Terrace roof cutout downpipe

Hello everyone, I have the following question, on my terrace roof a cutout in the glass has to be made because of a downpipe (from the factory). Now I have a question: is there something like a cover that I can put around the downpipe so that the cutout is covered and, of course, sealed as well? Many thanks in advance and have a nice weekend. Regards Patrick

Can't you plan it so that the downpipe doesn't necessarily go directly into the ground? (Question might sound silly, but it's not that absurd)

Hello, the downpipe is on a house wall, if I plan the roof so that I avoid it, the roof ends 40 cm earlier than I wanted and does not completely cover the house wall. And unfortunately, it doesn't look good anymore.

Let the downspout from the house end at the roof of the terrace roof and then let it run off over the roof? This was often done in the past, but it is no longer quite up to date today. We have the same problem; in our case, the carport installer is having enormous difficulties making this setup watertight.