Possible reasons for the log on failure include: (1) The current user is not a valid Windows user. (2) The user is not configured ...

Possible reasons for the log on failure include: (1) The current user is not a valid Windows user. (2) The user is not configured in Microsoft Dynamics AX. (3) The user has not been enabled in Microsoft Dynamics AX. (4) The IIS application pool identity should be running as the Business Connector proxy user. (5) The Business Connector proxy user has not been configured in Microsoft Dynamics AX under Administration > Setup > Security.