List/Put together in one cell different looked up values

Question

I would like to do the following:

From this input:

Product  Country
AA       BR
AA       UZ
BB       US
AA       IT
CC       RU
BB       MN

Obtain this table:

Product  List of countries
AA       BR, UZ, IT
BB       US, MN
CC       RU

Is there any formula combination that would achieve this (or something similar)?

Basically, I would like to find all the country values associated with one product and put them together.

Preferably without using VBA.

Thank you very much

Answer 1

As Pb comment you can try below in you have EXCEL-365 .

D2 =UNIQUE(A2:A7)
E2 =TEXTJOIN(", ",TRUE,FILTER($B$2:$B$7,$A$2:$A$7=D2))