How To Fix AD297 - Foreign key &-& (rel. cat. DYNP -> CARD superfluous)

SAP Error Message - Details

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 297

• Message text: Foreign key &-& (rel. cat. DYNP -> CARD superfluous)

What causes this issue?

It does not make sense to specify a cardinality for relationships
of type DYNP. DYNP does not indicate a relationship in
the conventional sense, but merely a linking of tables that consist
only of the foreign key definition and thus serve as a form of check
during screen entry using the mask processor. This applies, for
example, to a foreign key definition of an internal table that has no
connection with the data base.
Apart from the foreign key definition, the actual relationships between
tables consist of the relationship type, the cardinality, and possibly
the short text and the documentation which describe the relationship in
more detail.

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AD297 - Foreign key &-& (rel. cat. DYNP -> CARD superfluous) ?

  The SAP error message AD297, which states "Foreign key &-& (rel. cat. DYNP -> CARD superfluous)," typically occurs in the context of data dictionary objects, particularly when dealing with foreign key relationships in database tables. This error indicates that there is a foreign key relationship defined in the data dictionary that is not necessary or is incorrectly defined.
  Cause:
  
  Superfluous Foreign Key: The foreign key relationship defined in the data dictionary is not needed because it does not serve a purpose in maintaining referential integrity.
  Incorrect Configuration: The foreign key may be pointing to a field or table that does not exist or is not relevant to the current context.
  Redundant Relationships: There may be multiple foreign keys defined that point to the same table or field, making one or more of them redundant.
  
  Solution:
  
  Review Foreign Key Definitions: Check the foreign key definitions in the data dictionary (transaction SE11) for the relevant table. Ensure that the foreign key relationships are necessary and correctly defined.
  Remove or Modify Foreign Keys: If you identify that a foreign key is indeed superfluous, you can remove it or modify it to ensure it serves a valid purpose. This can be done in transaction SE11 by editing the table and adjusting the foreign key settings.
  Check Related Tables: Ensure that the tables involved in the foreign key relationship are correctly defined and that the fields they reference exist and are appropriate for the relationship.
  Transport Requests: If changes are made in a development environment, ensure that they are properly transported to the quality and production environments.
  
  Related Information:
  
  Transaction Codes: Use SE11 (Data Dictionary) to view and edit table definitions and foreign keys.
  Documentation: Refer to SAP documentation for guidelines on defining foreign keys and maintaining data integrity.
  Testing: After making changes, perform thorough testing to ensure that the application behaves as expected and that no other issues arise from the modification of foreign keys.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP Basis or ABAP consultant who can provide deeper insights into the specific configuration and context of your SAP system.