How To Fix /SAPPO/MSG400 - ****Selection screen****

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPPO/MSG -

• Message number: 400

• Message text: ****Selection screen****

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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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPPO/MSG400 - ****Selection screen**** ?

  The SAP error message /SAPPO/MSG400 ****Selection screen**** typically indicates that there is an issue with the selection criteria or parameters provided on a selection screen in an SAP application, particularly in the context of SAP Purchase Order (PO) processing or related transactions.
  Cause:
  
  Missing or Incorrect Input: The selection screen may require certain fields to be filled out, and if they are left blank or filled incorrectly, this error can occur.
  Invalid Data: The data entered may not match the expected format or may not exist in the system.
  Authorization Issues: The user may not have the necessary authorizations to access certain data or execute the transaction.
  Technical Issues: There could be a bug or issue in the program or transaction code that is causing the error.
  
  Solution:
  
  Check Input Fields: Ensure that all required fields on the selection screen are filled out correctly. Double-check for any mandatory fields that may be missing.
  Validate Data: Make sure that the data entered is valid and exists in the system. For example, if you are entering a vendor number, ensure that it is correct and active.
  Review Authorizations: Check if the user has the necessary authorizations to execute the transaction. If not, contact your SAP security team to get the required access.
  Consult Documentation: Refer to the SAP documentation or help files related to the specific transaction to understand the expected input and any constraints.
  Debugging: If you have access to debugging tools, you can analyze the program to identify where the error is occurring.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error message.
  
  Related Information:
  
  Transaction Codes: This error may occur in various transaction codes related to Purchase Orders, such as ME21N (Create Purchase Order), ME22N (Change Purchase Order), or ME23N (Display Purchase Order).
  SAP Notes: Check SAP Notes for any updates or patches that may address this error.
  User Forums: SAP Community and other user forums can be helpful for finding similar issues faced by other users and their solutions.
  
  If you continue to experience issues, providing more context about the specific transaction and the inputs used can help in diagnosing the problem further.