In the Planning Formulas procedure you will find a collection of formulas for all material planning calculations in the SRS.
Each formula has got a name. Certain formulas are used as filtering and sorting selections in affected Search Forms. For these formulas you can enter a comment in a field to the right. The variables in the formulas can be edited by right-clicking and using the Info menu.
There is a supplement to this procedure that allows you to edit planning formulas.