Right, don’t edit standard SAP programs. Better copy the program (give it a name starting with ‘Z’) and change this copy.
Yes,I do not want to edit standard SAP programs,I just want to build myself programs,but it need a Access Key…
Sounds like you are in need of a “Developer Key”. See your basis team for one, but I would have thought if you are a developer, that would already have been done for you.