In SAP S/4HANA's advanced Available-to-Promise (aATP), Backorder Processing (BOP) uses a fixed sequence of strategies: Win, Gain, Redistribute, Fill, and Lose. The 'Win' strategy is always executed first, giving it the highest processing priority. Its function is to protect existing confirmations for high-priority requirements, ensuring they are not altered by subsequent steps. While the 'Win' strategy itself protects stock rather than releasing it, it is the inaugural and highest-priority step in the overall BOP run, which aims to reallocate stock, a process that involves releasing confirmations from lower-priority orders via the 'Lose' strategy later in the sequence.

A. Lose: This strategy directly releases (deconfirms) stock from low-priority orders but is executed last in the standard sequence, not first.

B. Gain: This strategy consumes available stock to improve order confirmations and is second in the processing sequence. It does not release stock.

D. Fill: This strategy also consumes available stock to confirm as much as possible for remaining orders and is processed late in the sequence, before 'Lose'.

1. SAP Help Portal

SAP S/4HANA

"Strategies for Requirement Classification": This document explicitly states the fixed execution order of BOP strategies. It confirms

"The strategies are always executed in a fixed order: Win

Gain

Redistribute

Fill

Lose." It also defines the 'Win' strategy's purpose as protecting quantities for high-priority requirements. (Path: SAP S/4HANA -> Product Assistance -> Sales -> Availability Check and Backorder Processing -> Backorder Processing (BOP) -> Strategies for Requirement Classification).

2. SAP S/4HANA Training Courseware

"S4605 - Advanced Availability-to-Promise in SAP S/4HANA": This official course material details the BOP framework

reinforcing that the 'Win' segment is processed first to secure confirmations for the most critical orders before any reallocation or de-allocation occurs in subsequent segments.