How To Fix RSM2158 - InfoCube &1 is not compressed. Only compressed requests can be reduced.

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM2 - Monitor assistant help texts

• Message number: 158

• Message text: InfoCube &1 is not compressed. Only compressed requests can be reduced.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM2158 - InfoCube &1 is not compressed. Only compressed requests can be reduced. ?

  The SAP error message RSM2158 indicates that the InfoCube you are trying to work with is not compressed. In SAP BW (Business Warehouse), data in InfoCubes is stored in a compressed format to optimize storage and improve query performance. When you attempt to perform certain operations, such as reducing requests or managing data, the system requires that the InfoCube be compressed.
  Cause:
  The primary cause of this error is that the InfoCube has not been compressed. Compression is a process that consolidates data in the InfoCube to reduce its size and improve performance. If the InfoCube contains only uncompressed data, certain operations that rely on compressed data cannot be executed.
  Solution:
  To resolve this error, you need to compress the InfoCube. Here are the steps to do this:
  
  
  Open the Data Warehousing Workbench:
  
  Go to transaction code RSA1 in the SAP GUI.
  
  
  
  Navigate to the InfoCube:
  
  In the Data Warehousing Workbench, locate the InfoCube that is causing the error.
  
  
  
  Compress the InfoCube:
  
  Right-click on the InfoCube and select the option for "Manage" or "Compress".
  Follow the prompts to complete the compression process.
  
  
  
  Check Compression Status:
  
  After compression, you can check the status of the InfoCube to ensure that it is now compressed. You can do this by viewing the InfoCube properties.
  
  
  
  Retry the Operation:
  
  Once the InfoCube is compressed, retry the operation that previously resulted in the error.
  
  
  
  Related Information:
  
  
  Compression Process: Compression in SAP BW is typically done in the background and can take some time depending on the volume of data. It is advisable to perform compression during off-peak hours to minimize the impact on system performance.
  
  
  Monitoring: You can monitor the compression process using transaction RSMO (Data Load Monitor) or RSMO (Data Warehousing Workbench) to see the status of data loads and compressions.
  
  
  Best Practices: Regularly compress InfoCubes to maintain optimal performance and storage efficiency. It is also a good practice to schedule compression jobs as part of your data management strategy.
  
  
  Documentation: For more detailed information, refer to the SAP Help Portal or the specific documentation related to your version of SAP BW.
  
  
  By following these steps, you should be able to resolve the RSM2158 error and successfully manage your InfoCube data.