So following that method, can you tell me why this isn't working?
=IF($T3="","",IF('Travel Expense Voucher'!$F$5=2,IF(T3<>12,'Tcodes and Ecodes'!$G$6,'Tcodes and Ecodes'!$G$7),IF(T3<>12,IF(M3="In-State",'Tcodes and Ecodes'!$G$12,'Tcodes and Ecodes'!$G$13),IF(M3="In-State",'Tcodes and Ecodes'!$G$11,'Tcodes and Ecodes'!$G$14))))
I'm not getting any type of error, but it is not leaving the field blank if T3 is blank?