To increase the planning security as well as the delivery availability, the IDES model company checks the material availability within the sales order. The availability check is done to secure coverage of requirements by either stock or planned inward stock movement. This helps recognizing the availability on requirements date already when entering the sales order or whether it is necessary to plan ahead in a different way to ensure material availability.

If the R/3 System detects a material shortfall, it automatically assigns the quantity available to the IDES sales via a deliberate backorder processing.

The process is about the availabiltiy check based on the ATP quantity. When calculating the ATP quantity (ATP = available to promise) the R/3 System checks whether all outward movements are covered by existing inward movements and whether the inward movements contain minor quantities still open for incoming outward movements. These minor quantities not yet assigned form the ATP quantity.