How To Fix RSM1636 - Compression SID has to be modified, but InfoCube &1 cannot be locked

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM1 - Messages for AWB, Scheduler and Monitor (new)

• Message number: 636

• Message text: Compression SID has to be modified, but InfoCube &1 cannot be locked

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM1636 - Compression SID has to be modified, but InfoCube &1 cannot be locked ?

  The SAP error message RSM1636 indicates that there is an issue with compressing an InfoCube due to the inability to lock the InfoCube for the compression process. This can occur for several reasons, and understanding the cause and potential solutions is essential for resolving the issue.
  Cause:
  
  Active Queries: There may be active queries or reports running against the InfoCube, preventing it from being locked.
  Background Jobs: There could be background jobs that are currently accessing the InfoCube, which also prevents locking.
  Data Loading: If data is being loaded into the InfoCube, it cannot be locked for compression.
  Locks Held by Other Users: Other users or processes may have locks on the InfoCube, preventing the compression process from acquiring the necessary lock.
  System Performance Issues: Sometimes, system performance issues can lead to delays in locking mechanisms.
  
  Solution:
  
  Check Active Queries: Use transaction codes like RSRT (Query Monitor) to check for any active queries that might be using the InfoCube. If there are any, consider stopping them.
  Review Background Jobs: Check for any background jobs that might be running against the InfoCube using transaction SM37. If you find any, you may need to wait for them to complete or cancel them if appropriate.
  Data Load Status: Ensure that there are no ongoing data loads into the InfoCube. You can check this in the Data Warehousing Workbench or using transaction RSA1.
  User Locks: Use transaction SM12 to check for any locks held by users on the InfoCube. If you find locks that are no longer needed, you can delete them (ensure you have the necessary authorizations).
  Retry Compression: Once you have ensured that there are no active queries, background jobs, or locks, you can retry the compression process. Use transaction RSA1 to navigate to the InfoCube and initiate the compression again.
  
  Related Information:
  
  Transaction Codes:
  
  RSA1: Data Warehousing Workbench
  RSRT: Query Monitor
  SM37: Job Monitoring
  SM12: Lock Entries
  
  
  Compression Process: Compression in SAP BW is a process that reduces the size of the data in an InfoCube by aggregating and summarizing data. It is important for performance and storage management.
  Monitoring Tools: Utilize SAP BW monitoring tools to keep track of data loads, query performance, and system locks to prevent such issues in the future.
  
  By following these steps, you should be able to resolve the RSM1636 error and successfully compress your InfoCube.