I have extensive experience in local marketing.
This can be done through an IT platform which is very simple and where the local shop can design its own messages easy and simple within the agreed guidelines.
Whether it is flyers, posters, banners or invitations, it does not matter. I strongly believe in the local shop should be the sender as much and as often as possible.
Whatever large and fine brand there are behind the shops, it is the local base, wrapped in a professional packaging that sells best.