Diagnosis
In a scheduling agreement with delivery schedules, for which thejust-in-time (JIT) and forecast delivery schedules are relevant formaterials planning according to the validity of the JIT horizon, thedelivery schedule quantity in the JIT delivery schedule horizon doesnot correspond to that in the JIT delivery schedule.
However, the delivery schedule has a quantity in transit that has beenincluded in the schedule line open quantities but is not included inthe requirements.
For example:
Forecast dlv. sched Jan 1st JIT dlv. sched Feb 1st (valid to Feb 28)
Cum. delivered qty 100 Cum. delivered qty 100
Cum. received qty 10 Cum. received qty 50
In transit 90 In transit 50
Schedule lines Schedule lines Requirements
Date Qty Open qty Date Qty Open qty
----------------------- ----------------------- ------
Feb 1 20 0 0
Feb 8 20 0 0
Feb 15 20 10 10
Feb 22 20 20 20
Mar 1 100 10 100
Apr 1 100 100 100
The problem arises because on March 1, a requirement for 100 existsalthough the open quantity is only 10 when you look at the forecastdelivery schedule only.
However, if both delivery schedules are valid and relevant, theforecast delivery schedule should also contain a corresponding quantityfor the February schedule lines in the JIT delivery schedule.
At the moment, it is not clear to the system how much the customerrequires for March 1.

System Response
The system thinks that there are differences between the openquantities and the material planning requirements.

Procedure
You can do one of the following:
Either change the material requirement processing for deliveryschedules in the scheduling agreement.
If you can't change the materials requirements processing, ask yourcustomer to send you a new forecast delivery schedule that matches theJIT delivery schedule.
If the customer can't send you a matching delivery schedule, you willhave to adjust the delivery schedule, or enter a new forecast deliverymanually.