Copy RFMAHN21 into a Z prog

Hi Experts,

I had copied the Dunning prog RFMAHN21 into my (say) ZRFMAHN21 prog to do some modifications. I had used the copy feature in the system to copy all the includes..etc . While i execute(F8) the RFMAHN21 it gives some output with some fields.

But when i execute my ZRFMAHN21 in the same server before making any modifications <b>it is giving blank output nor the giving same output as RFMAHN21</b>.

what could be the reason? Do i need to do copy anything more Could any one pls help me?

Thanks

Dany