Standards fields in ReplenishmentOrderNotification_In to populate external PO number

Hi All,

We are trying to capture purchase order number of an external customer in the PO (ECC) and populated the same field in SNC via so that the field is visible on the web UI. we are using idoc with message type is PORDCR1in ECC.This would make us modify only the ECC field and not the PI/SNC fields.

Is there any field in the standard mapping in PI and SNC(ReplenishmentOrderNotification_In) which could be used to populated external customer number on the web UI.

Please let me know your inputs on the same.

Thanks,

Preethi