How it's calculated
Visits to business locations are detected from some Facebook users who have location services enabled. These visits are then extrapolated to produce the total estimated number of store visits.
Store visits are attributed to an ad if someone visits your business location up to seven days after seeing it, or up to 28 days after clicking on it. This attribution window is fixed. If you've applied a default attribution window at an account level, it won't apply to store visits. Learn more.
Store visits beta
Store visits is a new metric. While it's in beta, we'll be refining the way it's measured to give you more accurate results.
* Nguồn: Facebook