SAP Message B1416 - Object type & is assigned to fields from more than one segment type

Diagnosis
The object type &V1& has been assigned to fields from more than onesegment type (assignment to a message). However, object types forserialization and lists must be assigned to fields from one segmentwhen assigning an object type to a message.

Procedure
Use another object type or change the assignment of the object type tothe message.