ME899 - Purchase order &1 is already displayed in the same session

SAP Error Message - Details

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 899

• Message text: Purchase order &1 is already displayed in the same session

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ME899 - Purchase order &1 is already displayed in the same session ?

  The SAP error message ME899, which states "Purchase order &1 is already displayed in the same session," typically occurs when a user attempts to open a purchase order (PO) that is already being viewed in the same session. This is a common issue in SAP when multiple attempts are made to access the same document.
  Cause:
  
  Multiple Access Attempts: The user is trying to open the same purchase order in the same session or window.
  Session Management: SAP restricts the opening of the same document in a single session to prevent data inconsistencies and confusion.
  
  Solution:
  To resolve the ME899 error, you can try the following steps:
  
  
  Close Existing Document: Check if the purchase order is already open in another tab or window. If it is, close that instance before trying to open it again.
  
  
  Use a New Session: Instead of opening the purchase order in the same session, you can open a new session. You can do this by:
  
  Using the menu path: System > Create Session (or pressing Ctrl + N).
  Then, in the new session, try to access the purchase order again.
  
  
  
  Log Off and Log Back In: If the issue persists, logging off from SAP and then logging back in can help clear any session-related issues.
  
  
  Check for Background Processes: Sometimes, background processes or transactions may be holding onto the document. Ensure that no other transactions are running that might be accessing the same purchase order.
  
  
  Clear Cache: If you are using a web-based SAP interface, clearing the browser cache or refreshing the session may help.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message. Sometimes, there may be known issues or fixes provided by SAP.
  User Training: Ensure that users are trained on how to manage sessions effectively in SAP to avoid this error in the future.
  System Configuration: In some cases, system configuration settings may affect how documents are handled in sessions. Consult with your SAP Basis team if you suspect this might be the case.
  
  If the problem continues after trying these solutions, it may be beneficial to reach out to your SAP support team for further assistance.