Variant Transaction

Hi

I want to create transactions using variant transactions in Se93.I have one Z T-CODE for which I have create transaction variants.I have already created transaction variants for the above Z T-CODE using the varaint for e.g 'TEST' in the Z T-Code.When I create transaction code in se93 and call this Z T-Code with its respective transaction variant it doent execute with this particular variant.It always call the selection screen with the default values it has got.Could you let me know what may be the problem?

Thanks

Davinder