Here we would like to draw your attention to OONC transaction code in SAP. As we know it is being used in the SAP BC-BMT (Business Management in Basis) component which is coming under BC module (BASIS).OONC is a transaction code used for No. Assignment for All Plan Versions in SAP.
It comes under the package SP00.When we execute this transaction code, RHCUST01 is the normal standard SAP program that is being executed in background.
Transaction OONC technical data table
|Purpose||No. Assignment for All Plan Versions|