How To Fix WE879 - Select &

SAP Error Message - Details

• Message type: E = Error

• Message class: WE - Messages for EAN Customizing and for EAN management in MM_BD

• Message number: 879

• Message text: Select &

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 WE879 - Select & ?

  SAP Error Message:
  
  WE879 - Select &?
  
  Cause:
  The error message WE879 typically occurs during IDoc processing in SAP when the system expects a selection or input parameter but does not receive it correctly. The message text "Select &?" indicates that the system is prompting for a selection or a value that is missing or incorrectly specified.
  This can happen in scenarios such as:
  
  When executing a report or function module that requires a selection screen input, but the input is missing or invalid.
  During IDoc inbound or outbound processing, if a required segment or field is missing or not properly selected.
  When a user or program tries to process data without specifying mandatory selection criteria.
  
  
  Solution:
  
  
  Check Selection Parameters:
  
  Verify that all mandatory selection fields or parameters are correctly filled before executing the transaction or report.
  If running a program or report, ensure that the selection screen inputs are complete and valid.
  
  
  
  Review IDoc Data:
  
  If the error occurs during IDoc processing, check the IDoc segments and fields to ensure all required data is present.
  Use transaction WE02 or WE05 to display the IDoc and verify its status and data content.
  
  
  
  Debug or Trace:
  
  If the cause is not obvious, debug the program or function module where the error occurs to identify which selection or input is missing.
  Use transaction SM50 or ST22 to check for dumps or runtime errors related to the issue.
  
  
  
  Check Custom Code or Enhancements:
  
  If custom code or user exits are involved in the IDoc processing, verify that they handle selection parameters correctly.
  Ensure that any selection logic is properly implemented and does not omit mandatory inputs.
  
  
  
  SAP Notes and Documentation:
  
  Search for SAP Notes related to message WE879 for any known issues or patches.
  Review SAP documentation for the specific transaction or process where the error occurs.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  WE02 / WE05 - Display IDocs
  WE19 - Test tool for IDocs
  SM50 - Process overview (for debugging)
  ST22 - Dump analysis
  
  
  
  IDoc Processing:
  
  IDocs require certain mandatory segments and fields; missing these can cause errors.
  Proper mapping and data validation are essential.
  
  
  
  Common Contexts:
  
  Errors like WE879 often appear in custom reports or during data extraction where selection criteria are mandatory.
  It may also appear in ALE/EDI scenarios where partner profiles or message types are not correctly configured.
  
  
  
  
  If you provide the exact context or transaction where the error occurs, I can help with more specific troubleshooting steps.