OAuth2 token refresh issue to Azure AD

[KevP]

Getting this error and don't know how to resolve it without deleting the entire integration and setting it up again:

Message: Response for request for token config with ID 1 and request type 'TokenByAuthorizationCode' was not '200 OK'. invalid_grant (error code 54005): AADSTS54005: OAuth2 Authorization code was already redeemed, please retry with a new valid code or use an existing refresh token.

Any help appreciated.

[skullz]

No expert in this, but first i check the url authorization and url for token in Oauth2 screen.

Url authorization should end with '/authorize'
Url token should ens with '/token'

[KevP]

I resolved this by creating a new OAuth2 connection and migrating the Postmaster Mail Accounts over to it.