I am trying to send a test message via the API to a valid recipient on the bnum list.
When I check the status of the message I can see the following
{ "status":"401", "code":"MSG_ERR_CODE_70002", "message":"Invalid access token. Please try with a valid token" }
At this point I have called the endpoint "v2/oauth/token" and retrieved the Bearer/Token and used it in the header for my message, so I don't understand why the token I have just retrieved would be invalid.