Kaizen 200 - OAuth and Token Management using Zoho CRM Python SDK

Kaizen 200 - OAuth and Token Management 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 #197: Frequently Asked Questions on GraphQL APIs

      🎊 Nearing 200th Kaizen Post – We want to hear from you! 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 #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.

    • Celebrating 200 posts of Kaizen! Share your ideas for the milestone post

      Hello Developers, We launched the Kaizen series in 2019 to share helpful content to support your Zoho CRM development journey. Staying true to its spirit—Kaizen Series: Continuous Improvement for Developer Experience—we've shared everything from FAQs

    • Kaizen #193: Creating different fields in Zoho CRM through API

      🎊 Nearing 200th Kaizen Post – We want to hear from you! 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.

    • Client Script | Update - Introducing Commands in Client Script!

      Have you ever wished you could trigger Client Script from contexts other than just the supported pages and events? Have you ever wanted to leverage the advantage of Client Script at your finger tip? Discover the power of Client Script - Commands! Commands

    • Recent Topics

    • How to parse column having JSON data using SQL?

      We have a daily sync from a PostgreSQL database that brings data into Zoho Analytics. Some of the columns store raw JSON data. We need to build SQL queries on top to parse data from JSON and store them in discrete columns. There is no option for "Data

    • Enable report button based on the current user role

      Greetings  i have a report that contains action buttons, i want these buttons to appear as enabled only when the current logged in user has a certain role, for example only CEO role users will be able to use this button. but when setting the conditions

    • 500 Internal Error In Mail API

      I'm getting 500 Internal Error when using mail API. I'm getting this error for this one account, it works fine for other Account IDs which I have in my system.

    • Piss poor service in Support in Domains and email

      Srijith Narayanan B contacted me today. Very pleasant fellow. Just didn't want to tell him how bad your support service is. You help the person, but you leave before we can finish the next stage. Which causes a lot of frustration. It's been 8 days now

    • Zoho live chat widget in React Js

      I am trying to test Zoho live chat widget code in react js, below is the sample code void(0)} onClick={()=>window.$zoho.salesiq.floatwindow.visible("show")}>LIVE CHAT window.$zoho = window.$zoho || {};window.$zoho.salesiq = window.$zoho.salesiq

    • Are there any plans to add Triggers for Subform edits?

      By The Grace of G-D.  Hi, How are you? Can you tell me if you have any plans to support subform edit as a workflow trigger? And what about have them trigger an "onChange" client script?

    • Zoho commerce

      i am facing issue with order summary emails.i am getting 1 continuous email for order received yesterday and today.ideally 1 email should be received for a particular date ie for 02/08 i should received 1 email from 12.01am till 11.59pm but it is being

    • Feature Request: Improve Category Page Sorting for "Out of Stock" Products

      Hi there, I'm writing to request a new feature that I believe would significantly improve the user experience in my online store. Currently, on category pages, products are sorted by popularity. However, when a popular product goes "Out of Stock," it

    • POSTMAN - There was an error in evaluating the Pre-request Script:Error: Cannot read properties of undefined (reading 'json')

      I am beginning the journey to learn how to use the API for Zoho Sign. I am getting the following error when I try to use postman. To walk you through how I am getting this error... I wanted to start with a simple GET and expand my learning from there.

    • How do i integrate shipstation with zoho inventory

      Wanting to set up my own delivery driver in ship station so we can get real time tracking of where the package is but then i want it to automatically update zoho inventory packages/shipments how can i do this

    • Invalid value passed for salesorder_id

      Hi, I am using sales return API, details are given below: API: https://inventory.zoho.com/api/v1/salesreturns?organization_id=700571811 Post Json Data: { "salesreturn_number": "", "date": "2020-11-12", "reason": "Testing from API", "line_items": [ { "item_id":

    • Create Invoice and Invoice Items from Sales Order via API

      Currently, when creating an Invoice associated with a Sales Order via the API, it appears that I must manually include all of the items (line_items) even though they are already part of the Sales Order. My question is this: is it possible to raise an Invoice via the API based on all of the information associated with a Sales Order--such as the  items? In other words, do I always have to manually include the items (line_items) when raising an Invoice via the API when the Invoice is associated with

    • Outlook 2013 Calendar Syncs but "Related To" Field in Zoho is blank

      Outlook 2013 Calendar Syncs but Related To Field in Zoho is blank I expect the "Realted To" field to be populated with the calendar participants

    • Export a Course

      Is it possible to export a course from Zoho Learn to a SCORM file?

    • Add and Remove Agents from Departments and Groups in Zoho One

      Hi Zoho Flow Team, We hope you're doing well. Currently, Zoho Flow provides an action to add an agent to a group in zoho one, but there is no action to remove an agent from a group or a department. Another action that we find missing is the option to

    • Zoho learn Custom portal - networkurl & CustomPortalId

      I want to get my individual account’s networkurl and customportalId to use in this API: https://learn.zoho.com/learn/api/v1/portal/<networkurl>/customportal/<customportalId>/manual How can I retrieve the networkurl and customportalId using the API? I

    • Consumer Financing

      Does Zoho currently have a payment gateway (such as Stripe, Square, etc) which offers financing for customers? So, let's say the estimate we give the customer is greater than what they can afford at the time, but we can sell the service now, letting them

    • Intégration de la gestion des Passkeys dans Zoho Vault

      Zoho Vault est depuis plus d’une décennie une solution fiable pour les entreprises : pour la gestion, le partage et le stockage des mots de passe. En 2018, nous avons fait un pas en avant en proposant la connexion unique (SSO). Nous sommes fiers de franchir

    • Scan & Fill with double quote key/value pairs

      Hi, An old Ticket moved to a Topic/Idea: I love the idea of the new Scan & Fill as it nearly covers my previous request for a QR Scanner to read a multi-part QR Code. My QR Codes are hard-coded as below: {"key1":"value1","key2":"value2","key3":"value3"}

    • Analytics SQL Queries should allow # as comment

      # and // are very common for commenting in SQL. Not sure why analytics only allows /* and */ for commenting. Especially when # grays the line as if it's being commented out. This should be added for sure.

    • SalesIQ Operator Activity Reports in Zoho Analytics

      I'm busy building a dashboard in Zoho Analytics and I want to include SalesIQ stats in the dashboard, but I'm unable to get the statistics mentioned in the attached image. Any idea where I can get the stats for Operator Activity?

    • Default in fields on Form B based on the user selection in Form A

      Hi Everyone, I have added an action button to a form report to bring up a new form based on user selection, see it indicated in red below: Then when the ne form loads, I want to default in some of the fields based on the record the user was selected on.

    • No longer can indent

      Hey there! Is it just me or were we used to be allowed to used tab or indent when writing. It’s not working right now, has this always been the case?

    • Upcoming Changes to the Timesheet Module

      The Timesheet module will undergo a significant change in the upcoming weeks. To start with, we will be renaming Timesheet module to Time Logs. This update will go live early next week. Significance of this change This change will facilitate our next

    • Free webinar alert! Seamless Transition with Lossless Migration: Zoho One + Zoho Mail

      Hello Zoho Mail Community! 🚀 Attention IT Admins and Email Administrators! Are you planning to migrate your organization's email to Zoho Mail within the Zoho One ecosystem? 📧 Join our exclusive webinar, Seamless Transition with Lossless Migration: Zoho

    • Add Resource to Export

      The Export Data feature does not include a column for the Resource field. Without this column, Zoho Bookings cannot be used by any business for resource-based services or event types e.g. room bookings, equipment bookings. It seems to be an oversight,

    • Client Script | Update - Client Script Support For Custom Buttons

      Hello everyone! We are excited to announce one of the most requested features - Client Script support for Custom Buttons. This enhancement lets you run custom logic on button actions, giving you greater flexibility and control over your user interactions.

    • Mandatory field via deluge code

      I would like to ask you if it is possible to make a field mandatory via deluge script. For example, if I have a decision box and I click on it then I want a single line field to be mandatory. If uncheck the decision box then to do the single line as optional. I think it is not possible to do that and I have to do it via validation in 'on validate' field. 

    • Revenue Management: #1 What does it mean to "recognize" revenue?

      Earning revenue isn't just about collecting cash from your customers. It's about recording the income correctly and consistently. Revenue recognition is the process of deciding when and how to record revenue in financial statements so that they reflect

    • Power of Automation :: Auto-Populate Integration Field in Projects with CRM Account Data

      Hello Everyone, A custom function is a software code that can be used to automate a process and this allows you to automate a notification, call a webhook, or perform logic immediately after a workflow rule is triggered. This feature helps to automate

    • Zoho Forms and ChatGPT - populating a field using AI.

      I have a form where I would like the user to enter a response or query, and have another field populated using AI. For example, user enters Field 1, AI populates Field 2 in response. I want to be able to wrap some additional instruction text around the

    • campo tag para api

      debo conectarme a una api de zoho inventory y ocupo tomar el campo tag para poder asi jalar el articulo que cuente con el campo correcto en tag ejemplo que tag existen carro y avion que cuando busque los articulo con tag carro arroje solo estos por mas

    • Connecting Zoho Inventory to ShipStation

      we are looking for someone to help connect via API shipStation with Zoho inventory. Any ideas? Thanks. Uri

    • Uploading file as attachment to Zoho CRM

             Hi,   I am trying to attach a file to a Zoho CRM contact using Zoho Flow. Right now, I try to do it through the “Upload File” field in Zoho CRM (In my screenshots, it’s called Téléchargement du fichier 1).   Here is what I tried:   Case 1: Webmerge document The Flow is called “Custom Function” (see screenshot 101).   Step  1: Creating a Webmerge document (screenshot 99)   Step 2: I use “Update module entry” to upload the created file. I upload Webmerge’s “Document” in my “Téléchargemet du

    • Zia Answer Bot - Create Ticket

      Surprisingly, the current iteration of Zia will try to answer a question and unless you have "transfer to SalesIQ chat" enabled, it won't create a ticket for the user or offer them a method to create a ticket. We don't want it to create chats for us,

    • meassure leads phases

      Hi, I need to create a table to meassure the time that a lead stay in blueprint phases. the phases are first contact, second contact, lead spam, contacted, appointment. any idea? I have attached an example

    • Zoho Desk API Documentation missing a required field

      We are trying to create a section using this information. Even after preparing everything based on that page, we still get an error. The error we get is this: {"errorCode":"INVALID_DATA","message":"The data is invalid due to validation restrictions","errors":[{"fieldName":"/translations","errorType":"missing","errorMessage":""}]}

    • In the Custom Module I have 500 Records , this 500 record only want to view to the specific user only example user A ,

      In the Custom Module, I have 500 Old records that should only be visible to a specific user, for example, User A. Any new records created from today onwards should be visible to Record owner in the Custom Module. Pls help how i achive this .

    • Invoice template, how to change the text under "Notes" and "Terms and Conditions"

      In "Invoice templates", there are two text/info sections at the bottom:"Notes" and "Terms and Conditions". It is possible to change the names of these two headings, but how is it possible to change/alter the text under it. As a standard it says "Thank you for your business" under Notes - I need to change it into something different- How? Thank you.

    • How to reply to thread via API

      We have built a webapp for our customers that uses the Zoho Desk API to enable each customer to view their full list of tickets, view individual tickets and raise new tickets. The Zoho Desk API doesn't have the ability to reply to a ticket/thread. Replies

    • Next Page