Have a Infopath Form with Repeating Table and few columns -
a. User Name (Lookup)
b. Application (Choice)
c. Project (Lookup)
d. Access (lookup)
Combination of these 4 should be unique so created a Uniquetoken whose value is concatenation of these 4.
There are few more columns in the list like Vendor, comments, etc.
I am facing 2 ...