SAP Message VK466 - Calendar &1 can not be used for the settlement period

Diagnosis
Calendar &V1& cannot be used as a settlement period

System Response
The system only permits a calendar as a settlementperiod if the work days in the calendar fall at the end of theperiod.

Procedure
Check the definition of calendar &V1&. You may need to correct thecalendar definition or create a new calendar.