DAX Formula Including Several Tables

Hi Community, 

I hope you can support me.

Goal:

I would like to create a matrix visualization that shows the "Elemente" distributed across the "Filiale". 

Problem:

The problem is that the intermediate table does not contain all values. I would like to map the following:

Show the "Elemente" from table "VC002_Order_Info" per "Filiale"--> If from table "T034_Order" the field "T034_C_Employee" is empty, take the "Filiale" from table "Personal Organigramm (2)", and if the field "T034_C_Employee" is filled, take the "Filiale" from table "Personal Organigramm".

Table Links:
T034_C_Employee with "Name" from table "Personal Organigramm"
T034_Customer_ID with T034_Customer_ID from table "Personal Organigramm (2)"

I tried it with the follow DAX formula:
FilialeDynamisch = 

Thank you very much for your support.