SAP Message USMD6547 - No SMT mapping found for entity type &1 in package &2, step &3

Diagnosis No SMT mapping was found (in distribution step &V3& of master datapackage &V2&) for distributing the data of entity type &V1&. Procedure If entity type &V1& has the storage and use type 1, specify an SMT mapping in the definition of thedistribution service under Mapping Parameters.