can i invite buyers?
to your birthday party? to your wedding? Oh you mean to your gig… You can promote it on social media and wherever but don’t impose it on them or spam people. Promoting your gigs by messaging buyers is considered spam and should not be done.
use buyers request section to send offers
It would be spam, and like getting invited to the unpopular kid’s party. Nobody wants to go. Don’t bother. Use the other channels.
No and even if you could it would result in zero sales. It’s not the way to find buyers.