OAuth error oauth_problem=token_rejected

Problem

When accessing content provided by the other application via an application link, you are prompted to authenticate, even though you have already authenticated in the past.

The following appears in the application log:

oauth_problem=token_rejected

Diagnosis

Environment

• Two applications are connected together using Application Links
• The authentication method used is OAuth
• One of the application is using OAuth 2LO with "Execute As" via Incoming authentication.

Cause

The user has established an OAuth authentication token before, however on the remote the token is missing. This can be because of:

1. The user has manually revoked the OAuth token at the other end
2. The Application Link OAuth configuration was changed at the other end, triggering all OAuth tokens to be removed

After this warning appears once, the token will be discarded and the user will be prompted to re-authenticate, so besides the inconvenience, this should not cause any further problems. 

• If you use 2-Legged OAuth (2LO) with an "Execute As" user, you are encountering the bug -  Unable to locate Jira server for this macro. It may be due to Application Link configuration.
• If you use 2-Legged OAuth (2LO) with an Impersonation, you shouldn't get the warning message.

Resolution