Problem using Zoho Desk API

Problem using Zoho Desk API

Goodmorning,
I am trying to use the Zoho Desk API to create a dashboard in Grafana, but I am having a problem. Following the instructions in the API documentation, I created the API Console application (server-based application). Then I created the string https://accounts.zoho.eu/oauth/v2/auth? with the necessary parameters, put it in the browser, and took the code I need for the token request. I created the string https://accounts.zoho.com/oauth/v2/token? with the code and all the other necessary parameters, but when I create the POST request in Postman to obtain access and refresh tokens, I get the error:  “error”: “invalid_client”
What could be causing this?

Thank you very much.
Pietro

    Access your files securely from anywhere

        All-in-one knowledge management and training platform for your employees and customers.






                              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

                                                              • Zoho Desk Partners with Microsoft's M365 Copilot for seamless customer service experiences

                                                                Hello Zoho Desk users, We are happy to announce that Zoho Desk has partnered with Microsoft's M365 to empower customer service teams with enhanced capabilities and seamless experiences for agents. Microsoft announced their partnership during their keynote
                                                              • WhatsApp pricing changes: Pay per message starting July 1, 2025

                                                                Starting July 1, 2025, WhatsApp is shifting from conversation-based pricing to per-message billing. That means every business-initiated message you send will count. Not just the first one in a 24-hour window. Pricing updates on the WhatsApp Business Platform
                                                              • Live Webinar - Work smarter with Zoho Desk and Zoho Workplace integration

                                                                Hello customers! Zoho Desk and Zoho Workplace are coming together for a webinar on 14th May, 2024. Zoho Workplace is a suite of productivity apps for email, chat, docs, calls, and more at one single place. Zoho Desk is closely integrated with a few tools
                                                              • Apple iOS 17 and iPadOS 17 updates for Zoho Desk users

                                                                Hello Zoho Desk users! Apple recently announced the release of iOS 17 and iPad OS 17. These latest OS updates will help you stay productive and efficient, through interactive and seamless user experiences. Zoho Desk has incorporated the updates to help
                                                              • Zoho Desk Cheat Sheet For The Year-End

                                                                Check out these Zoho Desk best practices to end this year on a high and have a great one ahead! #1 Set Business (Holiday) Hours - If you have limited working hours, please make sure you restrict your business hours or set them as holidays for the coming days. Let your customers know when you will, and won't, be available. #2 Update the Annual Holiday List - Check the holidays for the new year and update the holiday schedule. Usually, holidays from the current year will be carried over for the next


                                                              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

                                                                                                                • Add notes in spreadsheet view

                                                                                                                  It would be great if we could Add/edit notes in the spreadsheet view of contacts/leads. This would enable my sales teams to greatly increase their number of calls. Also viewing the most recent note in the Contact module would also be helpful.
                                                                                                                • Opening balances - Accounts Receivable and Payable

                                                                                                                  Our accounting year starts on 1st August 2013 and I have a Trial Balance as at that date, including Accounts Receivableand Accounts Payable balances, broken down by each customer and supplier. Q1 - do I show my opening balance date as 31st July 2013 or
                                                                                                                • Cancel Subscription

                                                                                                                  Hi , Im want to cancel my account but without success please help me to do it
                                                                                                                • Making an email campaign into a Template

                                                                                                                  I used a Zoho Campaign Template to create an email. Now I want to use this email and make it a new template, but this seems to be not possible. Am I missing something?
                                                                                                                • Direct Access and Better Search for Zoho Quartz Recordings

                                                                                                                  Hi Zoho Team, We would like to request a few enhancements to improve how Zoho Quartz recordings are accessed and managed after being submitted to Zoho Support. Current Limitation: After submitting a Quartz recording, the related Zoho Support ticket displays
                                                                                                                • Multiple Cover Letters

                                                                                                                  We are using the staffing firm edition of Recruit and we have noticed that candidates cannot add more than one cover letter. This is a problem as they might be applying for multiple jobs on our career site and when we submit their application to a client,
                                                                                                                • URGENT: Deluge issue with Arabic text Inbox

                                                                                                                  Dear Deluge Support, We are facing an issue that started on 12/Feb/2026 with custom functions written using Deluge within Qntrl platform. Currently, custom functions do not accept Arabic content; it is replaced with (???) characters. Scenario 1: If we
                                                                                                                • File Conversion from PDF to JPG/PNG

                                                                                                                  Hi, I have a question did  anyone every tried using custom function to convert a PDF file to JPG/PNG format? Any possibility by using the custom function to achieve this within zoho apps.  I do know there are many third parties API provide this with
                                                                                                                • Now in Zoho One: Orchestrate customer journeys across apps with Zoho CommandCenter

                                                                                                                  Hello Zoho One Community! We’re excited to introduce Zoho CommandCenter as a new capability available in Zoho One. For the whole customer journey As Zoho One customers adopt more apps across sales, marketing, finance, and support, a common challenge emerges:
                                                                                                                • annualy customer report

                                                                                                                  we need a report per customer that looks like this invoic number cleaning laundry repair management 01 january xxx euro xx euro xx euro xxx euro 02 february xxx euro xxx euro x euro xxxx euro and so on the years 12 months is that possible to make and
                                                                                                                • Totals for Sales Tax Report

                                                                                                                  On the sales tax report, the column totals aren't shown for any column other than Total Tax. I can't think of a good reason that they shouldn't be included for the other columns, as well. It would help me with my returns, for sure. It seems ludicrous
                                                                                                                • Free Webinar: Zoho Sign for Zoho Projects: Automate tasks and approvals with e-signatures

                                                                                                                  Hi there! Handling multiple projects at once? Zoho Projects is your solution for automated and streamlined project management, and with the Zoho Sign extension, you can sign, send, and manage digital paperwork directly from your project workspace. Join
                                                                                                                • Exported Report File Name

                                                                                                                  Hi, We often export reports for information. It is time consuming to rename all the reports we export on a weekly basis, as when exported their default name is a seemingly random string of numbers. These numbers may be important, I'm not sure, but I am
                                                                                                                • Automatic Refresh on Page?

                                                                                                                  Hi everyone, We use a page as a dashboard which shows data for the laboratory and tasks pending etc. Is there a way to set the page to automatically refresh on a X time? Many thanks TOG
                                                                                                                • 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
                                                                                                                • Default Reminder Time in New Tasks or New Event?

                                                                                                                  Any way to change this from 1:00am? Thanks, Gary Moderation Update (February 2026): With the Calendar preferences, the default reminder time for Meetings, Appointments and All-Day Meetings can be set. Read more: Calendar preferences in Zoho CRM Regarding
                                                                                                                • Right Shift key not sending to Zoho Assist environments

                                                                                                                  I'm unable to use Right Shift key in Zoho environments. Zoho environments are Win10. Computer I access from is Win 11. Issue started when I changed to Win 11. Have tried: - Multiple browsers - web client AND desktop client - 3rd party mapping tools to
                                                                                                                • About Meetings (Events module)

                                                                                                                  I was working on an automation to cancel appointments in zoho flow , and in our case, we're using the Meetings module (which is called Events in API terms). But while working with it, I'm wondering what information I can display in the image where the
                                                                                                                • PDF Annotation is here - Mark Up PDFs Your Way!

                                                                                                                  Reviewing PDFs just got a whole lot easier. You can now annotate PDFs directly in Zoho Notebook. Highlight important sections, add text, insert images, apply watermarks, and mark up documents in detail without leaving your notes. No app switching. No
                                                                                                                • How do you do ticket add ons in Backstage?

                                                                                                                  Hi Everyone, If you wanted to have general admin tickets and allow for add ons, like camping, or car or Carbon offset. What would you do? Peace Robin
                                                                                                                • 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
                                                                                                                • Pull cells from one sheet onto another

                                                                                                                  Hello all! I have created an ingredients database where i have pricing and information and i want to pull from that database into a recipe calculator. I want it to pull based on what ingredient I choose. The ingredients database has an idea and i want
                                                                                                                • Emails Failing with “Relaying Issues – Mail Sending Blocked” in ZeptoMail

                                                                                                                  Hello ZeptoMail Support Team, We are facing an email delivery issue in our ZeptoMail account where emails are failing with the status “Process failed” and the reason “Relaying issues – Mail sending blocked.” Issue Details Agent Name: mail_agent_iwwa From
                                                                                                                • How does Zoho handle support operations for our EU users?

                                                                                                                  Dear Zoho users, We have some news and reminders about how we handle support operations for Zoho users in the EU Data Center. This is part of our broader commitment to ensuring GDPR compliance and providing secure data handling for all users. We'd like
                                                                                                                • Layout Adjustment.

                                                                                                                  Hello Latha, Hope you are doing well. I wanted to check with you about adjusting the layout columns in the Service Report from the backend, as currently there is no capability for us to customize the layout from our end. Below is the output that I am
                                                                                                                • Zoho Often Lag

                                                                                                                  Desk Team, We've noticed that Desk, Creator & other apps seems to lag more these days. We often refresh multiple times.
                                                                                                                • Importing into the 'file upload' field

                                                                                                                  Can you import attachments into the file upload field. I would expect it to work the same way as attachments do, But can't seem to get it to work. Moderation Update: The option to import into File Upload and Image Upload fields has been supported. Read
                                                                                                                • Layout Rules Don't Apply To Blueprints

                                                                                                                  Hi Zoho the conditional layout rules for fields and making fields required don't work well with with Blueprints if those same fields are called DURING a Blueprint. Example. I have field A that is used in layout rule. If value of field A is "1" it is supposed to show and make required field B. If the value to field A is "2" it is supposed to show and make required field C. Now I have a Blueprint that says when last stage moves to "Closed," during the transition, the agent must fill out field A. Now
                                                                                                                • Zoho Desk blank screen

                                                                                                                  opened a ticket from my email, zoho desk comes up blank, nothing loads. our receptionist also gets the same thing under her login on her computer. our sales rep also gets same thing on zoho desk at his home on a different computer. I tried clearing cache/history/cookies,
                                                                                                                • 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
                                                                                                                • filter on sheets mobile (iOS, iPadOS) does not work

                                                                                                                  I have this issue on every spreadsheet, whether imported or created natively in Zoho Sheets. I can use on desktop without issue: desktop screenshot on iOS the filter dropdowns are not there and there is no way to add them mobile iPadOS looks the same
                                                                                                                • Is there a way to customize default settings?

                                                                                                                  I want to customize default settings within my Zoho Business account. For instance, the current default setting for Texts inserted into a Notebook has the font much bigger than I like. Thus every time I create a new text item on a page, I have to go through the annoyance of selecting all the text and changing the size. Granted this is a minor irritation in the scheme of things, but it would be nice to have the ability to set default fonts, sizes, colors, background colors, etc. Is there currently
                                                                                                                • Can't edit Segments

                                                                                                                  Happening with 2 different Zoho One environments, in different browsers. Please fix.
                                                                                                                • Error 554 Email Outgoing Error

                                                                                                                  Our email address (info@tvbhouston) was recently migrated to a new domain host on WordPress, and our SSL certificate is still pending. We would like to continue using your service, but we are currently unable to send emails. Could you please re-enable
                                                                                                                • Transfer ownership of files and folders in My Folders

                                                                                                                  People work together as a team to achieve organizational goals and objectives. In an organization, there may be situations when someone leaves unexpectedly or is no longer available. This can put their team in a difficult position, especially if there
                                                                                                                • 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
                                                                                                                • Subform edits don't appear in parent record timeline?

                                                                                                                  Is it possible to have subform edits (like add row/delete row) appear in the Timeline for parent records? A user can edit a record, only edit the subform, and it doesn't appear in the timeline. Is there a workaround or way that we can show when a user
                                                                                                                • Zoho CRM - Option to create Follow-Up Task

                                                                                                                  When completing a Zoho CRM Task, it would be very helpful if there was an option to "Complete and Create Follow-Up Task" in the pop-up which appears. It could clone the task you are closing and then show it on the screen in edit mode, all the user would
                                                                                                                • Deluge function to copy parent record file upload field to child record file upload field

                                                                                                                  I'm stuck trying to write a deluge function that is triggered via automation in child record "Appointments," confirms if a file is in file upload "Report" field of parent "Contacts" record via Contacts lookup field "Contact_Name". If no file is in parent
                                                                                                                • Make panel configuration interface wider

                                                                                                                  Hi there, The same way you changed the custom function editor's interface wider, it would be nice to be able to edit panels in pages using the full width of the screen rather than the currently max-width: 1368px. Is there a reason for having the configuration panel not taking the full width? Its impossible at this width to edit panels that have a lot of elements. Please change it to 100% so we can better edit the layouts. Thanks! B.
                                                                                                                • Next Page