If you install before Black Friday, Yarvi records agent visits over the whole weekend without anything more from you. Install takes one visit to Yarvi in your Shopify admin; it adds its pixel and needs no theme edits.
What to expect in the first days: the pixel step completes after the first visit to your store, and AI agent visits show up as they arrive. Agent traffic varies a lot from store to store, so a quiet first day is normal.
Your 14-day trial covers the whole BFCM weekend for any store that installs in the week before. The trial article has the details.
Yarvi only reads your store. It never edits your theme, products, prices or checkout, so it can't change anything about your sale.
If something looks wrong over the weekend, ask in Help in the Yarvi app. Billing, data and anything urgent goes straight to Ned.