Do 'pee here' sprays work?

Recently moved from a house with a dog door to an apartment with a balcony. My older dog has lived in an apartment before, but the younger one has always had the dog door.

When my older dog was an apartment pup, we had great success with a balcony pee place, if I was out and he had to go. The youngster doesn't seem to get it, and keeps doing her business on the floor right by the front door when I'm not home.

The pee place is artificial turf over a washable fabric pad. I see sprays advertised to encourage bathroom habits in a particular spot. Anybody had success with using those on fake grass? Any other tips for getting her to see that I want her to go here?