How To Fix WXP747 - Unexpected constellation in radio buttons MERK1_R - MERK8_R

SAP Error Message - Details

• Message type: E = Error

• Message class: WXP - Retail Planning

• Message number: 747

• Message text: Unexpected constellation in radio buttons MERK1_R - MERK8_R

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WXP747 - Unexpected constellation in radio buttons MERK1_R - MERK8_R ?

  Certainly! Here's a detailed explanation regarding the SAP error message:
  
  SAP Error Message:
  WXP747 Unexpected constellation in radio buttons MERK1_R - MERK8_R
  
  Cause:
  This error typically occurs in SAP Web Dynpro applications when there is an inconsistency or unexpected state in the group of radio buttons named MERK1_R through MERK8_R. Specifically:
  
  The radio buttons are designed to be mutually exclusive (only one can be selected at a time).
  The error indicates that the current selection state of these radio buttons does not conform to the expected logic or constraints defined in the application.
  This can happen if:
  
  More than one radio button is selected simultaneously.
  None of the radio buttons is selected when at least one selection is mandatory.
  The underlying data model or context node that controls these radio buttons is corrupted or inconsistent.
  There is a programming or configuration error in the Web Dynpro component controlling these radio buttons.
  
  
  
  
  Solution:
  
  
  Check the Radio Button Grouping:
  
  Ensure that the radio buttons MERK1_R to MERK8_R are properly grouped so that only one can be selected at a time.
  In Web Dynpro, radio buttons should be bound to the same context attribute or use the same group name.
  
  
  
  Validate the Context Attribute:
  
  Verify the context attribute bound to these radio buttons.
  Make sure the attribute is of the correct data type (usually an integer or string representing the selected option).
  Check that the attribute value corresponds to one of the valid radio button values.
  
  
  
  Check Initialization and Default Values:
  
  Ensure that the context attribute controlling the radio buttons is initialized properly before the UI is rendered.
  If a selection is mandatory, set a default value to avoid the "no selection" state.
  
  
  
  Review the Web Dynpro Component Logic:
  
  Look into the component controller or view controller code to see if there is any logic that manipulates the radio button states.
  Fix any logic that might cause multiple selections or invalid states.
  
  
  
  Debugging:
  
  Use the Web Dynpro debugger to inspect the context node and attribute values at runtime.
  Check the flow of data and user actions that lead to the error.
  
  
  
  SAP Notes and Patches:
  
  Search for SAP Notes related to WXP747 or radio button issues in your SAP version.
  Apply any relevant patches or corrections provided by SAP.
  
  
  
  
  Related Information:
  
  WXP747 is a generic Web Dynpro error message indicating an unexpected state in UI elements.
  Radio buttons in Web Dynpro must be carefully managed to ensure mutual exclusivity.
  This error is often encountered in custom Web Dynpro applications or standard SAP applications with custom enhancements.
  Proper UI design and context binding are crucial to avoid such errors.
  If the problem persists after checking the above, consider raising a support ticket with SAP, providing detailed logs and screenshots.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Inconsistent or invalid selection state in radio buttons MERK1_R - MERK8_R (multiple selected, none selected, or data mismatch).
  
  
  Solution
  Ensure proper grouping, validate context attribute, initialize default values, review component logic, debug runtime values, check SAP Notes.
  
  
  Related
  Web Dynpro UI design principles, SAP Notes on WXP747, debugging Web Dynpro context nodes.
  
  
  
  
  If you provide more context (e.g., the specific Web Dynpro application or custom code), I can help with more targeted advice.