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

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