How To Fix WER_UI121 - Please select the element you want to modify

SAP Error Message - Details

• Message type: E = Error

• Message class: WER_UI - UI related messages

• Message number: 121

• Message text: Please select the element you want to modify

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 WER_UI121 - Please select the element you want to modify ?

  SAP Error Message:
  
  WER_UI121 – "Please select the element you want to modify"
  
  Cause:
  This error message typically occurs in SAP when you attempt to perform a modification or an action that requires selecting a specific element (such as a line item, a node, or an object) in a list or tree structure, but no element has been selected by the user.
  For example, in workflows, change documents, or configuration transactions where you have a list or hierarchy of elements, the system expects you to highlight or select one element before proceeding with the modification. If you try to modify without selecting, the system throws this message.
  
  Solution:
  
  
  Select an element before modifying:
  
  Make sure to click on or highlight the specific element (line, node, or object) you want to change before pressing the modify or change button.
  
  
  Check UI controls:
  
  Sometimes, the UI might not clearly indicate the selection. Ensure that the selection is properly made (e.g., the row is highlighted).
  
  
  If using custom or enhanced screens:
  
  Verify that the selection mechanism is working correctly and that the selection is passed properly to the backend.
  
  
  If the error persists despite selection:  
  
  Check for any UI or GUI issues (e.g., screen freezes, delayed response).  
  Try restarting the SAP GUI or using a different client.  
  Check for OSS notes related to the specific transaction or module.
  
  
  
  
  Related Information:
  
  This message is common in modules like Workflow (SWF*), Change Management, or any transaction involving hierarchical or list-based selections.
  The message class is usually WER_UI (related to Workflow or UI elements).
  If you are a developer or consultant, check the code or screen flow logic where the selection is validated.
  SAP OSS Notes or community forums may have specific notes if this occurs in a particular transaction or after a system upgrade.
  
  
  Summary:
  
  WER_UI121 means you must select an element before modifying it. Simply select the item in the list/tree and then proceed with your changes. If the problem continues, investigate UI or system issues.