In episode 227 of Semantic Mastery's weekly Hump Day Hangouts, one participant asked how a service business without a store should use MyMaps.
The exact question was:
If I am creating a service based GMB where they only go to the customer (no store), does it still make sense to create MyMaps? How does Google view MyMaps for service businesses? Example: If I'm a plumber could I create a MyMaps going from my business to a customer's address?