How To Fix DT413 - Foreign key for field & may not be overwritten by append

DT413 - Overview

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 413

• Message text: Foreign key for field & may not be overwritten by append

What causes this issue?

A foreign key for a field of the appending object was defined in the
append structure, but a foreign key is already defined for the field of
the appending object. You may not overwrite with an append structure.

System Response

The foreign key of the appending structure or table is not changed.

How to fix this error?

Only additional foreign keys may be defined with append structures. You
may not overwrite foreign keys that were already defined. This change
may only be made with a modification of the appending table or
structure.

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.

DT413 - Details

• The SAP error message DT413 indicates that there is an issue with trying to append a field in a database table that has a foreign key constraint. Specifically, the error message states that the foreign key for the specified field cannot be overwritten by an append operation. This typically occurs when you are trying to add a new field to a table that is linked to another table through a foreign key relationship.
  
  Cause:
  
  Foreign Key Constraint: The field you are trying to append is part of a foreign key relationship. This means that it is linked to a primary key in another table, and SAP enforces referential integrity.
  Data Dictionary Restrictions: The Data Dictionary (DDIC) in SAP has restrictions on how fields can be modified, especially when they are part of a foreign key relationship.
  Incorrect Append Structure: You may be trying to append a structure that is not compatible with the existing