How To Fix /MVA/AMC_BM_MSG420 - Select exactly one line in the table

SAP Error Message - Details

• Message type: E = Error

• Message class: /MVA/AMC_BM_MSG -

• Message number: 420

• Message text: Select exactly one line in the table

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 /MVA/AMC_BM_MSG420 - Select exactly one line in the table ?

  The SAP error message /MVA/AMC_BM_MSG420 ("Select exactly one line in the table") typically occurs in the context of a transaction or function where the system expects the user to select a single entry from a list or table, but either no entry or multiple entries have been selected.
  Cause:
  
  No Selection: The user has not selected any line from the table.
  Multiple Selections: The user has selected more than one line from the table, which is not allowed for the operation being performed.
  User Interface Issue: Sometimes, the user interface may not be functioning as expected, leading to confusion about what can be selected.
  
  Solution:
  
  Select One Line: Ensure that you select exactly one line from the table. If you have selected multiple lines, deselect them and select only one.
  Check for Filters: If the table is filtered, ensure that the desired entry is visible and selectable.
  Refresh the Table: If you suspect a UI issue, try refreshing the table or navigating away and back to the transaction.
  Review Documentation: Check the documentation or help files related to the specific transaction to understand the selection requirements.
  Consult with Colleagues: If you are unsure about which line to select, consult with colleagues or refer to the business process documentation.
  
  Related Information:
  
  Transaction Context: This error is often encountered in transactions related to material management, inventory, or any module where selection from a list is required.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Training: Ensure that users are trained on the specific transaction and understand how to make selections correctly.
  
  If the problem persists after following these steps, it may be beneficial to contact your SAP support team for further assistance.