Keepa Just Made Storefront Stalking 100x Better (New Seller Lookup Explained)

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Keepa just made storefront stalking 100 times better overnight. They rebuilt the Seller Lookup tool into a full filter engine — and it changes how you find sellers to stalk in 2026.

In this video I walk through every new filter, use it to find 705 likely arbitrage sellers on screen, and show you how to feed that data into Storefront Stalker Pro and Claude for automation.

⏱ TIMESTAMPS:
00:00 Keepa's upgrade to storefront stalking
00:53 Where to find the new Seller Lookup
02:22 Game Changer Filters
07:02 Building a "likely arbitrage seller" filter
10:20 Feeding seller IDs into Keepa Product Finder
12:47 Finding a real lead (Star Wars card game)
13:41 Using Claude AI with Keepa Seller Lookup
14:39 Automating with Storefront Stalker Pro
17:53 The retail arbitrage angle
19:52 What to do before Q4 hits