Hi,
Our team has been diligently working with Reckon Account Host API for a month, integrating it into our sync process hourly with OAuth2 Authorization code flow and refresh token. However, we've encountered a roadblock: After one month, we received a 401 (authorization has been denied) error.
I need to know why it is an unauthorized error and the root cause of the error. However, we are using the refresh token flow, so this error should not happen in this scenario. We appreciate your potential help in resolving this issue.
Please note that we have reconnected the authorization, and it worked fine. We just need to know what caused an error and how to solve this problem.