Open the Retail group in the left menu - it's a standalone top-level section, not nested under a broader heading. Depending on the modules you have, it contains:

• Retail Locations (/admin/retaillocations) and Retail Menu (/admin/menus/retail) - retail module.
• Wholesale Location (/admin/wholesalelocations) and Wholesale Menu (/admin/menus/wholesale) - wholesale module.
• Stock Management (/admin/stocks) - retail module, or wholesale together with Grab&Go.
• Retail Grab&Go - Checkouts (/admin/retail/sales) - retail + Grab&Go modules.
• Grab&Go Drop-off Report (/admin/reports/grabandgodropoff) - Grab&Go module.
• In Store Menu (/admin/menus/instoremenu) - In Store Menu module.
• Checkout As also sits in this group when the Checkout As module is enabled.

The Retail Dropoff Report lives under the Meal Prep Fulfilment Reports group instead. Supporting settings are under Delivery Settings: Stock Management Justifications (reasons for stock movements) and Refund Reasons. All Retail pages require an active kitchen (reseller) to be selected, or you're bounced back to the admin home.