Type of message:  This is an internal message for MediusGo. 

Cause: The posting date on the invoice is outside the valid range specified by the system parameters MinAccountingDate and MaxAccountingDate.

Action: There are two options for proceeding with the invoice:

• Change the Posting date under Invoice information on the invoice so that it is within the specified range.
• Go to Administration Tool - System Configuration - System Settings - Functions and change the dates for the parameters MinAccountingDate and MaxAccountingDate.

If none of this solves the problem, contact the MediusGo Customer Center via the support button on the invoice or our Customer portal.