Kaizen #200 - Answering Your Questions | Authentication using Zoho CRM Python SDK

Kaizen #200 - Answering Your Questions | Authentication using Zoho CRM Python SDK



We’re incredibly excited to bring you the 200th post in our Kaizen series!

Idea
This journey has been as much about listening as it has been about sharing. And today, we’re making both count. Over the past few weeks, we’ve collected your feedback through the Kaizen feedback form added in our earlier posts. Thank you for the time and thought you’ve put into it.

Starting today, we’ll be actively addressing your most requested topics. 

Overview – OAuth 2.0 and Zoho CRM SDKs

In this Kaizen, we’ll walk you through how OAuth 2.0 authentication is handled using the Zoho CRM Python SDK, and how the SDK simplifies token refresh, storage, and management for multiple users and organizations across multiple data centers.

Introduction:


OAuth2.0 Recap:



Token Management using Zoho CRM SDKs:


Sample Project Overview

We’ve used a fully working sample project to demonstrate the OAuth flow in action.

Frontend

A static interface built using HTML, CSS, and JavaScript.
Files include:
  • index.html – login and data input page
  • script.js – client-side login and record handling
  • redirect.html – used to capture the grant token from Zoho

Backend

A Python server using Zoho CRM SDK to:
  • Authenticate users using OAuth 2.0
  • Store and manage tokens
  • Fetch and manipulate CRM records

Note:

Before running the project, you’ll need to register your client in the Zoho API Console. Once registered, use the generated Client ID and Client Secret in your server code.
If you're planning to support users across multiple Zoho Data Centers (DCs):
  • Be sure to enable Multi-DC for your client.
  • Use the same client credentials (Client ID and Secret) for all the DCs during authentication.

Implementation Demo:

How the SDK Maps Tokens to Users

One of the key challenges in multi-user apps is ensuring that each user's tokens are stored and retrieved correctly. The Zoho CRM Python SDK handles this automatically.
As part of the OAuth flow, the SDK retrieves the user's email and organization info in the background using the scopes ZohoCRM.users.READ and ZohoCRM.org.READ. It then uses this unique user–org combination to:
  • Store access and refresh tokens separately for each user
  • Automatically update tokens when a user logs in again
  • Ensure that all API calls are authorized with the correct tokens
If you're implementing Login with Zoho using the standard OAuth redirect flow, all of this is handled internally by the SDK using the user and org information retrieved during login. There’s no need to manually pass a UserSignature in the token object.
 
If you're not implementing Login with Zoho, or if you’d prefer to explicitly associate a token with a known user, you can pass a UserSignature object during initialization:
  1. from zohocrmsdk.src.com.zoho.api.authenticator import UserSignature

    user = UserSignature(email)
    token = OAuthToken(..., user_signature=user)
    Initializer.initialize(..., user=user)
This ensures the SDK can correctly identify the token's owner and separate tokens for different users or orgs in a multi-user application.

Multi-User & Multi-DC Token Management


Authentication can often be one of the trickiest parts of any integration, especially when you're dealing with multiple users, environments, and token refresh cycles. With the Zoho CRM SDKs, much of that complexity is handled for you, from generating and persisting tokens, to refreshing them silently when they expire, and managing user-org mappings behind the scenes.

We hope this Kaizen gave you a clearer picture of how to use our SDKs confidently in your apps. Try out the project, play around, and see how it all works in real time. 

If you have any queries, let us know the comments below, or send an email to support@zohocrm.com. We'd love to hear from you.


    • Sticky Posts

    • Kaizen #222 - Client Script Support for Notes Related List

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

    • Kaizen #217 - Actions APIs : Tasks

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

    • Kaizen #216 - Actions APIs : Email Notifications

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

    • Kaizen #152 - Client Script Support for the new Canvas Record Forms

      Hello everyone! Have you ever wanted to trigger actions on click of a canvas button, icon, or text mandatory forms in Create/Edit and Clone Pages? Have you ever wanted to control how elements behave on the new Canvas Record Forms? This can be achieved

    • Kaizen #142: How to Navigate to Another Page in Zoho CRM using Client Script

      Hello everyone! Welcome back to another exciting Kaizen post. In this post, let us see how you can you navigate to different Pages using Client Script. In this Kaizen post, Need to Navigate to different Pages Client Script ZDKs related to navigation A.

    • Recent Topics

    • Zoho Browser??

      hai guys, this sounds awkward but can v get a ZOHO BROWSER same as zoho writer, etc. where i can browse websites @ home and continue browsing the same websites @ my office, as v have the option in Firefox, once i save and close the browser and again when i open it i will be getting the same sites. If u people r not clear with my explanation, plz let me know. Thanks, Sandeep  

    • Task/Activity indicator in SalesPipeline overview has disappeared

      I Just logged in my ZOHO CRM first 2026 checking my salespipeline overview , Every record card used to show an indication that there was an open task (Yellow if the expiry date was close, red if the expiry date was today and grey when it had expired).

    • SMS to customers from within Bigin

      Hi All, Is there anyone else crying out for Bigin SMS capability to send an SMS to customers directly from the Bigin interface? We have inbuilt telephony already with call recordings which works well. What's lacking is the ability to send and receive

    • No OR Filter for Views with a Related Modules Criteria

      We would like to create a Deal View where the User can see all their deals. For that, we would need an OR to connect the criteria. One of the Fields is a "multiselect User", these (Related Modules Criteria) can only be Filter with an AND. Even between

    • Admins cannot see each others' Scheduled Reports?!

      Very frustrating that as an admin I cannot see what my reports my fellow admins have created and scheduled.  After asking about this on the help chat, I was told the issue is trust and security.  By giving someone Admin status, it means we trust them with those responsibilities. Please change this, it is not a good process to have to bother other users to change a report or change users within a report.

    • Automatically CC an address using Zoho CRM Email Templates

      Hi all - have searched but can't see a definitive answer. We have built multiple email templates in CRM. Every time we send this we want it to CC a particular address (the same address for every email sent) so that it populates the reply back into our

    • Writer update results in BitDefender blocking it as malware

      After updating Writer to latest update, Bitdefender blocked the app and writer no longer runs.

    • Is there a way to invoke deluge function from within a widget?

      Hi! I have custom functions in deluge and I was wondering whether there is any way to call this function through a widget? Something like on click of a button inside a widget, run the deluge custom function. Would this be possible?

    • Missing Import Options

      Hello, do I miss something or is there no space import option inside of this application? In ClickUp, you can import from every common application. We don't want to go through every page and export them one by one. That wastes time. We want to centralize

    • Zoho CRM Portal Field Level Permission Issue

      Hi Support Team, I am using the Zoho CRM Portal and configuring field-level editing permissions. However, we are unable to restrict portal users from editing certain fields. We have created a portal and provided View and Edit (Shared Only) access for

    • Why am I seeing deleted records in Zoho Analytics syncing with Zoho CRM?

      I have done a data sync between Zoho CRM and Zoho Analytics, and the recycle bin is empty. Why do I see deleted leads/deals/contacts in Zoho Analytics if it doesn't exist in Zoho CRM? How can I solve this problem? Thanks

    • Zoho Tables is now live in Australia & New Zealand!

      Hey everyone! We’ve got some great news to share — Zoho Tables is now officially available in the Australian Data Center serving users across Australia and New Zealand regions! Yes, it took us a bit longer to get here, but this version of Zoho Tables

    • Custom Fonts in Zoho CRM Template Builder

      Hi, I am currently creating a new template for our quotes using the Zoho CRM template builder. However, I noticed that there is no option to add custom fonts to the template builder. It would greatly enhance the flexibility and branding capabilities if

    • Introducing the Zoho Projects Learning Space

      Every product has its learning curve, and sometimes having a guided path makes the learning experience smoother. With that goal, we introduce a dedicated learning space for Zoho Projects, a platform where you can explore lessons, learn at your own pace,

    • All new Address Field in Zoho CRM: maintain structured and accurate address inputs

      The address field will be available exclusively for IN DC users. We'll keep you updated on the DC-specific rollout soon. It's currently available for all new sign-ups and for existing Zoho CRM orgs which are in the Professional edition. Latest update

    • Create PO from an invoice

      We are a hardware and software sales company which receives orders over the internet. We drop ship most of our products from a warehouse outside of our company. Our orders get sync'd into Zoho from our store via onesaas as invoices. It would be great

    • Import Function: ONLY update empty fields

      When setting up an import from a spreadsheet to CRM, there is a checkbox "Don't update empty values for existing contacts" (see screenshot below). While I see some limited benefit from this functionality, I think there should also be an "ONLY update empty

    • Collaboration with customers made easy with Zoom Meeting and Zoho Desk integration

      Hello everyone! We are happy to announce that you can now integrate your Zoho Desk account with Zoom Meeting. The integration bridges the gap between digital communication and human connection, empowering teams to deliver timely support when it matters

    • CRM Canvas - Upload Attachments

      I am in the process of changing my screens to Canvas.  On one screen, I have tabs with related lists, one of which is attachments.  There doesn't appear to be a way to upload documents though.  Am I missing something really obvious?  Does anyone have

    • TrueSync regularly filling up my local disk

      Seems that WorkDrive's TrueSync randomly starts filling up my local hard drive space. None of the folders have been set as "Make Offline" but still it seems to randomly start making file offline. The settings of the app is so minimal and is of no real

    • Kaizen #194 : Trigger Client Script via Custom buttons

      Hello everyone! Welcome back to another interesting and useful Kaizen post. We know that Client Scripts can be triggered with Canvas buttons and we discussed this with a use case in Kaizen#180. Today, let us discuss how to trigger Client Script when a

    • [Webinar] A recap of Zoho Writer in 2025

      Hi Zoho Writer users, We're excited to announce Zoho Writer's webinar for January 2026: A recap of Zoho Writer in 2025. This webinar will provide a recap of the features and enhancements we added in 2025 to enhance your productivity. Choose your preferred

    • Picklist field shows "none" as default

      Hello, Is there an option to avoid showing "none" as the default value in a picklist field? I also don't want to see any option displayed. My expectation is to have a blank bar, and then when I display the drop-down list, I can choose whichever I wa

    • Stage-probability mapping feature in custom module

      Hi, I'm building a custom module for manage projects. I would like to implement the stage-probability feature that Potentials has. Is this possible?

    • 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 couple

    • Field Description is very small

      Hello, The field Description in the activity is very small. Why don't try open a new window, or a bigger popup, or increase the width of the "popup". Example:

    • StatusIQ

      Please add StatusIQ to data sources. We using site24x7 and StatusIQ together and site24x7 integration is already there. Thanks and regards, Torsten

    • In Zoho People, the Operations buttons are frequently not visible or do not appear consistently.

      In Zoho People, the Operations buttons are frequently not visible or do not appear consistently. We request you to please investigate and address this issue, as it is affecting daily HR operations and user access.

    • Marketing Tip #14: Increase cart value with product bundles

      Bundling products is a great way to increase average order value while giving customers more convenience. Think “camera + tripod + memory card” or “soap + lotion + bath salts.” Bundles make shopping easier and feel like a better deal. It’s a win-win for

    • Problem with Workdrive folders

      I'm having a problem a problem accessing files in a Zoho work drive folder when using the Zoho writer app. The problem folder appears grayed out in the Zoho work drive window in both the online and writer application. However I can open the folder in

    • Sortie de Zoho TABLE ??

      Bonjour, Depuis bientôt 2 ans l'application zoho table est sortie en dehors de l'UE ? Depuis un an elle est annoncée en Europe Mais en vrai, c'est pour quand exactement ??

    • Add RTL and Hebrew Support for Candidate Portal (and Other Zoho Recruit Portals)

      Dear Zoho Recruit Team, I hope you're doing well. We would like to request the ability to set the Candidate Portal to be Right-to-Left (RTL) and in Hebrew, similar to the existing functionality for the Career Site. Currently, when we set the Career Site

    • Auto tracking URL generation based on Carrier

      Hi, While creating a shipment order for a package in Zoho Books, I have a requirement that for example, if the carrier is Delhivery and tracking number is 1234, then can automatically the tracking link/URL be generated as www.delhivery.com/1234. Similary,

    • Helper Functions and DRY principle

      Hello everyone, I believe Deluge should be able to use 'Helper functions' inside the main function. I know I can create different standalones, but this is not helpful and confusing. I don't want 10000 different standalones, and I dont want to have to

    • Pre-orders at Zoho Commerce

      We plan to have regular producs that are avaliable for purchase now and we plan to have products that will be avaliable in 2-4 weeks. How we can take the pre-orders for these products? We need to take the money for the product now, but the delivery will

    • Customer ticket creation via Microsoft Teams

      Hi all, I'm looking to see if someone could point me in the right direction. I'd love to make it so my customers/ end users can make tickets, see responses and respond within microsoft teams. As Admin and an Agent i've installed the zoho assist app within

    • Zoho Books' 2025 Wrapped

      Before we turn the page to a new year, it’s time to revisit the updates that made financial management simpler and more intuitive. This annual roundup brings together the most impactful features and enhancements we delivered in 2025, offering a clear

    • Can multiple agents be assigned to one ticket on purpose?

      Is it possible to assign one ticket to two or more agents at a time? I would like the option to have multiple people working on one ticket so that the same ticket is viewable for those agents on their list of pending tickets. Is something like this currently

    • Zoho removed ability to see all Scheduled Reports!

      If you are not the owner of a scheduled report, Zoho recently removed the capability to see each scheduled report. As an admin who relies on seeing all scheduled reports being sent, this is a terrible update. Now I cannot see ANY scheduled reports...even the ones I am being sent!!  This should be a setting for admins to control.  This is a bad update.

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

      Hi Team, when I,m trying to create a email account (imagixmidia.com.br) it's showing this error >>  This user is not allowed to add in Zoho. Please contact support-as@zohocorp.com for further details plz help me  thanks

    • Next Page