How To Fix WG301 - Select only one entry

SAP Error Message - Details

• Message type: E = Error

• Message class: WG - Messages for store order and investment buy

• Message number: 301

• Message text: Select only one entry

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 WG301 - Select only one entry ?

  SAP Error Message:
  
  WG301 - Select only one entry
  
  Cause:
  This error occurs when a user is expected to select exactly one entry from a list or selection screen, but either no entry or multiple entries have been selected. The system requires a single, unambiguous choice to proceed, and the current selection violates this rule.
  
  When does it typically occur?
  
  In transaction codes or screens where the user must pick one item from a list (e.g., selecting a partner function, a document, or a single record).
  During processing steps that require a unique selection to continue.
  In workflow or partner determination steps where only one partner or entry should be chosen.
  
  
  Solution:
  
  Review the selection made on the screen.
  Ensure that exactly one entry is selected.
  If multiple entries are selected, deselect all but one.
  If no entries are selected, select one entry.
  Confirm the selection and proceed.
  
  
  Additional Information:
  
  This message is a standard validation message to prevent ambiguous processing.
  If you are developing or customizing SAP screens or workflows, ensure that the UI logic enforces single selection where required.
  In some cases, this message can be triggered by user exits or BAdIs that expect a single entry but receive multiple.
  If the error occurs unexpectedly, check for:
  
  Custom code or enhancements affecting selection logic.
  User roles and authorizations that might limit visibility or selection.
  Data inconsistencies causing multiple entries to appear when only one should.
  
  
  
  
  Example:
  In a partner determination screen, if you are asked to select a partner for a sales order, selecting two partners will trigger WG301. You must select only one partner to proceed.
  
  If you need help with a specific transaction or scenario where this error occurs, please provide more details!