Upload the photos once. Click the category menus never again.

The problem

Copy-pasting the description was never the hard part. It's the fifth time you've uploaded the same five photos today that is mind-numbing. It's Category > Women > Tops > Blouses > Size > Color > Condition, again, in an app with slightly different menus than the last app. Forty clicks per item, times five platforms, times a hundred items. And then something sells in your Whatnot live while it was still up on eBay, and now you're refunding a stranger and apologizing to a follower.

Crosslisting apps fix the retyping, but their AI writers can't write your listings from photos.

• They don't protect your sourcing cost on auction starts.
• They don't keep your live shows from double-selling.
• They don't even tell you which 40 items went stale last month.

What are we even paying for?

That's thinking work. AI does thinking work now, if you hand it the right instructions.

What's inside

• The 4 Rulesthat make AI safe to run fast: the cost floor (never start an auction below what you paid), fresh key word voice on every listing, everything-everywhere routing with the two exceptions that protect your margin, and flag-don't-guess.
• Process 1: Whatnot Show Prep. Photos imported to Whatnot's exact bulk-upload CSV, with the pre-show delist step that stops double-selling on other platforms. Includes the show-tagging trick so you only delist show items, not your whole store.
• Process 2: Everything-Everywhere Crosslisting. One batch, every marketplace that makes money, bulky items are auto-routed to local pickup, sub-$15 items auto-routed around fee trap platforms. This means the AI sends the right item to the right platform to make the best money. It's like having you on autopilot.
• 5 copy-paste prompts that install the whole system into Claude, ChatGPT, or any capable AI assistant. Paste Prompt 1 once; run the rest per batch.
• The START-HERE file (never used AI? covered). Drop this one file into a free Claude or ChatGPT account, type “let’s go,” and the AI itself walks you through the entire setup, one step at a time: tracker, Vendoo, the rules, and your first practice listing. You don't learn AI; it onboards you.
• The tracker template. Ten columns. One source of truth your AI reads and updates.
• One-page quick reference. When X happens, paste prompt Y. Print it, tape it to the wall.

What it costs to run

The system itself: $19, once.The stack it runs on: a free-tier AI assistant plus Vendoo's Starter plan at $14.99/month. That's the entire operation. No $99/month “reseller suite,” no virtual assistant on payroll.

Who this is for

Resellers listing 20+ items a month on two or more marketplaces. Whatnot, eBay and TikTok sellers who crosslist between live shows. Anyone paying for a crosslisting app and still doing all the writing, pricing, and worst of all, inventory thinking by hand.

Who it's not for: sellers moving 5 items a month (just list them manually) or anyone expecting AI to photograph, pack, and ship. It won't. You keep the parts that need hands. The shipping robots are coming, they just aren't affordable yet.

How to use it (buyer's quick-start)

1. Download the PDF (delivered instantly after checkout).
2. Set up the stack (~20 minutes): your AI assistant, Vendoo Starter, and the 10-column tracker from page 3.
3. Paste Prompt 1 into your AI. It installs the 4 Rules permanently.
4. Run your first batch with Prompt 2 (show prep) or Prompt 4 (crosslisting).
5. Tape up the quick-reference page. From then on it's photograph, paste, post.

Affiliate disclosure: this guide contains a Vendoo referral link. The Raid Organizer earns a commission if you sign up through it, at no additional cost to you. We recommend the Starter plan because it's what the system needs, not because of the commission.

Frequently asked questions