How To Fix DT289 - Key field & references a class or interface

DT289 - Overview

• Message type: E = Error

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

• Message number: 289

• Message text: Key field & references a class or interface

What causes this issue?

A class or interface is referenced in key field &V1&.

System Response

The structure is not activated. You can only work with concrete values,
but not with references, in key fields.

How to fix this error?

Only use data elements, direct type entries, or structures.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT289 - Key field & references a class or interface ?

  The SAP error message DT289 typically indicates that there is an issue with a key field in a data structure that references a class or interface. This error can occur in various contexts, such as when working with ABAP programs, data dictionary objects, or when trying to activate or transport objects in the SAP system.
  
  Cause:
  
  Key Field Definition: The key field may not be properly defined in the data dictionary. This can happen if the field is not marked as a key field in the table or structure definition.
  Class/Interface Reference: The key field might be referencing a class or interface that is not correctly implemented or does not exist in the system.
  Inconsistent Data Model: There may be inconsistencies in the data model, such as missing dependencies or incorrect relationships between objects.
  Transport Issues: If the error occurs during a transport, it could be due to missing objects in the transport request.
  
  
  Solution:
  
  Check Data