He can if I'm home and can open the door, but, that's not usually the case, so that would be the reason the receptacle would have to be outside.You can, but a contractor can't.
I installed two outside GFCI receptacles today next to the new mini-splits being installed. One on each side of the house. I installed the power for the mini-splits yesterday. I had this conversation with the home owner:
Home owner: "What are those for?"
Me: "They are required by the code in case the units have to be serviced."
Home owner: "How often do you think they will be used?"
Me: "Practically never. But you can use them to plug your Christmas lights in."