I am trying to apply Sheet Protection to the sheet ReturnData on my workbook, but when I do it prevents the formula in the A column from working correctly:
=IFERROR(IF($D6="", "", ROW($A6)-ROWS($A$1:$K$5)),"")
When I then unprotect the sheet the formula still no longer works. I had to revert to a previous version to undo it.
I have attached my workbook. The sheet is currently unprotected
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