How To Fix W8088 - Source & corresponds to object type & and not &

SAP Error Message - Details

• Message type: E = Error

• Message class: W8 - Workflow: Expressions, data flow

• Message number: 088

• Message text: Source & corresponds to object type & and not &

What causes this issue?

The two partners of the value assignment in a binding definition must
be defined by <zh>identical data types</> or at least <zh>compatible
data types</>.
Data types expressed with an <zh>object type</> count as compatible if:
no object type is explicitly specified for the target element,
(assignment: specified object reference ==> unspecified object
reference)
the source element references a subtype of the object type which is
referenced by the target element
(assignment: object reference subtype ==> object reference parent type)
In the binding definition to which this warning relates, you are
assigning two object types to each other which are not compatible
according to these guidelines, but do however possess compatible key
structures: Object type &v2& is not a subtype of object type &v3& but
both these object types have an identical key structure according to
domain.
No runtime inconsistencies occur via a binding of this kind, but
semantic accuracy cannot be ensured because of the object type
hierarchy.

System Response

This is a warning !

How to fix this error?

Please consider the accuracy of this binding definition.

Error message extract from SAP system. Copyright SAP SE.