Problem with key field in sales and customers tables
Hello! I have two data tables: Leads and Contacts. This tables connected by key field "Contact ID". I want use some dimensions, like "Tag", from Contacts table, to slice data from Leads table. But, I don't know why, when i'm using filter in field "Tag", report behave like there is no Lead, that match filtering condition. But this Leads exist, I know it . Why field "Contact ID" don't work like a key? What am i missing?