Besides shop visits, what's another input needed to measure shop sales?

Surveys are crucial for measuring shop sales beyond just tracking shop visits because they gather qualitative data directly from customers. This data can include information about their purchase intent, actual purchases made, average spend, and reasons for choosing a particular shop. This provides a more complete picture of sales performance than visit data alone. Location extension information, Maps engagements, and Ad engagements are all valuable for tracking customer interest and foot traffic, but they don't directly measure sales transactions or provide insights into customer purchasing behavior in the same way surveys do.