Rules for Maintaining Formulas (SAP Library - PP

Rules for Maintaining Formulas

Formulas and formula parameters are maintained in Customizing - Work center:

Formula parameter in Define formula parameters for work centers

Formulas in Define formulas for work centers

You must define formula parameters that you want to use before you create formulas, if you do not want to use formula parameters that have been defined by SAP.

Usage Indicator

You use an indicator to determine where the formula should be used, for example in scheduling and costing.

General Rules

A formula can be up to three lines long.

There must be at least one space between operand and operator. Exception: brackets in a function, for example, SIN(A).

Formulas use the same syntax as the ABAP statement COMPUTE. For further information see ABAP User’s guide in the Basis documentation under Numerical operations.

Units are converted automatically.

Permissible Operations

Arithmetic functions

+, -,*,/

Trigonometric functions

SIN, COS

Integral division

DIV, MOD

Square root

SQRT

Exponential function

EXP

Natural logarithm

LOG

Splits in Formulas

If you want to take splits into account in a formula, you must explicitly enter the split in a formula parameter.

Note

In scheduling to calculate the execution time, the lot size is divided by the number of partial lots. In capacity planning to calculate the capacity requirements, the set-up time is multiplied by the number of partial lots.

Arithmetic functions	+, -,*,/
Trigonometric functions	SIN, COS
Integral division	DIV, MOD
Square root	SQRT
Exponential function	EXP
Natural logarithm	LOG