With reference to this topic Cannot renew access and refresh token (invalid_grant)
We are also getting the error “invalid_grant” while refreshing the token using the refresh token. Only one customer facing this issue and its working fine for other customers.
Please find the details below,
Authorization: Basic *********
HTTP/1.1 400 Bad Request
Thanks for reaching out to us.
Have you been able to troubleshoot this on your end? This could be an issue related to the expiration of the refresh token.
If the refresh token expired, then the user will need to reauthorize the app to get a new set of access token and refresh token
At our end, whenever we get the invalid access token we will re-generate the token and store the newly created access and refresh tokens at our end.
Would it be possible to check how the refresh token was invalidated for the user. Because, 100+ customers are using the integration, none of them reported the issue in tokens. This our first customer reporting issue in tokens.
If you need more info like email or zoom accountId of the user or the access/refresh tokens. Please let us know.
Would you be able to provide me with the refresh token or access token that the user had this error with?