How To Fix DBMAN971 - Unable to determine the delta

SAP Error Message - Details

• Message type: E = Error

• Message class: DBMAN - Data Manager Message Class

• Message number: 971

• Message text: Unable to determine the delta

What causes this issue?

It is only possible to determine a delta when writing an InfoCube if the
following conditions are met:
The InfoCube contains cumulative key figures only
The InfoCube does not contain any non-cumulative key figures
The system is Release 7.01 or higher.
Delta loading must also be explicitly permitted for this InfoCube.

System Response

Writing is terminated.

How to fix this error?

Check that all of the above conditions are met.

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

You can permit delta loading for an InfoCube by choosing "Extras" -
"Data Load Properties" in the menu in transaction RSDCUBE.

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 DBMAN971 - Unable to determine the delta ?

  The SAP error message DBMAN971: Unable to determine the delta typically occurs in the context of data extraction processes, particularly when using SAP Data Services or SAP BW (Business Warehouse) for data loading and extraction. This error indicates that the system is unable to identify the changes (delta) that have occurred in the source data since the last extraction.
  Causes:
  
  Missing Delta Mechanism: The delta mechanism may not be properly configured. This can happen if the source system does not have a delta-enabled data source.
  Incorrect Delta Initialization: If the delta initialization process was not completed successfully, the system may not have a reference point to determine the changes.
  Data Source Issues: The underlying data source may have issues, such as missing records or inconsistencies that prevent the delta from being calculated.
  Technical Issues: There may be technical issues with the database or the connection between the source and target systems.
  Authorization Issues: The user executing the extraction may not have the necessary authorizations to access the delta information.
  
  Solutions:
  
  Check Delta Configuration: Ensure that the data source is configured for delta extraction. This may involve checking the settings in the source system or the data flow in SAP BW.
  Perform Delta Initialization: If the delta initialization has not been performed, you may need to execute it to establish a baseline for future delta extractions.
  Verify Data Source: Check the integrity of the data source. Ensure that the data is consistent and that there are no missing records.
  Review Logs: Look at the logs for more detailed error messages that can provide insights into what might be causing the issue.
  Check Authorizations: Ensure that the user has the necessary permissions to access the data and perform the extraction.
  Consult SAP Notes: Search for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  Related Information:
  
  SAP BW Delta Mechanism: Understanding how delta extraction works in SAP BW can help in troubleshooting. Delta extraction typically relies on timestamps or change logs to identify new or changed records.
  SAP Data Services: If you are using SAP Data Services, familiarize yourself with its data flow and transformation capabilities, as well as how it handles delta extractions.
  SAP Community and Forums: Engaging with the SAP community through forums can provide additional insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.