. I want to know how to fix this so I can use my zoho account normally again.
                                                                                                            • Workdrive 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. Emma
                                                                                                            • Clients not receiving emails

                                                                                                              I've been informed that my emails are not being received. Is there anything that I should look into to rectify this? Many thanks!
                                                                                                            • Rendering PDF to view on page

                                                                                                              My company upload lots of PDF files onto Zoho. But every time we open it, it downloads the file instead of viewing it on the web page. Does Zoho allow uploaded PDF files to be rendered to view on web page yet? I've been trying to use <embed> or <object> but it cannot be loaded.  (similar thread: https://help.zoho.com/portal/community/topic/how-to-open-a-pdf-file-of-a-view-in-preview-mode)
                                                                                                            • Dynamically Fetching Lookup Field Display Value

                                                                                                              I have an audit trail form, Audit_Changes, that tracks old vs new values across different forms. For lookup fields, the old/new value is the ID, but I also need the display value. What's a best practice for dynamically fetching the display value of the
                                                                                                            • Zoho Toolkit Email Signature Generator

                                                                                                              I'm having real issues with the email signature generator with no matter where I host the photo, Zoho doesn't seem to show the photo on the link provided?
                                                                                                            • Ability to Create New Items When Zoho Trident is Minimized via tray or taskbar icon

                                                                                                              Allow users to create new items (emails, calendar events, tasks, etc.) directly from the system tray icon or by right clicking the task bar icon, even when the window is minimized or not actively running in the foreground. This enables quick access to
                                                                                                            • I can not see Undeliverable emails from my Mass Email Leads activity in CRM

                                                                                                              I am sending email templates and I can not see the Undeliverables? I only receive the "Out of Office" replies and any manual replies from the lead. Can you please let me know where the Undeliverable emails are sent so I can use the information to clean up the database?
                                                                                                            • Select Zoho Contacts as Meeting Participants in Zoho Cliq

                                                                                                              Hello Zoho Cliq Team, We hope you're doing well. We would like to request an enhancement to the meeting scheduling functionality in Zoho Cliq. Current Limitation: When scheduling a meeting in Zoho Cliq, participants can only be selected from: Organization
                                                                                                            • Ability to Select External Users from Participants List When Scheduling Meetings

                                                                                                              Hello Zoho Cliq Team, We hope you're doing well. We would like to request an enhancement to the meeting scheduling experience in Zoho Cliq. Current Limitation when scheduling a meeting in Zoho Cliq: External users can be selected from the list only under
                                                                                                            • Kaizen #212 - Map Dependency Fields in Zoho CRM using APIs

                                                                                                              Hi Everyone!! Welcome back to another week of Kaizen series! Over the past few weeks, we have been addressing your questions and feedback shared through our Kaizen 200th feedback form. Thank you for your continued engagement and thoughtful queries. We
                                                                                                            • Outdated state in mexico

                                                                                                              Hello Zoho team, the drop down to add the state for customers, when they introduce their state in mexico has a city named “Distrito Federal” that name changed many years ago to “ciudad de mexico”. could you please update this so my clients can find the
                                                                                                            • Is anyone using Zoho Flow with airtable?

                                                                                                              I need to build a flow that collects data from airtable and uses some of that data to create folders and files in google drive. I have fully function version of this in zapier and want to migrate to zoho. I am trying to perform a very basic fetch from
                                                                                                            • AI in Zoho Workplace: A Sneak Peek into What’s Coming!

                                                                                                              Hello everyone, We’re super excited to share something we’ve been working on and we want you to be part of it! You may have seen our announcement blog post introducing a major evolution in how AI works within Zoho Workplace. Want to be among the first
                                                                                                            • Meet Canvas' Grid component: Your easiest way to build responsive record templates

                                                                                                              Visual design can be exciting—until you're knee-deep in the details. Whether it's aligning text boxes to prevent overlaps, fixing negative space, or simply making sure the right data stands out, just ironing out inconsistencies takes a lot of moving parts.
                                                                                                            • Best way to share/download presentation files in Zoho without losing formatting?

                                                                                                              Hello Zoho Community, I often work with PPT/PDF files in Zoho Docs and share them with colleagues. While PDFs usually give a direct download option, I’ve noticed that PPT/PPTX files sometimes only open in the viewer without a clear download link. Is there
                                                                                                            • Next Page