How To Fix DMC_RT_GEN021 - Reactivate the referenced DDIC structure

DMC_RT_GEN021 - Overview

• Message type: E = Error

• Message class: DMC_RT_GEN - DMC: Nachrichten der Generierungfunktionen

• Message number: 021

• Message text: Reactivate the referenced DDIC structure

What causes this issue?

In the error message that was listed immediately before this message, a
data dictionary structure is mentioned. For this structure, an
inconsistency was detected which happens only in rare cases and can
easily be repaired by reactivating this structure.

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?

Invoke transaction SE11 to repair the structure mentioned in the
preceding error message. Specify the structure name and select
"activate" as activity to be performed. This reactivation of the DDIC
structure should remove the inconsistency. Then the activity to generate
the runtime objects can be repeated without problems.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_RT_GEN021 - Reactivate the referenced DDIC structure ?

  The SAP error message DMC_RT_GEN021, which states "Reactivate the referenced DDIC structure," typically occurs in the context of Data Migration Cockpit (DMC) or when working with data structures in SAP. This error indicates that there is an issue with a Data Dictionary (DDIC) structure that needs to be reactivated.
  
  Cause:
  
  Inactive DDIC Structure: The DDIC structure that is referenced in your data migration or data processing task is currently inactive. This can happen if the structure was modified or if it was never activated after being created.
  Transport Issues: If the DDIC structure was transported from another system and not activated in the target system, it may lead to this error.
  Changes in Data Model: If there have been changes in the underlying data model or if the structure has been deleted or renamed, it can cause this error.
  
  
  Solution:
  
  
  Reactivate the DDIC Structure:
  
  Go to the Data Dictionary (transaction SE11).
  Enter the name of the DDIC structure