allowed customer downloads example failed installation installing order over product sell separate separately service services setup sold upgrading

Hello,

Is it allowed to sell just installation or upgrading service with e-junkie?

For example, if someone downloads my product (which will also be sold over e-junkie), can a customer order the installation separately in case they failed at installing it on their own.

If so, do I set up the installation service as new product or what?

Yes, you can sell services on E-junkie as well. And yes, you do want to have it setup as a separate product.