Aside from store visits, which of these inputs would you need to measure store sales?

Surveys are a direct way to ask customers about their purchasing behavior, including whether an ad influenced a store visit or purchase. This provides valuable qualitative and quantitative data that can be correlated with ad exposure to measure offline sales impact beyond just store visits. Location extension information and maps engagements primarily track store visits, not necessarily sales. Ad engagements measure interactions with the ad itself, not subsequent offline purchases.