I need to filter a column in the list A, in her form. The filtered values must exist in the list B and I need do this in the form of powerapps. It's simple to do this in SharePoint 2013, but I cant do this in powerapps.
I'm trying do this:
Filter(Choices([@ListA].Diretoria);Value in Filter(ListB;ReferenceFilter.Empresa=DataCardValue3.SelectedItems).Title)
but I cant read the ListB.
Ex: When I select the Empresa 1 in the field DataCardValue3 in the form of the list A, I need filter to show just values of Diretoria A and C.
Someone can help me?