Double JoinFieldValue

Goodmorning All,

I am trying to get the "Role" of the of a user.

I have a Rep that "Reports to" Bob.

Bob's "Role" in CRM is District manager

So I tried an expression like this:

JoinFieldValue('<User>',JoinFieldValue('<User>', [<OwnerId>], '<Role>'),'<ManagerFullName>')

I am not getting a syntax error but it is not returning the Role either.  Actually, it's not returning any value at all.

I have switched the Role and ManagerFullName position and it did not make a difference.

Any suggections would be appreciated.

Cheers,

GH