How To Fix SA344 - A relationship cannot exist between two identical entity types

SA344 - Overview

• Message type: E = Error

• Message class: SA -

• Message number: 344

• Message text: A relationship cannot exist between two identical entity types

What causes this issue?

You specified the same entity type. A relationship with the self is not
possible.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Please check the syntax.

Error message extract from SAP system. Copyright SAP SE.

SA344 - Details

• The SAP error message SA344, which states "A relationship cannot exist between two identical entity types," typically occurs in the context of SAP Business Objects or SAP Data Modeling when you are trying to create a relationship between two entities (or tables) that are of the same type. This is not allowed because it can lead to ambiguity in the data model.
  
  Cause:
  The error arises when:
  
  You attempt to define a relationship (like a one-to-many or many-to-many relationship) between two entities that are identical in terms of their type or structure.
  For example, if you have two tables both representing "Customer" and you try to create a relationship between them, the system will throw this error because it cannot differentiate between the two identical entities.
  
  
  Solution:
  To resolve this error, consider the following approaches:
  
  
  Rename or Differentiate Entities: If the entities are indeed meant to represent different concepts, consider renaming one of them or creating a