How To Fix RSAODS021 - Maximum partition &1 reached for PSA table &2

SAP Error Message - Details

• Message type: E = Error

• Message class: RSAODS - Messages for the operational data store

• Message number: 021

• Message text: Maximum partition &1 reached for PSA table &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSAODS021 - Maximum partition &1 reached for PSA table &2 ?

  The SAP error message RSAODS021 indicates that the maximum number of partitions for a Persistent Staging Area (PSA) table has been reached. This typically occurs in the context of SAP BW (Business Warehouse) when dealing with data loading processes.
  Cause:
  The error arises when the number of partitions for a specific PSA table exceeds the defined limit. Each PSA table can have a maximum number of partitions, and once this limit is reached, no additional data can be loaded into that table until some partitions are deleted or managed.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Current Partitions: Use transaction code RSA1 to access the Data Warehousing Workbench. Navigate to the relevant PSA table and check how many partitions currently exist.
  
  
  Delete Old Partitions: If there are old or unnecessary partitions that can be deleted, you can do so. This can be done through the Data Warehousing Workbench or by using the relevant transaction codes (e.g., RSA3 for data extraction).
  
  
  Manage Data Load: If you are frequently hitting the partition limit, consider adjusting your data load strategy. This might involve:
  
  Loading data in smaller batches.
  Scheduling data loads at different times to avoid hitting the partition limit.
  
  
  
  Increase Partition Limit: If your system allows it and if it is appropriate for your use case, you may consider increasing the maximum number of partitions for the PSA table. This typically requires configuration changes and should be done with caution.
  
  
  Monitor Data Growth: Regularly monitor the growth of data in your PSA tables and implement data archiving or cleanup strategies to prevent hitting the partition limit in the future.
  
  
  Related Information:
  
  PSA Tables: These are temporary storage areas in SAP BW where data is stored before it is transformed and loaded into the data warehouse.
  Partitioning: Partitioning is a method used to improve performance and manageability of large tables by dividing them into smaller, more manageable pieces.
  SAP Notes: Check SAP Notes for any specific recommendations or patches related to this error message, as SAP may provide updates or best practices for managing PSA tables.
  
  By following these steps, you should be able to resolve the RSAODS021 error and manage your PSA tables effectively.