How To Fix SWDP_WB_TOOL607 - Only 8 controller uses, maximum, can be processed simultaneously

SAP Error Message - Details

• Message type: E = Error

• Message class: SWDP_WB_TOOL - Web Dynpro: Messages for Workbench Tools

• Message number: 607

• Message text: Only 8 controller uses, maximum, can be processed simultaneously

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWDP_WB_TOOL607 - Only 8 controller uses, maximum, can be processed simultaneously ?

  The SAP error message SWDP_WB_TOOL607 indicates that you have reached the maximum limit of 8 simultaneous controller uses in the SAP Web Dynpro environment. This typically occurs when there are too many active sessions or instances of a Web Dynpro application running at the same time.
  Cause:
  
  Exceeding Concurrent Sessions: The error is triggered when more than 8 instances of a Web Dynpro controller are being processed simultaneously. This can happen due to:
  
  Multiple users accessing the same application concurrently.
  Long-running processes that hold onto controller instances.
  Inefficient coding or design that leads to excessive controller instantiation.
  
  
  
  Solution:
  
  
  Limit Concurrent Sessions: Ensure that the number of concurrent users accessing the application does not exceed the limit. This may involve:
  
  Implementing user session management to limit the number of active sessions.
  Optimizing the application to reduce the number of simultaneous requests.
  
  
  
  Optimize Application Design:
  
  Review the Web Dynpro application design to ensure that controllers are being used efficiently.
  Avoid unnecessary instantiation of controllers. Use shared controllers where possible.
  Implement proper cleanup of controller instances after use.
  
  
  
  Increase the Limit: If your application genuinely requires more than 8 concurrent sessions, you may consider increasing the limit. This can be done by:
  
  Modifying the configuration settings in the SAP system. However, this should be done with caution and typically requires administrative access and thorough testing.
  
  
  
  Monitor and Analyze: Use transaction codes like ST22 (Dump Analysis) and SM21 (System Log) to monitor for any related issues or performance bottlenecks that may be causing excessive controller usage.
  
  
  Consult Documentation: Refer to the official SAP documentation or support notes related to Web Dynpro for any specific recommendations or updates regarding this error.
  
  
  Related Information:
  
  Web Dynpro Architecture: Understanding the architecture of Web Dynpro can help in optimizing the application and managing controller instances effectively.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Performance Tuning: Consider performance tuning of the Web Dynpro application to ensure it runs efficiently under load.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.