Sheet 1 contains a column for "previous" notes that are drawn from sheet 2 and column for "current" notes that are entered manually each week.
Sheet 3 is an archive of all weeks prior. This archive can have multiple "matches" in the primary column.
If the primary column information matches between sheets, I would like to combine the notes from all previous weeks for that criteria in Sheet 2.
I have attempted =join(collect) functions, but cannot seem to combine the information.