How To Fix DMC_GENERAL408 - Timestamp for DDIC activation of table &1 has changed

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_GENERAL - MWB: General Messages

• Message number: 408

• Message text: Timestamp for DDIC activation of table &1 has changed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_GENERAL408 - Timestamp for DDIC activation of table &1 has changed ?

  The SAP error message DMC_GENERAL408 indicates that there is a discrepancy in the timestamp for the Data Dictionary (DDIC) activation of a table. This typically occurs during the Data Migration Cockpit (DMC) process when the system detects that the metadata for a table has changed since it was last activated. This can happen for various reasons, such as changes made to the table structure, data types, or other attributes.
  Cause:
  
  Table Structure Changes: The table structure may have been modified after the last activation, which can include adding or removing fields, changing data types, or altering constraints.
  Concurrent Modifications: Another user or process may have activated changes to the same table while your process was running.
  Transport Issues: If the table was transported from another system, the timestamps may not match, leading to this error.
  System Configuration Changes: Changes in system configuration or updates to the SAP system can also lead to discrepancies in timestamps.
  
  Solution:
  
  Re-activate the Table: Go to the Data Dictionary (SE11) and re-activate the table that is causing the issue. This will update the timestamp and resolve the discrepancy.
  Check for Concurrent Changes: Ensure that no other processes are modifying the same table at the same time. If necessary, coordinate with other users to avoid conflicts.
  Review Transport Requests: If the table was recently transported, check the transport logs to ensure that all changes were applied correctly and that there are no pending changes.
  Check for Modifications: Review any recent modifications made to the table and ensure that they are correctly reflected in the DDIC.
  Clear Buffer: Sometimes, clearing the buffer can help resolve issues related to outdated metadata. You can do this using transaction code SICF or SE14 (Database Utility).
  Consult SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  Related Information:
  
  Transaction Codes: 
  
  SE11: Data Dictionary
  SE14: Database Utility
  SICF: ICF Service Maintenance
  
  
  SAP Notes: Search the SAP Support Portal for notes related to DMC_GENERAL408 or similar issues for specific patches or updates.
  Documentation: Review the SAP Help Portal for documentation on the Data Migration Cockpit and related processes.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.