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SAP PP FAQ

SAP PP Frequently Asked Question

Q: How to configure the planning calendar for the ATP calculation where goods are shipped every other working day?

A: Use Transaction MD25 and define calculation rule for every other working day. Check the lot size settings in OMI4 and maintain relevant data in MMR.

Q: We have two different production lines with different operations. One production line works 5 days a week and the other 7 days a week. The factory calendar is assigned to the plant for 5 days a week. This calendar is checked when MRP is run.

How can we assign 5 day a week and 7 days a week against a factory calendar to the related resources? Is it possible to have two types of calendars?

A: Assign factory calendars to the work centers.

Q: What is the difference between by-product and co-product and how do you differentiate them in a BOM?

A: In case of Co-product costs are settled with a apportionment structure. In case of By-product the price of this by-product is credited to the order or the material stock account of the lead material being manufactured. Co-Product as well as by-product are defined as BOM Components/Items.

Both of them have negative quantities. ( Not all negative quantity items fall under these categories!). When BOM is created for FERT , you can see one indicator in COMPONENT DETAILS screen for co-product. You need to define the co-products with this special indicator .

Q: What are some important tables used in PP ?

A:

For orders:

CUAFVD dialog structure for order headers and items

AFPO - Order item
AFFLD Order: Dialog table for order sequences (AFFL)

MOPER Operation for production order
KBED Capacity requirements

AFRU Order completion confirmations
RESB Reservation/Dependent Requirements
AFFHD Structure of PRT's in orders
SOPER Sub-operations

SAFRU Sub-operation confirmations
SKBED Capacity requirements for sub-operation

MRP table is MDTB.

For PI:

CAUFV - AFVC Operation within an order

AFFT Order Process Instructions
AFFV Order process instruction values

Some other tables of interest:
PLKO, MAPL , PLAS.

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