Field help (SCDMODSAI) @ L.V. Expertise X3

This field defines the scheduling method for a work order.

Backward. With 'backward', or upstream scheduling the system calculates the production start date (field Start date) from the end or required completion date (field End date).
Forward. With 'forward', or downstream scheduling the system calculates the required completion date (field End date) from the defined production start date (field Start date).
By selection. The scheduling mode (Backward/Forward) is set manually.

These calculations rely on the production lead time, reduction factor and economic quantity defined on the product-site record.

If this entry transaction code is dedicated to the automatic work order generation functions, that is the Transaction reserved for automatic generation (field TRSAUTO) check box is selected, you must select either Backward or Forward.