Technical Process Flow (SAP Library - SAP Apparel and Footwear (SAP AFS))

Technical Process Flow

Features

The rescheduling run is divided into the following steps:

First, all sales documents are selected that create a requirement to the material(s) specified for selection. Unconfirmed requirements, those rejected by the availability check, are generally considered (exception: the field Selection via Reqmts Table is selected).

The requirements records are sorted along the time line according to the entered sorting criteria.

All requirements records receive a requirements lock. This lock is removed for each requirements record as soon as it is transferred to the availability check. The system processes the requirements in the same sequence as they were sorted along the time line in step 2. The requirements lock ensures that sales requirements yet to be checked are not considered by the availability check and therefore cannot reduce stock for the requirement currently to be checked.

For background information on this, see the example in the first section under Selection.

A new availability check runs for each requirement.

A document is only saved if data relevant for requirements has been changed due to the availability check result. This includes data such as:

Delivery date of schedule line (material availability date)
Transportation planning date (in the case of active delivery scheduling)
Quantity per schedule line (if a schedule line has been split)
Quantity per item (if stock could be reassigned to schedule lines that were rejected by the availability check)

Output of the log

Note

The following greatly contribute to the performance of the rescheduling procedure even for a larger number of requirements records:
the system sets the requirements lock once for all requirements records and then removes it if the requirement is currently being processed
a document only has to be saved if changes in delivery date or quantity of a requirement have been made

Recommendation

Even so, you should try to keep the number of materials per rescheduling run as low as possible. Please note that the materials for operating that have been selected for rescheduling, such as those for entering new sales documents or for executing the allocation, are locked until the report is completed.

We therefore recommend that you select only a few materials for each run and that you choose a time for the start of the report when the system is not being worked on and/or when no other reports are planned.

The estimated end of the report and the time of the resumption of normal business should not lie too close together. This way, if rescheduling has to be terminated, you will have enough flexibility to reset the requirements lock for your materials again (see the section on Reset requirements lock indicator under Selection.)