I need an arrayformula to lookup all matching cells in another sheet and transpose and return all corresponding unique values.
Here is my sheet:
https://docs.google.com/spreadsheets/d/1uqeM6M9MAPehgyqyRLmH9mgg3Jh_RUSxADMisarht5Y/edit?usp=sharing
I've tried this but it doesn't work:
=ARRAYFORMULA(IFERROR(VLOOKUP(TRANSPOSE(A2:A), Sheet2!A2:B, 2, 0)))