You can create your own formulas within the R/3 System. The following is an example of a formula for calculating the duration of an operation.

In the simplest case, the result of a formula is a standard value entered for the operation:

F = DURAT

If the operation duration is, for example, dependent on the operation quantity, you can also include additional "general operation values":

F = DURAT * OPQT/ BASEQT

If the operation duration is, for example, dependent on the resource used for this operation, you can also enter "resource constants" in the formula:

F = DURAT * OPQT/ BASEQT x BASEOUT /RESOUT

The meaning of the formula keys and the origin of the parameters in this formula are displayed in the following table.