How To Fix ACMDT_OBJSTATUS318 - Aggregates's timestamp differs from the timestamp of the active DCL

SAP Error Message - Details

• Message type: E = Error

• Message class: ACMDT_OBJSTATUS - ACM: Messages for the Object-Status of Designtime-Objects

• Message number: 318

• Message text: Aggregates's timestamp differs from the timestamp of the active DCL

Self-Explanatory Message

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• What is the cause and solution for SAP error message ACMDT_OBJSTATUS318 - Aggregates's timestamp differs from the timestamp of the active DCL ?

  The SAP error message ACMDT_OBJSTATUS318 indicates that there is a discrepancy between the timestamp of an aggregate and the timestamp of the active Data Collection Layer (DCL). This typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA environments where data aggregation and collection are managed.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Data Inconsistency: The aggregate's timestamp may not match the active DCL's timestamp due to changes in the underlying data or structure that have not been reflected in the aggregate.
  Data Load Issues: If there were issues during data loading processes, such as failed loads or incomplete updates, this can lead to mismatched timestamps.
  Changes in DCL: If the DCL has been modified (e.g., new fields added, changes in data sources) after the aggregate was created, the timestamps will differ.
  Manual Changes: Manual adjustments to the aggregates or DCLs without proper synchronization can also lead to this error.
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check the DCL and Aggregate: Verify the timestamps of both the aggregate and the active DCL. You can do this through the SAP BW or HANA modeling tools.
  
  
  Rebuild the Aggregate: If the aggregate is outdated, you may need to rebuild it. This can be done by:
  
  Deleting the existing aggregate.
  Recreating it to ensure it aligns with the current DCL.
  
  
  
  Refresh the Data: If the issue is related to data loading, ensure that all data loads are completed successfully. You may need to re-run the data load process.
  
  
  Check for Changes: Review any recent changes made to the DCL or the underlying data model. If changes were made, ensure that aggregates are updated accordingly.
  
  
  Use Transaction Codes: You can use transaction codes like RSA1 (Data Warehousing Workbench) to manage and monitor aggregates and DCLs.
  
  
  Consult Logs: Check the system logs for any additional error messages or warnings that might provide more context about the issue.
  
  
  SAP Notes and Documentation: Look for relevant SAP Notes or documentation that may provide specific guidance or patches related to this error.
  
  
  Related Information:
  
  SAP BW Documentation: Familiarize yourself with the SAP BW documentation regarding aggregates and DCLs to understand their relationship and management.
  Performance Considerations: Keep in mind that aggregates are used to improve query performance, so maintaining their accuracy is crucial for optimal system performance.
  Version-Specific Issues: Be aware that certain versions of SAP may have specific bugs or issues related to aggregates and DCLs, so always check for updates or patches.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.