SAP Message SMO8_FLOWDEF016 - No validation module defined in SMW3BDOCIF - no inbound processing

Diagnosis
For BDoc type &V1& no validation module is defined.

System Response
Inbound processing for BDoc messages of BDoc type &V1& is not possible.

Procedure
Implement a validation function for BDoc type &V1& and maintain tableSMW3BDOCIF.