How To Fix RSM1668 - No free temp table available. Start the extraction again later

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 668

• Message text: No free temp table available. Start the extraction again later

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSM1668 - No free temp table available. Start the extraction again later ?

  The SAP error message RSM1668, which states "No free temp table available. Start the extraction again later," typically occurs in the context of data extraction processes, particularly when using SAP BW (Business Warehouse) or SAP ECC (Enterprise Central Component). This error indicates that the system has run out of temporary tables that are required for data extraction.
  Cause:
  
  Exhaustion of Temporary Tables: SAP uses temporary tables to store intermediate data during extraction processes. If all available temporary tables are in use, new extraction requests cannot be processed.
  Long-running Processes: If there are long-running data extraction processes or if there are many concurrent extractions, it can lead to the exhaustion of temporary tables.
  Configuration Limits: The system may have a configuration limit on the number of temporary tables that can be created or used at any given time.
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for some time and then retry the extraction. This allows any ongoing processes to complete and free up temporary tables.
  Monitor and Terminate Long-running Processes: Check for any long-running extraction processes that may be holding onto temporary tables. If necessary, terminate these processes to free up resources.
  Increase Temporary Table Limits: If the issue persists, consider increasing the number of temporary tables allowed in the system. This may require adjustments in the system configuration or consultation with your SAP Basis team.
  Optimize Data Extraction: Review and optimize the data extraction processes to ensure they are efficient and do not hold onto temporary tables longer than necessary.
  System Maintenance: Regularly perform system maintenance to clear out any unnecessary data or processes that may be consuming resources.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SM37 to monitor background jobs and see if there are any jobs that are stuck or taking too long.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  System Logs: Review system logs for any additional error messages or warnings that may provide context for the issue.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem continues after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.