Combining Data into Summary Table

jeggen don't know the purpose of this but here it is, add the following expression as calculated table

Summary = 
UNION (
    SELECTCOLUMNS ( Contract, "Date", Contract[Date], "Client", Contract[Client], "Employee", Contract[Employee], "Details", FORMAT ( Contract[Contract Amount], "General Number" ), "Source Table", "Contract" ),
        SELECTCOLUMNS ( Interactions, "Date", Interactions[Date], "Client", Interactions[Client], "Employee", Interactions[Employee], "Details", Interactions[Summary], "Source Table", "Interactions" ),
        SELECTCOLUMNS ( Payments, "Date", Payments[Date], "Client", Payments[Client], "Employee", Payments[Employee], "Details", FORMAT ( Payments[Amount], "General Number" ), "Source Table", "Payments" )
) 

this is where you add the above expression

I would💖 Kudos 🙂 if my solution helped. If you can spend time posting the question, you can also make efforts to give Kudos whoever helped to solve your problem. It is a token of appreciation!