DAX Measure needed to calculate across two tables with active relationship

[BobBonner]

I have a supplier table with transaction data (i.e. supplier responses times on given dates).  I also have a second table with supplier thresholds (i.e. each supplier listed once and other columns for the response thresholds).  The tables are joined at the supplier relationship.  Therefore, I want to calculate the difference between each supplier "transaction" response time against the "lookup" threshold for that supplier.  The calculation should change based on the user's selection of a supplier in the supplier filter.  For some reason, I am returning all the values from the "lookup" table and not the one related across the join for the particular supplier.

[Phil_Seamark]

Hi @BobBonner

What does your calculation look like?

[BobBonner]

I’ve set up my data model differently.  I need DAX measure to calculate each row in transaction table against a single (lookup) row from my lookup table.  Each transaction should have a supplier/tower/groupcontract/activitytype/severity that has a unique instance in the lookup table.  The transaction table’s response time should be calculated against the response time threshold in the lookup table for the given combo.  Can this be done with a measure, or does it have to be done with a calculated column?  Also, does the RELATED() function not work when there are join tables separating the transactions from the lookup?

[BobBonner]

Thanks for the response.  I had my join set up incorrectly and am reformatting my data as well.  Will get back to you if the problem lasts.