Excel Array Formula showing same results

Question

I'm having issues with my array formula showing the same result on all cells. I know it's a simple Index Match, but can someone help me with whats missing to have it return multiple unique values? Most examples I've found only help with returning results within a range, but this is specific to matching text. =INDEX(Info2020[[Modêle]:[Catégorie]],MATCH(Criteria,Info2020[Catégorie],0),1) (obviously Ctl+Shft+Enter to get {})

Ideal output:

Answer 1

would want all "modele" codes that match the "categorie" to be displayed.

That does not seem to be what is being shown by your Ideal Output table. And I really don't see how your Ideal Output is derived from the data you've posted.

But to do what you write , you can use a formula like the one below.

You need to convert all of the rows that match your criteria (the categorie ) and then INDEX into the appropriate column. The AGGREGATE function allows you to extract the matching rows in order.

Suggest you break apart the formula, and/or use the formula evaluation tool, to better understand how it is working.

=IFERROR(INDEX(Table1[[Modêle]:[Modêle]],AGGREGATE(15,6,1/(Table1[[Catégorie]:[Catégorie]]=J$2)*ROW(Table1[[Modêle]:[Modêle]]),ROWS($1:1))-ROW(Table1[#Headers])),"")

and fill down until you get blanks.

Data

Output