We have salespeople that shift companies and counties quite often, so I thought it would be nice for folks to be able to reassign a company's territory (or several at a time) by creating a group with county search and then mass updating them all. This makes assigning territories quick, easy, and simple.

I created the field easy enough in the secondary entity Address and tossed it into the Address Details box. I quickly found out that the default address of companies are tied into MAS. If I wanted to create a new address then I could easily put in the county field but since we cannot change anything in MAS through CRM, when I can go to the edit screen for the default company address I can type in the county, but there's no save button.

How can I include a county field? I'm thinking that I need to go into MAS and create a UDF but that's a little bit more involved for setting up, and we brought it up to our provider yet they continually tell us it cannot be done.

What options do I have?