How To Fix CMX_PM121 - Select a line

SAP Error Message - Details

• Message type: E = Error

• Message class: CMX_PM - Messages for Process Messages

• Message number: 121

• Message text: Select a line

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 CMX_PM121 - Select a line ?

  The SAP error message CMX_PM121 "Select a line" typically occurs in the context of the SAP Plant Maintenance (PM) module, particularly when the system expects the user to select a specific line item in a list or table but none has been selected. This can happen in various scenarios, such as when trying to perform an action on a maintenance order, notification, or any other list-based transaction.
  Cause:
  
  No Selection Made: The most common cause is that the user has not selected any line item from the list or table before attempting to execute an action.
  Multiple Selections: In some cases, the system may require a single selection, and if multiple lines are selected, it can trigger this error.
  User Interface Issue: Sometimes, the user interface may not be responding correctly, leading to the impression that a line is selected when it is not.
  
  Solution:
  
  Select a Line: Ensure that you have selected a line item in the list before proceeding with the action. Click on the desired line to highlight it.
  Single Selection: If the action requires a single selection, make sure only one line is selected. Deselect any other lines if necessary.
  Refresh the Screen: If you believe you have made a selection but still receive the error, try refreshing the screen or navigating away and back to the transaction.
  Check User Permissions: Ensure that you have the necessary permissions to perform the action on the selected line.
  Consult Documentation: If the issue persists, refer to SAP documentation or help resources for specific guidance related to the transaction you are working on.
  
  Related Information:
  
  Transaction Codes: This error can occur in various transaction codes related to Plant Maintenance, such as IW31 (Create Order), IW32 (Change Order), or IW28 (Display Orders).
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific transaction or version of SAP you are using.
  User Training: If this error is common among users, consider providing additional training on how to properly select items in SAP.
  
  If the problem continues after trying these solutions, it may be beneficial to contact your SAP support team for further assistance.