How To Fix RSDD055 - Change run is not possible, because aggregates are being filled

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDD - Message class for data manager

• Message number: 055

• Message text: Change run is not possible, because aggregates are being filled

Self-Explanatory Message

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• What is the cause and solution for SAP error message RSDD055 - Change run is not possible, because aggregates are being filled ?

  The SAP error message RSDD055 indicates that a change run cannot be executed because aggregates are currently being filled. This situation typically arises in the context of SAP BW (Business Warehouse) when you attempt to make changes to a data model or InfoProvider while aggregates are still being processed.
  Cause:
  
  Ongoing Aggregate Filling: The primary cause of this error is that the system is in the process of filling aggregates for the InfoProvider you are trying to change. During this time, the system locks the InfoProvider to ensure data consistency.
  Long-Running Processes: If the aggregate filling process takes a long time due to a large volume of data or complex calculations, it can lead to this error.
  Concurrent Processes: If multiple users or processes are trying to access or modify the same InfoProvider simultaneously, it can lead to conflicts.
  
  Solution:
  
  Wait for Completion: The simplest solution is to wait until the aggregate filling process is complete. You can monitor the status of the process in the SAP BW system.
  Check Process Chains: If you are using process chains, check the status of the process chain that is responsible for filling the aggregates. Ensure that it has completed successfully.
  Cancel the Process: If you determine that the aggregate filling process is stuck or taking too long, you may need to cancel it. This can be done through the SAP BW administration tools, but be cautious as this may lead to data inconsistencies.
  Review Scheduling: If this issue occurs frequently, consider reviewing the scheduling of your data loads and aggregate filling processes to avoid overlaps that could lead to this error.
  System Performance: Ensure that your system has adequate resources (CPU, memory, etc.) to handle the data processing load efficiently.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like RSA1 (Data Warehousing Workbench) to monitor and manage your InfoProviders and aggregates.
  Logs and Monitoring: Check the logs for the process chains and data loads to identify any issues that may be causing delays in aggregate filling.
  SAP Notes: Look for relevant SAP Notes that may provide additional insights or patches related to this error message.
  Documentation: Refer to SAP BW documentation for best practices on managing aggregates and data loading processes.
  
  By following these steps, you should be able to resolve the RSDD055 error and successfully execute your change run.