Preselection of Suitable Substitutions 

Use

You use this function to chose a combination of substitutions from the substitution list that the simulative rule-based ATP check determines. The system then carries out a new rule-based ATP check for these substitutions.

Integration

This function is linked to the following global ATP check functions:

●      You cannot use the preselection of suitable substitutions (substitution preselection) if you have also activated the multi-item single delivery location function.

●      You can only use substitution preselection in combination with backorder processing if you use the Business Add-In (BAdI) BAdI: Preselection of Suitable Substitutions. For more information, see the Implementation Guide (IMG) for SAP SCM under Advanced Planning and Optimization → Global Available-to-Promise (Global ATP) → Enhancements → Rules  → BAdI: Preselection of Suitable Substitutions.

●      If you activate substitution preselection, the system ignores the setting that you may have made in the integrated rule maintenance for the maximum number of permitted substitutions.

●      If you activate substitution preselection, the system automatically sets the following indicators in the check instruction:

○       Activation of Rules-Based ATP Check

○       Start Immediat. (Direct Execution of Rules-Based ATP Check)

○       Create Subitem in Rules-Based ATP Check

For more information, see the IMG for SAP SCM under Advanced Planning and Optimization → Global Available-to-Promise (Global ATP) → General Settings → Maintain Check Instructions.

Prerequisites

You made the settings for substitution preselection.

Activities

The system performs a simulative rules-based ATP check for each item (without temporary quantity commitments) and determines substitutions for the input location product. The substitution list appears on the Preselection of Suitable Substitutions (Simulation) screen. On this screen, you can select the most suitable combination of substitutions for each item, by setting the Adopt/Reject Delivery Proposal indicator. You can also enter a different quantity for the proposed substitution.

Since rounding can change the quantities you changed, we recommend that you do not use substitution preselection in combination with rounding.

The system carries out a rules-based ATP check (with temporary quantity commitments) for the substitutions that you choose.

After the rules-based ATP check, the system displays the results screen only under the following conditions:

●      The system could not completely confirm the quantity that you changed for at least one of the items.

●      Not all of the items checked were part of substitution preselection.