How To Fix DS540 - Choose a valid cursor position for 'Insert line'

DS540 - Overview

• Message type: E = Error

• Message class: DS - Messages for Editing Text Elements in ABAP Programs

• Message number: 540

• Message text: Choose a valid cursor position for 'Insert line'

What causes this issue?

To insert a blank line in the column headers, place the cursor on
that column header line in front of which you want to insert the line.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

DS540 - Details

• The SAP error message DS540, which states "Choose a valid cursor position for 'Insert line'," typically occurs when you attempt to insert a new line in a table or list where the cursor is not positioned correctly. This can happen in various SAP transactions, especially when dealing with table controls or lists.
  
  Cause:
  
  Invalid Cursor Position: The cursor is not positioned on a valid row or line where a new entry can be inserted. For example, if the cursor is on a header or a non-editable line, the system will not allow an insertion.
  Read-Only Mode: The screen or table might be in a read-only mode, preventing any modifications, including inserting new lines.
  Incorrect Context: The context in which you are trying to insert a line may not support insertion, such as being in a summary view or a non-editable area.
  
  
  Solution:
  
  Position the Cursor Correctly: Ensure that the cursor is positioned on a valid line