I got this error: BAD_REFRESH_TOKEN along with message ‘missing or invalid refresh token’. what should i do?
Hi @FAndreas, 
Thanks for reaching out to the Community! Errors like the one you shared can occur for multiple reasons — such as the refresh token being expired, revoked, or simply incorrect in your request, and are challenging to solve via the community. Here are some troubleshooting basics to help you work on this:
- make sure the refresh token you’re using is the one currently associated with your application and user
- check the token expiration
- the most straightforward solution is to re-authenticate your application by going through the OAuth authorization process again
- Managing tokens documentation
Debugging step:
- try using the refresh token to obtain a new access token via a simple, controlled API request
- if you get the same error, it’s likely the problem lies with the refresh token itself, and you’ll need to re-auth
I hope this helps get you moving forward.
Best,
Jaycee