How To Fix RU304 - Select a line in the data entry section

SAP Error Message - Details

• Message type: E = Error

• Message class: RU - Messages for order completion confirmation

• Message number: 304

• Message text: Select a line in the data entry section

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RU304 - Select a line in the data entry section ?

  The SAP error message RU304 ("Select a line in the data entry section") typically occurs when a user attempts to perform an action that requires a specific line item to be selected in a data entry table or list, but no line has been selected. This can happen in various SAP transactions where line items are displayed, such as in purchase orders, sales orders, or other data entry forms.
  Cause:
  
  No Line Selected: The most common cause is that the user has not selected any line item in the data entry section before attempting to execute an action (like editing, deleting, or processing).
  User Interface Issue: Sometimes, the user interface may not clearly indicate that a line needs to be selected, leading to confusion.
  Transaction-Specific Requirements: Certain transactions may have specific requirements for line selection that are not immediately obvious.
  
  Solution:
  
  Select a Line Item: Ensure that you click on a line item in the data entry section before proceeding with the action you want to perform. This is usually done by clicking on the row or checkbox next to the line item.
  Check for Filters: If you are using filters or search criteria, ensure that the line items you expect to see are not being filtered out.
  Refresh the Screen: If you believe a line should be selectable but isn’t showing up, try refreshing the screen or navigating away and back to the transaction.
  Review User Permissions: In some cases, user permissions may restrict access to certain line items. Ensure that you have the necessary permissions to select and act on the line items.
  Consult Documentation: If the issue persists, refer to the SAP documentation or help resources specific to the transaction you are using for any additional requirements or troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: The error can occur in various transaction codes, so knowing the specific transaction you are working with can help in troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific transaction or error message.
  User Training: Sometimes, additional training or guidance on how to navigate the specific SAP module can help prevent this error in the future.
  
  If the problem continues after trying these solutions, it may be beneficial to contact your SAP support team for further assistance.