How To Fix P0138 - Window & already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: P0 - Messages for Transactions PE01, PE02 and PE03

• Message number: 138

• Message text: Window & already exists

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message P0138 - Window & already exists ?

  The SAP error message "P0138 Window & already exists" typically indicates that there is an attempt to create a new window or session in the SAP GUI that already exists. This can happen in various scenarios, such as when a user tries to open a new session or window with the same identifier or name as an existing one.
  Cause:
  
  Duplicate Session/Window: The error usually arises when a user tries to create a new session or window that has the same identifier as an already open session or window.
  System Configuration: In some cases, system settings or configurations may restrict the creation of multiple instances of the same window.
  User Actions: Users may inadvertently try to open the same transaction or report multiple times.
  
  Solution:
  
  Close Existing Window: Check if the window or session is already open. If it is, close it before trying to open a new one.
  Use Different Transaction Codes: If you need to work on multiple instances, consider using different transaction codes or parameters that do not conflict with existing sessions.
  Log Off and Log Back In: If the issue persists, logging off from the SAP system and logging back in can sometimes resolve session-related issues.
  Clear SAP GUI Cache: Clearing the SAP GUI cache may help if the issue is related to cached data.
  Check for System Updates: Ensure that your SAP GUI is up to date, as updates may fix bugs related to session management.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  User Documentation: Refer to SAP user documentation for guidelines on managing sessions and windows effectively.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after trying the above solutions, it may be beneficial to contact your SAP support team for further assistance.