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 #198: Using Client Script for Custom Validation in Blueprint

      Nearing 200th Kaizen Post – 1 More to the Big Two-Oh-Oh! Do you have any questions, suggestions, or topics you would like us to cover in future posts? Your insights and suggestions help us shape future content and make this series better for everyone.

    • Kaizen #226: Using ZRC in Client Script

      Hello everyone! Welcome to another week of Kaizen. In today's post, lets see what is ZRC (Zoho Request Client) and how we can use ZRC methods in Client Script to get inputs from a Salesperson and update the Lead status with a single button click. In this

    • 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

    • Recent Topics

    • CRM->INVENTORY, sync products as composite items

      We have a product team working in the CRM, as it’s more convenient than using Books or Inventory—especially with features like Blueprints being available. Once a product reaches a certain stage, it needs to become visible in Inventory. To achieve this,

    • Add an option to disable ZIA suggestions

      Currently, ZIA in Zoho Inventory automatically provides suggestions, such as sending order confirmation emails. However, there is no way to disable this feature. In our case, orders are automatically created by customers, and we’ve built a custom workflow

    • What's new in Zoho Sheet: Simplify data entry and collaboration

      Hello, Zoho Sheet community! Last year, our team was focused on research and development so we could deliver updates that enhance your spreadsheet experience. This year, we’re excited to deliver those enhancements—but we'll be rolling them out incrementally

    • Zoho Desk API - Send Reply to CUSTOMERPORTAL

      Hello! I'll try to send a reply to Customer Portal, But the response is 500 (INTERNAL_SERVER_ERROR in service response). {"Error":"{\"errorCode\":\"INTERNAL_SERVER_ERROR\",\"message\":\"An internal server error occurred while performing this operation.\"}"}

    • validation rules doesn't work in Blueprint when it is validated using function?

      I have tried to create a validation rule in the deal module. it works if I try to create a deal manually or if I try to update the empty field inside a deal. but when I try to update the field via the blueprint mandatory field, it seems the validation

    • Zoho Creator Developer Console | Improved Distribution and Lifecycle Management for apps

      Hello everyone, We're excited to introduce new enhancements now in the Zoho Creator Developer Console. These updates strengthen private app distribution through licensing controls and extend environment support across all installed apps, helping teams

    • CRM gets location smart with the all new Map View: visualize records, locate records within any radius, and more

      Hello all, We've introduced a new way to work with location data in Zoho CRM: the Map View. Instead of scrolling through endless lists, your records now appear as pins on a map. Built on top of the all-new address field and powered by Mappls (MapMyIndia),

    • WhatsApp IM in Zoho Desk always routes to Admin instead of assigned agent

      Hello Zoho Experts, I connected WhatsApp IM to my Zoho Desk account. I only assigned my Customer Service (CS) agent to the WhatsApp channel, and I did NOT include Admin in this channel. However, every new WhatsApp conversation automatically gets assigned

    • Zoho CRM for Everyone's NextGen UI Gets an Upgrade

      Hello Everyone We've made improvements to Zoho CRM for Everyone's Nextgen UI. These changes are the result of valuable feedback from you where we’ve focused on improving usability, providing wider screen space, and making navigation smoother so everything

    • [Webinar] Solving business challenges- Handling the challenge of transitioning to Zoho Writer from legacy tools

      Moving to Zoho Writer is a great way to consolidate your business tools and become more agile. With multiple accessibility modes, no-code automation, and extensive integration with business apps and content platforms, Zoho Writer helps solve your organization's

    • hide resolution from help centre

      to my surprise, i just found out that the resolution text is public in the helpcenter, even if 'notify customer' is off. is there a workaround to that? how do others deal with this? How zoho support does this and I don't think its used by Zoho in the first place. the resolution is meant to be private, not public

    • Feature Request - Gift Cards or Gift Voucher Capability in Zoho Commerce

      Hi Zoho Commerce team, I'm comming accross more and more retail businesses who sell gift cards. As there is currently no way to manage this in Zoho Commerce, it is a blocker to addoption. This is particularly popular in Europe and North America. I recently

    • Highlight a candidate who is "off limits"

      Hello: Is there a way to highlight a candidate who is "off limits"?  I would like to have the ability to make certain candidate and / or Client records highlighted in RED or something like that.   This would be used for example when we may have placed a candidate somewhere and we want everyone in our company to quickly and easily see that they are off limits.  The same would apply when we want to put a client or former client off limits so no one recruits out of there. How can this be done? Cheers,

    • Closing off tasks automatically based on project status

      Is there a way to close off all open tasks when a project is set as Cancelled?

    • CRM x WorkDrive: File storage for new CRM signups is now powered by WorkDrive

      Availability Editions: All DCs: All Release plan: Released for new signups in all DCs. It will be enabled for existing users in a phased manner in the upcoming months. Help documentation: Documents in Zoho CRM Manage folders in Documents tab Manage files

    • [Free webinar] Understanding connections and datasources in Zoho Creator - Creator Tech Connect

      Hello everyone, We’re excited to invite you to another edition of the Creator Tech Connect webinar. About Creator Tech Connect The Creator Tech Connect series is a free monthly webinar featuring in-depth technical sessions designed for developers, administrators,

    • Bridge the Gap Between your Service and Finance Teams

      In field service, the most expensive distance isn’t the drive to a customer’s home—it’s the gap between a finished job and a paid invoice. Zoho FSM leverages the power of Zoho Invoice to handle and manage billing operations. It enables you to: Instantly

    • Direct URL to "View Record"

      I would like to create a button (Deluge Script) to jump to the "view record" without passing by the record menu, but I can not aford to find the right url. I don't want the "view record" as a single page. I want the "view record" in the application like the picture below: Thanks in advance for your help

    • Live Chat for user

      Hi everyone, I’m new to Zoho Creator and wanted to ask if it’s possible to add a live chat option for all logged-in portal users so they can chat internally. I’m trying to create a customer portal similar to a service desk, but for vehicle breakdowns,

    • SalesIQ Chat Owner to CRM Lead Owner Mapping

      There is no proper mapping between the SalesIQ chat owner and the CRM lead owner. When a chat is assigned to an agent, the lead created in CRM is often assigned to a different user, forcing admins to manually change ownership every time. This creates

    • Does zoho inventory need Enterprise or Premium subsrciption to make Widgets.

      We have Zoho One Enterprise and yet we can't create widgets on inventory.

    • Product line search in quotes

      Is there a way to change the search setting when you add a product line to a quote. We have created a field in products called 'Part Number' and I would like when I'm adding a product line to the quote that I can search on that field. At the moment it only searches on product description. In products I can search on the 'Part Number' field Any help welcome.

    • Invoice status on write-off is "Paid" - how do I change this to "Written off"

      HI guys, I want to write off a couple of outstanding invoices, but when I do this, the status of the invoices shows as "Paid". Clearly this is not the case and I need to be able to see that they are written off in the customer's history. Is there a way

    • 🚀 WorkDrive 6.0 (Phase 1): Empowering Teams with Content Intelligence, Automation, Accessibility, and Control

      Hello, everyone! WorkDrive continues to evolve from a robust file management solution into an intelligent, secure, and connected content collaboration platform for modern businesses. Our goal remains unchanged: to simplify teamwork, strengthen data security,

    • Storage Limits

      Hello, What is the storage limitations for each user on professional edition?  Thanks, Mekki

    • Optimum CRM setup for new B2B business

      Can some advise the most common way to setup Zoho CRM to handle sales for a B2B company? Specifically in how to handle inbound/outbound emails. I have spent hours researching online and can't seem to find an accepted approach, or even a tutorial. I have

    • Dheeraj Sudan and Meenu Hinduja-How do I customize Zoho apps to suit my needs?

      Hi Everyone, I'm Meenu Hinduja and my husband Dheeraj Sudan, run a business. I’m looking to tweak a few things to fit my needs, and I’d love to hear what customizations others have done. Any tips or examples would be super helpful! Regards Dheeraj Sudan

    • Important Update: Google Ads & YouTube Ads API Migration

      To maintain platform performance and align with Google's newest requirements, we are updating the Google Ads and YouTube Ads integrations by migrating from API v19 to the newer v22, before the official deprecation of v19 on February 11, 2026. Reference:

    • Zoho Recruit Community Meetup - London 🇬🇧

      Hello Recruiters! We’re excited to announce that the Zoho Recruit team is coming to the UK for an in-person Zoho User Group (ZUG) Meetup in London! This is your chance to connect with fellow Zoho users, learn from experts, and walk away with actionable

    • Power Pivot and Data Modeling functionality in Zoho Sheet

      When will MS Excel functionalities like Power Pivot and Data Modeling functionalities be available in Zoho Sheet?

    • Sender Email Configuration Error.

      Hello Team, Hope you are all doing well. We are in the process of creating the Zoho FSM environment in the UAE. When we try to add the sender email address “techsupportuae@stryker.com”, we receive the error message: “Error occurred while sending mail

    • Canvas View bug

      I would like to report a bug. When clone a canvas view from an existing canvas view, if the original canvas view have canvas button with client script. Then the new create canvas view will have canvas button, it is make sense. But when I try to delete

    • Global Search placement in the new UI

      Having a hard time with the global search placement in the UI redesign. Surely I can't be the only one. Previously global search placement was perfect. A bar at the top/center of the page. Exactly where you would expect it to be. Since the new UI has

    • What's New - January 2026 | Zoho Backstage

      Welcome to 2026! If you thought last year was big, buckle up. We’re stepping into this year with a singular focus: unimaginable growth, elite scalability, and performance benchmarks that leave the old ways of event management in the rearview mirror. As

    • Cliq on your mobile phone

      Some of the employees in my company get their cliq on their mobile phones but it will not let them answer the call. The employee has to go to their laptop to access it. 

    • Scheduled sending of a poll and its results

      Is there a way to schedule sending a poll to all my users and have the results sent separately to the team?

    • Bulk Delete Messages in Cliq

      Isn't it possible to bulk delete messages in Cliq? I have them delivered to me as notifications from another service but most of them need to be deleted as not of value. I get dozens of them per day, and deleting them is already difficult is the "Delete"

    • stock movement report by each transaction for each item

      Dear Sir we are using zoho inventory for foodstuff and we lack the transaction report which clearly shows movement of an item from Opening balance of the month to Goods received in, Supplier return out, Invoice out, Sales return In, Transfer out and Transfer

    • Select the task view on the board in the Zoho Connect iPhone app

      Hello. How do I select the task view on the board in the Zoho Connect iPhone app? The Android app has this functionality.

    • Unable to change Company Logo

      Hi Guys, I have an issue where I've uploaded a Company image in Gif format and the logo has now got a black background whereas the logo is supposed to be black not the background. I didn't think it would be an issue so I created a PNG version to upload

    • Next Page