CWLAE0119E invalid correlation invocation - the key attribute of the managed role "`0`" is not defined as a simple property of a business object.

Explanation
When invoking the correlation APIs, the managed role must be defined as a simple business object with a key attribute to a simple property.
User response
Use the deprecated maintainRelationship APIs for composite managed roles or change your managed role's key attribute to point to a simple property.