Diagnosis
When calculating the forecast requirements for replenishment, the dateintervals for calculating the forecast quantities from the beginning ofplanning to the end of the first or the beginning of the second timeinterval were transferred incorrectly so that the system could notcalculate a result.

System Response
The system does not calculate a forecast requirement.

Procedure
Adjust the master data so that the time intervals for the forecastrequirements are valid. If replenishment is to be used you also need tomaintain the data for calculating the replenishment lead time and checkthe target range of coverage in the master data.