I am trying to validate information using Index Collect function. It works when I look at the school's name, but when I add the 2nd criteria for the school district, I get the #Incorrect Argument Set error.
SCID=the ID number
SN is school Name in the criterion range
DN is the district name in the criterion range
=INDEX(COLLECT({SCID}, {SCMLSN}, [SCHOOL_NAME_LONG]@row, {SCMLDN}, [District_Name]@row), 1)
Doing this because we have same name schools in multiple school districts. Was getting an ID# conflict in returned results using index match originally, but it only gave me the 1st instance ID found and not subsequent iterations.