I'm still getting error as #No Match for this formula, not sure why.
I was able to use the same format to my other sheet and it worked, however on my other sheet, i just changed the range but now it's not working. I made sure column names are correct as stated on the formula.
=JOIN(COLLECT([Ticket ID]:[Ticket ID], [Client_ID]:[Client_ID], [Client_ID]@row), "; ")
Please help, thank you.