Why has my authentication request failed with "invalid_grant_type"?
According to the RFC specifications:
The provided authorization grant (e.g., authorization
code, resource owner credentials) or refresh token is
invalid, expired, revoked, does not match the redirection
URI used in the authorization request, or was issued to
Still having problems?
- Confirm that you do not have multiple developers testing using the same account, this will lead to multiple tokens being created which will constantly invalidate each other.
If you need more information...
Have a look at our comprehensive list of the authentication error descriptions in our.