Selected Answer
Hi MsBernie and welcome to the Forum.
That line should end with a right bracket (and possibly something else) but without context/ a file it's very difficult to reply. The line ends
Set Rng = dataIDCol.Find(What:=searchValue, _
REVISION: From your full code, I see you have deleted or failed to copy the remainder of the line (and so the arguments needed by the .Find method). Please use the Select All below then Ctrl+C to copy this:
Set Rng = dataIdCol.Find(What:=searchValue, LookIn:=xlValues, Lookat:=xlWhole, SearchOrder:=xlByRows, MatchCase:=False)
and use it to replace your line above. It should go from red (with error) to black in your revised code. Then run the macro.
Please note that the combination of " _" followed by Return can by used in VBA code to make it easier to read the arguments, so the tutorial may show (and you could use the code below instead of that above):
Set Rng = dataIdCol.Find(What:=searchValue, _
LookIn:=xlValues, _
Lookat:=xlWhole, _
SearchOrder:=xlByRows, _
MatchCase:=False)
where the combination of a space+underscore at the end tells VBA to include whatever is in the next line of code.
If that does NOT fix your problem, I supsect that your question relates to a paid course. If so, please don't post the whole code or file on the Forum. Instead you can ask the question directly to the course author Don by using the Contact link above (and sticking with the Subject selection "Premium Course Questions").
If it does not relate to one, please edit your question to include the full macro (using the CODE button) or preferably attach a representative Excel file (with no personal data) and use the Add Files.. button to attach it.