How To Fix WER_UI001 - Please select one field

SAP Error Message - Details

• Message type: E = Error

• Message class: WER_UI - UI related messages

• Message number: 001

• Message text: Please select one field

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 WER_UI001 - Please select one field ?

  SAP Error Message:
  
  WER_UI001: Please select one field
  
  Cause:
  This error message typically appears in SAP when a user is required to select exactly one field from a list or a selection screen but either:
  
  No field is selected, or  
  More than one field is selected when only one is allowed.
  
  This is common in scenarios involving selection screens, search helps, or UI elements where the system expects a single choice to proceed.
  
  Solution:
  
  Select exactly one field: Review the selection or input screen and ensure that you select only one field as required by the process or transaction.  
  Check UI instructions: Sometimes the screen or dialog box will specify that only one field can be selected. Follow these instructions carefully.  
  Clear multiple selections: If multiple fields are selected, deselect all but one.  
  Check for mandatory fields: Ensure that the required field is not left blank.  
  If using custom UI or Fiori apps: Verify that the UI logic enforces single selection and that the user input complies.
  
  
  Related Information:
  
  This message is often encountered in search helps (F4 help) or selection screens where the user must pick a single value to continue.  
  It can also appear in custom developments or enhancements where the selection logic is implemented with a restriction to one field.  
  If this error occurs unexpectedly, check for UI or program bugs that might not be correctly handling the selection logic.  
  In some cases, this message is linked to field selection in reports or queries where the user must specify one field for sorting, filtering, or display.
  
  
  Example Scenario:
  In a report selection screen, you might be asked to select one field to sort the output. If you leave all fields unselected or select multiple fields, the system will prompt with WER_UI001: Please select one field.
  
  If you need more specific guidance, please provide the transaction code or context where this error occurs.