Message SAP XC221 - Supply relationship with identical start and dest. locations not allowed

Diagnosis Supply relationships from the ERP system are created in SAP APO astransportation lanes. Transportation lanes whose start and destinationlocations are identical are not allowed in SAP APO. System Response The system does not create the transportation lane from &V1& to &V1&. Procedure Check the supply relationship in the sending system and thecorresponding transportation lane in SAP APO.