>From a registration form the user sends last four of SSN
>
>I I then run SPT and getting a SSN from remote database based on user ID
>
>I am trying to compare these two but what I have tried is not working. It always shows a mismatch
>
>Both are type 'C'
>
>DO Case
>Case AT(lastfour, sqlStringSSNQuery.ssn) lessthan 1
>RETURN "NVDError"
>EndCase

Try using ATC or upper both strings first. Or just check

upper(right(sqlStringSSNQuery.ssn,4)) = upper(lastFour)