How To Fix MDG_MDF108 - DDIC structures are being regenerated

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_MDF - Master Data: Messages

• Message number: 108

• Message text: DDIC structures are being regenerated

What causes this issue?

The technical properties of the InfoObject that belongs to
characteristic &V1& have changed.

System Response

The local database tables, data elements, and structures that were
generated for this characteristic need to be adjusted.

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_MDF108 - DDIC structures are being regenerated ?

  The SAP error message MDG_MDF108 indicates that there is an issue related to the regeneration of Data Dictionary (DDIC) structures in the context of Master Data Governance (MDG). This error typically arises when there are inconsistencies or issues with the underlying data model or when changes have been made to the data model that require the regeneration of DDIC structures.
  Cause:
  
  Changes in Data Model: If there have been recent changes to the data model (like adding or modifying fields), the system may need to regenerate the DDIC structures to reflect these changes.
  Inconsistencies: There may be inconsistencies in the data model that prevent the system from properly regenerating the structures.
  Transport Issues: If changes were transported from a development environment to a production environment, there might be issues with the transport that need to be resolved.
  Missing Authorizations: Sometimes, the user executing the regeneration may not have the necessary authorizations to perform the action.
  
  Solution:
  
  
  Regenerate DDIC Structures: 
  
  You can manually trigger the regeneration of DDIC structures. This can typically be done through transaction codes like MDGIMG or MDG_MDF where you can find options to regenerate the structures.
  Alternatively, you can use transaction SE11 to check the relevant tables and structures and regenerate them if necessary.
  
  
  
  Check for Inconsistencies: 
  
  Use transaction SLG1 to check the application log for any errors or warnings that might indicate what is causing the issue.
  Review the data model for any inconsistencies or errors.
  
  
  
  Transport Management: 
  
  If the issue is related to transport, ensure that all necessary objects have been transported correctly and that there are no missing dependencies.
  
  
  
  Authorization Check: 
  
  Ensure that the user has the necessary authorizations to perform the regeneration. This may involve checking roles and authorizations in transaction PFCG.
  
  
  
  Consult Documentation: 
  
  Refer to SAP Notes and documentation related to MDG and the specific version you are using. There may be specific notes addressing this error.
  
  
  
  System Restart: 
  
  In some cases, a system restart or a refresh of the application server may help resolve temporary issues.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or patches related to this error.
  MDG Configuration: Review the configuration settings in the MDG application to ensure everything is set up correctly.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the problem persists after trying the above solutions, it may be necessary to engage SAP support for further assistance.