A poster in the window is only seen by people already at the door. A customer who added your wallet sees your campaign on their phone — and they've already bought from you.
You can schedule a campaign for a future date and have it retire itself when it expires. The banners above your menu are managed from the same place.
Show a campaign that only runs at one branch to that branch's customers only.
You reach customers who added your wallet directly. Announcing to the entire Wally pool is offered separately through the Business Store.