Add OR IIF to my statement



Hi
Can anyone please help me add to my statement?

Currently it returns text based on data in a string field on our database.

What I need to add is that if other strings like "7701" or "8901" appear in
the database field then return other text I specify.

Expr2: IIf([dbo_customer]![SALESMAN]="2501","Tracey","No Rep")

Any help would be greatly appreciated.
.