Balareva Aggregation

Hello @balupad14 !

First of all, thank you for your amazing Balareva activities, they helped me so much.

But here I am, with a problem.

Syntax error in the aggregation argument. Single column argument expected with one possible qualifier ‘Child’.

The purpose is to sum up the amounts when the “code tagetik” is the same.

I don’t understand where the problem come from, do you have any insights ?

Thanks in advance and have a nice day.