How To Fix SADL_EXPOSURE080 - Recursive definition of association &1, element '$$projection.&2'

SADL_EXPOSURE080 - Overview

• Message type: E = Error

• Message class: SADL_EXPOSURE - Errors During Exposure Compilation

• Message number: 080

• Message text: Recursive definition of association &1, element '$$projection.&2'

What causes this issue?

CDS view defines association &V1& using projected element &V2& in the
ON-condition. The projected element &V2& is based on a path expression,
which follows the association &V1&.

System Response

Recursive definition of association and element is not allowed.

How to fix this error?

Use target expression '&V1&.&V3&&V4&' instead of '$projection.&V2&' in
the ON-condition

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SADL_EXPOSURE080 - Recursive definition of association &1, element '$$projection.&2' ?

  The SAP error message SADL_EXPOSURE080 indicates that there is a recursive definition of an association in your SAP Data Access Layer (SADL) model. This typically occurs when an association is defined in such a way that it references itself directly or indirectly, leading to a circular reference.
  
  Cause:
  
  Recursive Association: The most common cause is that an association in your data model is defined to point back to itself, either directly or through another association.
  Incorrect Model Design: The data model may not be designed correctly, leading to unintended recursive relationships.
  Projection Issues: The error message mentions $$projection, which suggests that the issue may arise from how projections are defined in your model, potentially leading to recursive references.
  
  
  Solution:
  
  Review Associations: Check the associations defined in your data model. Look for any associations that may be pointing back to the same entity or through another entity that eventually leads back to the original entity.
  Modify Associations: If