How To Fix WER_UI104 - Cannot move a rule when there's a blank line

SAP Error Message - Details

• Message type: E = Error

• Message class: WER_UI - UI related messages

• Message number: 104

• Message text: Cannot move a rule when there's a blank line

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WER_UI104 - Cannot move a rule when there's a blank line ?

  SAP Error Message:
  
  WER_UI104: Cannot move a rule when there's a blank line
  
  Cause:
  This error occurs in SAP Workflow or BRF+ (Business Rule Framework plus) when you try to move (reorder) a rule or condition in a rule set, but there is a blank line present in the list of rules or conditions. The system does not allow reordering if the list contains empty or blank entries because it cannot determine the correct sequence or position for the rule.
  
  Explanation:
  
  In BRF+ or workflow rule maintenance, rules are often displayed in a list.
  If there are blank lines (empty rows) in the list, the system treats them as invalid entries.
  Attempting to move a rule up or down in the presence of these blank lines causes the system to throw the error WER_UI104.
  This is a safeguard to prevent inconsistent or corrupted rule sequences.
  
  
  Solution:
  
  
  Remove Blank Lines:
  
  Check the list of rules or conditions for any empty or blank lines.
  Delete or fill these blank lines with valid rule data.
  Save the changes.
  
  
  
  Refresh the Rule List:
  
  Sometimes, the UI might show blank lines due to a display or sync issue.
  Refresh the screen or exit and re-enter the rule maintenance transaction to reload the data.
  
  
  
  Check for Incomplete Rules:
  
  Ensure that all rules are fully defined.
  Incomplete or partially saved rules might appear as blank lines.
  
  
  
  Use Correct Editing Procedures:
  
  Avoid creating blank entries by using the proper add/delete functions.
  Do not leave rules half-created or empty.
  
  
  
  If the Problem Persists:
  
  Check for SAP Notes related to WER_UI104.
  Sometimes, patches or updates fix UI inconsistencies.
  
  
  
  
  Related Information:
  
  
  Transaction / Application:  
  
  BRF+ (Business Rule Framework plus) – Rule maintenance  
  SAP Workflow rule editor
  
  
  
  SAP Notes:  
  
  Search SAP Support Portal for WER_UI104 or related BRF+ UI issues.
  
  
  
  Best Practices:  
  
  Always maintain clean and complete rule sets.  
  Avoid leaving empty rows in rule lists.  
  Regularly validate and test rules after changes.
  
  
  
  
  Summary:
  WER_UI104 is triggered because the system cannot reorder rules when blank lines exist in the rule list. The fix is to remove or complete these blank lines before attempting to move rules.
  
  If you need help with a specific transaction or version, please provide more details!