You can choose how big of an area you want to target and how long you want the geofilter to be available for. A fence tool on an interactive Google Map allows you to select the minimum area of 20,000 square feet. You can then choose how long you want the filter to remain active.
The final step is to preview and submit your geofilter. Snapchat offers annual plans for long-term geofilter campaigns. It is a good idea to plan your geofilter a few weeks in advance, in case Snapchat rejects your submission and you need to redesign and resubmit it.
The fourth. Your geofilter should have a plan.