Abap changes working ok in development but not in quality

Hello Experts..

We have done some changes in the program logic & that changes are fetching the correct values in development. But after transporting to quality same thing is going wrong. We have done

1) sent the fresh transport to the quality which is correct & complete.

2) I can not access the Quality to check the program there itself.

Please suggest how to proceed?

Regards

RaviRaj0308