Zoho CRM Error message #2 : Fixing [Invalid Credentials] and [Authentication Fail] while configuring IMAP

Zoho CRM Error message #2 : Fixing [Invalid Credentials] and [Authentication Fail] while configuring IMAP



Hi Everyone!

As a part of our Zoho CRM Error messages series, we're going to focus on couple of error messages that you might encounter while configuring IMAP and ways to resolve them. These are:

  • [Invalid Credentials]

  • [Authentication Fail]

 

The annoying part is that sometimes you get these error messages despite entering the correct credentials. Troubleshooting these errors start with understanding the root cause of these errors. You get these errors when:

  • TFA (two factor authentication) is enabled for your account

  • An previously saved password gets auto filled while configuring but you changed the account password recently.

  • When an incorrect server name is entered. For e.g., the user might be in zoho.eu domain but entered the domain name as zoho.com.

 

How can you resolve these errors?

  • If TFA is enabled: Generate app specific password for your email account from the "Two Factor Authentication" section in your Zoho Accounts page and use the same for IMAP configuration. More on that here.

       

       

 

 

  • Password auto fill: If a previously saved password gets auto filled and you have changed the password since then, ensure you retype the password manually while configuring.

  • Ensure you use the correct hosted server name while configuring IMAP.

  • Ensure you are logged in to web mail while configuring the IMAP.

 

Hope this helps resolve the error messages encountered while configuring IMAP. If the issue persists, do post in our community or contact our support team for the fix. 

We will continue to add more fixes to other prominent error messages in the coming weeks. Stay tuned!

Check the steps for resolving connection errors while configuring IMAP here.



      • Sticky Posts

      • How to reach the official Zoho Support channels and avoid fake ones.

        Dear Customers, Thanks a lot for choosing Zoho! Our applications are built to help achieve your day-to-day business goals. We are committed to engaging with you, to understand and develop solutions that enhance your productivity.  We are happy and ready to help you use our services effectively. Understanding and avoiding fake support Just like using popular bank names and financial applications for phishing purposes, using Zoho and claiming to be providing Zoho Support or services with false numbers
      • Function #35: Close all tasks associated with a lead and create a new task.

        Welcome back everyone! Last week, we learnt how to close all tasks of a deal depending upon the deal stage. This week, let's look at a custom function that lets you close all of the tasks associated with a lead while simultaneously creating a new task, like when you need to halt all progress towards a lead while the lead is not available at the moment but create a reminder task. Business scenario: The success of a company, in one way or another, is determined by the leads it gets. Each lead is just
      • Zoho CRM Webinar - Redesigning Daily User Experiences with Canvas

        <br> Your users across roles use the CRM for day-to-day tasks that are necessary. Whether they perform their tasks on time, the right way, or at all depends on a lot of factors, including User Experience. Many businesses struggle with rigid layouts,
      • Join us at the Canada ZUG Meetup: What’s New in Zoho CRM

        Hello Zoho Community! Start your year with fresh insights into Zoho CRM’s latest updates and tools. Whether you're a CRM beginner or a experienced user, this meetup is crafted to help you optimise your processes and leverage new features. Explore practical
      • CRM Hack #2: Automate sending of birthday greetings to your customers.

          Hello everyone! What sets you apart as a sales person is your ability to add that personal touch to your business relationship with your customers. Sending a gift on a special day, or leaving a note wishing them on their birthdays, are small, yet significant actions that show your customers that you care. And these are actions done without any expectations :) You must be engaging with a lot of customers and it is highly unlikely that they all are your friends on Facebook or some social channel,

        • Recent Topics

        • Download All Attached Files

          It would be extremely useful to have "download-all" functionality for downloading files attached to a task, subtask, comment, forum post or hosted in the "Documents" section etc. We've instructed our users to zip multiple files prior to uploading, but of course they forget all the time. Having to download lots of files one-at-a-time off a comment or task wastes a lot of time.
        • unable to send message reason 554 5.1.8 Email outgoing blocked

          unable to send message reason 554 5.1.8 Email outgoing blocked
        • Ship via Carrier Not Working Since Commerce Update

          Since the recent update to the Commerce platform, I can no longer use the ship via carrier function. It will take me to the address screen and let me verify them but when I go to save and move tot he next screen it will not do anything. This is happening
        • automations: Can I execute a step on a specific date?

          I have created a form in Zoho forms, and created a contacts list. I have also begun setting up an automation with the intention of sending the form to the contact list on a specific date every month (via email) for the entire year (essentially sending
        • Zoho Expense - The ability to add detail to a Trip during booking

          As an admin, I would like the ability to add more detail to the approved Trips. At present a requestor can add flights, accommodation details and suggest their preferences. It would be great if the exact details of the trip could be added either by the
        • Adding Folders in Android App

          Is it possible to create a new email folder within the Zoho Mail Android app?  Or can this only be done from the desktop version of Zoho Mail? Cheers!
        • Schedule Exports for Regular Project Updates

          Tracking project data often means exporting data at regular intervals. Instead of manually exporting data every time, users can schedule exports for Phases, Tasks, and Tasks in Zoho Projects. These exports can be set to run once, daily, weekly, or monthly
        • Question about custom fields using Pivot Tables.

          I have created a pivot table showing annual revenue of a client and how much payment that client is paying my company. Is there a way using pivot table to add an additional field that subtracts those to fields / shows me a percentage of that difference?
        • Request for Light/Dark Mode

          Would love the ability to switch between Light and Dark mode similar to Zoho CRM. https://help.zoho.com/portal/en/community/topic/introducing-dark-mode-light-mode-a-new-look-for-your-crm
        • Signature field is showing black

          Hello, When customer signed the service form, it is showing as below picture Phone model: iPhone 16 Pro We tried delete and install application, but it not solved. This has on phone of a few person. There is any advice to solve this?
        • Journey Email - Ignored Contacts

          I have a journey setup which simply sends a string of emails over time. For some reason I am getting large amounts of the contacts who enter the first email being ignored and I can't find anywhere in reports or audit logs why these contacts are not
        • Involved account types are not applicable when create journals

          { "journal_date": "2016-01-31", "reference_number": "20160131", "notes": "SimplePay Payroll", "line_items": [{ "account_id": "538624000000035003", "description": "Net Pay", "amount": 26690.09, "debit_or_credit": "credit" }, { "account_id": "538624000000000403", "description": "Gross", "amount": 32000, "debit_or_credit": "debit" }, { "account_id": "538624000000000427", "description": "CPP", "amount": 1295.64, "debit_or_credit": "debit" }, { "account_id": "538624000000000376", "description":
        • Zoho Books - Include Payment Terms as a Custom View filter

          It would be great if you could created a custom view based on Payment Terms. This would be really handy for seeing a list of customers who have credit terms. A workaround is not required. I could do something with a creditor checkbox, but it would be
        • How to update changed purchase account of item in invoice

          I have selected the wrong purchase account for various articles and created invoices. I had to adjust the purchase account in the article afterwards, but the old purchase account is still posted in the transaction-journal of the invoice. To adjust the
        • Help - Zoho CRM notification on mobile (IOS/Android)

          Hello Community! Can I get the IOS/Andoid CRM app to notify me of events, calls, etc. due as I can with MANY other apps?   I am running the free Zoho I would like this to be native to the Zoho CRM app. I do not want to write a sep. mobile app
        • Zoho Books Idea - Include another field in Bank Details for Address

          Hi Books team, Currently use the Description field in the Bank Details to store the bank's address. This works fine but it would be great if you could add another field for Bank Address, so that other notes about the bank account could be stored in the
        • a question about the COQL API v8

          When I specify eight or more values in a WHERE IN clause and execute it, an error occurs. Is there a limit to the number of values that can be specified in a WHERE IN clause? ↓Error select * FROM Vendors WHERE (id in (1, 2, 3, 4, 5, 6, 7, 8, 9)) ↓Success
        • Zoho Books Idea - Bank Details Button on Banking

          Hi Books team, Sometimes I'm asked to share bank details with a customer or a colleague. So I go to the Banking Module, find the correct bank account, click Setting > Edit, then copy and paste the bank details. Wouldn't it be great if there was a button
        • JS SDK 8.0 – TypeError: Cannot read properties of undefined (reading 'getCacheStore') with sample code

          Hello Zoho Support Team, I’m integrating the Zoho CRM JavaScript SDK v8.0 and I’m getting the error below when running your official sample. I tested directly from: https://github.com/zoho/zohocrm-javascript-sdk-8.0/blob/main/samples/create_records_sample/create_records.js
        • Function #55: Convert multiple quotes to single SO using Custom Button

          Hello everyone, and welcome back to our series! In Zoho Books, after a quote is accepted by your customer, it can be converted into a sales order or an invoice. Often, a customer might have multiple quotes, and for easier billing or upon the customer's
        • Time based workflow without edit/action

          Hello I need help solving this problem if possible. We have Deals come into the CRM via Live Transfer which have the field properties: Stage = New Channel = Inbound Some of them don't get answered so we want these to automatically go into our Outbound
        • What's New - August 2025 | Zoho Backstage

          Every month, Zoho Backstage grows with you. These updates aren't just features and fixes, they're about making your workday smoother, your events more impactful, and your attendees happier. We’ve listened, learned, and shaped this release to keep things
        • prevent selling expired items

          Hello. I need to make a constraint on expired batch items not to be sold. Is it possible in Zoho Inventory? if so, then how? Thanks for further help.
        • Product details removed during update from other system

          We maintain our product details in an other system. These details are synchronized with Zoho at the end of each day, through an API. This has worked perfectly sofar. But last Monday, all product codes and some other product data have been wiped during
        • Client Customer

          I purchased a customer user license, but we cannot see the project I added in the customer account. I would like to ask for support on what we should do.
        • Add Ability to Use Zoho Finance Tags

          For Zoho Finance (Books and Inventory), the current actions do not allow us to affect the tags associated with the entities in question (customers, vendors, items, etc.). Please consider adding this functionality into the actions.
        • Embeded Signing doesn't work on Safari Browser

          We have implemented Zoho Sign in our website by using embeded signing, It works perfectly on Chrome. But it fails on Safari, We get stuck on Zoho Sign Page during redirection from Zoho Sign to our website after signing the document, Please let us know
        • Dataprep Webhook Limits and Cannot update column with Dataprep

          I have two problems : 1 - I am using Airflow to trigger my pipeline, and when I tested it, it worked fine a couple of times. However, after that, I received an error: {"code":429,"message":"Request rate limited"}. I didn’t send too many requests — maybe
        • New in Zoho Forms: Google reCAPTCHA v3 for smarter spam protection

          Hello form builders, Spam submissions are one of the biggest challenges when you share your forms online. They not only clutter your data but can also waste valuable time. To help you combat this without making life harder for genuine respondents, we’re
        • Project Management Bulletin: August, 2025

          We’ve touched a grand 19 years since we started pioneering project management solutions with Zoho Projects. What started as a simple one-page interface is now a suite of products with Zoho BugTracker, Zoho Sprints, and our new debut Zoho Projects Plus,
        • Zoho Sign and Zoho Workdrive Integration

          Hello, there. I want to know if it's possible to save a signed document from Zoho Sign in an specific folder for each signer in Zoho Workdrive.  For example: If John Doe signs the document in Zoho Sign I want to save it automatically in a folder named
        • How do you list multiple contacts for a lead?

          My sales team wants to be able to add additional contacts for leads, how do we do that? Is there a different way we should be using the lead / contact functionality? Moderation update (9th September 2025): Our developers have built an extension to achieve
        • Modifying Three Dot Menu Options

          Is there a way to modify the three dot menu options that display in a Report header? They currently display: Show As (List, Calendar, Timeline), Print, Import, Export. I'd like to remove the Show As and Print options, since they aren't applicable for
        • Field Not Updating in FSM Script - Service and Parts module.

          Dear Team, I am reaching out regarding a script I have implemented in Zoho FSM to automate the calculation of the End of Service date based on the End of Sale date in the Service and Parts module. Overview of the script: Fetches the End_of_Sale__C and
        • Zadarma + Zoho CRM Integration – Missed Calls Saved as Contacts Instead of Leads

          Hello everyone, I’m looking for input from anyone with experience using the Zadarma + Zoho CRM integration. Currently, I’m seeing that missed calls are automatically being created as Contacts instead of Leads. From a CRM perspective, this doesn’t make
        • Zoho Books | Product updates | September 2025

          Hello users, We’ve rolled out new features and enhancements in Zoho Books. From PayNow payment method to applying journal credits to invoices and bills in other locations, explore the updates designed to enhance your bookkeeping experience. Integrate
        • How to update Multiple Users field in Quote Module from Deal Module

          Scenario : Deal Module having Multiple User Field (Presales Engineer) which having more than 1 User and through Deluge Script I need to get that Users Details and need to put into Multiple User Field (Presales Engineer) of Quote Module. Note: Both Module
        • Auto-sync field of lookup value

          This feature has been requested many times in the discussion Field of Lookup Announcement and this post aims to track it separately. At the moment the value of a 'field of lookup' is a snapshot but once the parent lookup field is updated the values diverge.
        • Clone a Module??

          I am giong to repurpose the Vendors module but would like to have a separate but very similar module for another group of contacts called Buyers. I have already repurposed Contacts to Sellers. Is it possible to clone (make a duplicate) module of Vendors
        • Advance PDF creation from CRM data

          I'm trying to create a PDF export of data in the CRM. My problem is I want a pretty complicated format for the data. I'm trying to export multiple modules worth of data, with nested one-to-many relationships between the modules. Along with that, I want
        • Next Page