Authorization Objects

Hi,

i was working with a program , which works perfect under my User ID say 'A' and also with another User ' B' .

I changed that program and added one Function Module (AUTO PGI ) and it works fine under my UserID 'A'.

But when i try that changed program with another user ID 'B". It is telling that some object is missing.

I have no idea about authorization objects. Gimme some idea Pal. It is an very urgent issue.

Cheers

vivek.