How To Fix DT288 - Field &: Class or interface & not active/implemented

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 288

• Message text: Field &: Class or interface & not active/implemented

What causes this issue?

In field &V1& you use a reference to a class or an interface &V2&, but
this object you are referencing is not active and/or is not
implemented.

System Response

The structure cannot be activated because only active, implemented
classes or interfaces can be referenced.

How to fix this error?

Activate and implement the classes and interfaces used. Then activate
them again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT288 - Field &: Class or interface & not active/implemented ?

  The SAP error message DT288 indicates that a specific field or class/interface is not active or implemented in the system. This error typically arises in the context of ABAP programming or when working with data dictionary objects. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Inactive Object: The class or interface referenced in the error message is not active. This can happen if the object has been created but not activated.
  Missing Implementation: The class or interface may not have been fully implemented, meaning that the necessary methods or attributes are not defined.
  Transport Issues: If the object was transported from another system, it may not have been activated in the target system.
  Namespace Issues: If the class or interface is in a specific namespace, it may not be accessible due to authorization or visibility issues.
  
  Solution:
  
  
  Activate the Object:
  
  Go to the ABAP Workbench (Transaction SE80 or SE11).
  Locate the class or interface that is causing the error.
  Activate the object by selecting it and clicking on the "Activate" button (or using the shortcut Ctrl+F3).
  
  
  
  Check Implementation:
  
  Ensure that all required methods and attributes are implemented in the class or interface.
  If the class is abstract or an interface, make sure that any concrete classes that implement it are also active.
  
  
  
  Transport Management:
  
  If the object was transported, check the transport logs to ensure that it was successfully imported and activated in the target system.
  If necessary, re-import the transport request.
  
  
  
  Check Authorizations:
  
  Ensure that you have the necessary authorizations to access the class or interface.
  If the object is in a specific namespace, verify that your user has access to that namespace.
  
  
  
  Debugging:
  
  If the error persists, consider debugging the program or transaction that is triggering the error to identify the exact point of failure.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SE80: Object Navigator
  SE11: Data Dictionary
  SE24: Class Builder
  SE37: Function Module
  
  
  Documentation: Refer to SAP Help Portal or the ABAP documentation for more details on class and interface implementation.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  
  By following these steps, you should be able to resolve the DT288 error and ensure that the class or interface is properly activated and implemented in your SAP system.