Capacity Requirements (SAP Library - Capacity Planning (PP-CRP))

Capacity Requirements

Orders generate capacity requirements and thus a load on the resources that are to process them. The following types of orders are relevant:

Production orders in Shop Floor Control (SFC)
Process orders in the Process Industries (PP-PI)
Planned orders in
Material Requirements Planning (MRP)
Master Production Scheduling (PP-MPS)
Long-term Planning (PP-LTP)
Repetitive Manufacturing (PP-REM)
Sales and Operations Planning (PP-SOP) for quantities in rough-cut planning
Maintenance orders in Plant Maintenance (PM)
Networks in the Project System (PS)
Sales orders, assembly orders or networks in Sales and Distribution (SD)

Calculating the capacity requirements of an operation for manufacturing a material takes place in scheduling using formulas from the work center. For this, you must enter a formula to calculate the capacity requirements of the operations for each of the three operation segments setup, processing and teardown on the screen Capacity overview in work center maintenance. Operations in networks, maintenance orders and process orders are not subdivided into operation segments. Here you specify a formula for the whole operation. If you fail to enter one of the formulas, no capacity requirements are calculated for the relevant operation segment or operation.

The formulas which you can maintain in Customizing contain formula parameters. These can be, for example, standard values from the operation, work center constants or values for production resources/tools (see the figure below).

This graphic is explained in the accompanying text

If you use formulas with parameters that refer to standard values, you must enter the standard values of individual operations either in the routing or in the order. For example, if the formula for the operation segment "processing" contains the machine time as a parameter, you must enter the machine time for the quantity in the base unit of measure. In this case as well the system can only calculate capacity requirements if values exist for the various formula parameters.

Note

In capacity planning, you only see the total requirements for an operation for operations with operation segments, not the capacity requirements of individual operation segments.

You can find more information on formulas in the documentation PP - Work Centers.