How To Fix MDG_MDF109 - DDIC structures are being regenerated

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_MDF - Master Data: Messages

• Message number: 109

• Message text: DDIC structures are being regenerated

What causes this issue?

The properties of characteristic &V1& have have changed.
The characteristic has already been regenerated as part of another
application instance.

System Response

The current application instance must also be regenerated so that it can
be adjusted with these changes.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

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 MDG_MDF109 - DDIC structures are being regenerated ?

  The SAP error message MDG_MDF109 indicates that there is an issue related to the regeneration of Data Dictionary (DDIC) structures in the context of Master Data Governance (MDG). This typically occurs when there are inconsistencies or changes in the underlying data model that require the regeneration of the DDIC structures.
  Cause:
  
  Changes in Data Model: If there have been recent changes to the data model, such as adding or modifying fields in the MDG data model, the corresponding DDIC structures need to be regenerated.
  Inconsistent State: The system may be in an inconsistent state due to previous errors or incomplete processes that did not allow for proper generation of DDIC structures.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), there may be issues with the transport that prevent the DDIC structures from being correctly generated.
  
  Solution:
  
  
  Regenerate DDIC Structures:
  
  Go to the transaction code MDGIMG.
  Navigate to the relevant data model and select the option to regenerate the DDIC structures.
  Follow the prompts to complete the regeneration process.
  
  
  
  Check for Inconsistencies:
  
  Use transaction SE11 to check the DDIC objects related to your MDG data model.
  Ensure that all necessary objects are active and consistent.
  
  
  
  Transport Management:
  
  If the issue is related to transport, ensure that all necessary objects have been transported correctly.
  Check the transport logs for any errors or warnings that may indicate issues with the transport.
  
  
  
  System Restart: In some cases, a system restart may help clear temporary inconsistencies.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional guidance.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and MDGIMG (MDG Implementation Guide).
  Documentation: Review the official SAP documentation for Master Data Governance to understand the data model and its components better.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to resolve the MDG_MDF109 error and ensure that your DDIC structures are correctly regenerated.