2066623 - Action type (ACTYP) changes while doing APO rules based availability check in sales order

While doing an availability check for the first time in a sales order in VA02 transaction the rules based availability check (RBA) in APO system is carried out with action type 'A' (Create).
In the same example when doing the ATP check for the second time the action type changes to 'B' (Change).
Due to the different action types determined, different rule strategies will be found which can cause different confirmation results.

SAP Supply Chain Management - All versions

SAP enhancement package for SAP Supply Chain Management - All versions

APO_AUFRUFPARAMETER_ERMITTELN, program SAPFV45P, include FV45PAPO, EXIT_SAPLATPC_001, RBA. , KBA , SCM-APO-ATP-RBA , Rules-Based Available-To-Promise (ATP) , Problem