Confirm there are not already settings or features that do what the shop is asking for-

Standard e-commerce platforms do not have built-in settings to identify the personal names or contact details of anonymous browsers who haven't logged in, as privacy laws and technical limitations generally only allow for tracking anonymous IP addresses or "abandoned cart" data once a guest has manually entered their email address.

What does the shop want the product to do-

The shop wants the product to act as a comprehensive surveillance and lead-capture system that de-anonymizes visitors to reveal their identities without a login, generates a "guest list" of everyone browsing specific products, and tracks local competitors who may be viewing the app to replicate and steal product designs for their own benefit.

Why/how would it improve sales or efficiency-

This would improve efficiency by allowing the shop to proactively convert window shoppers into customers through targeted follow-ups and would protect sales by identifying and blocking local "copycats," ensuring that unique products aren't being replicated and sold elsewhere in the community.