How to sell LEGO on eBay and BrickLink at the same time

BrickLink and eBay attract different buyers, so listing on both can meaningfully grow your sales. The catch is that running two marketplaces at once doubles the bookkeeping — two sets of fees, two places to list, and the real risk of selling the same lot twice. Here’s how to do it well, and how to keep the overselling problem from biting you.

Why sell on both?

The two marketplaces reach buyers you can’t fully reach with either one alone:

• BrickLink is built specifically for LEGO. The people browsing it are there to buy bricks, sets, and minifigures, which makes it efficient for matching exact parts and lots to motivated buyers — usually at low seller fees.
• eBay is a giant general marketplace. Its audience is enormous and not LEGO-specific, which surfaces casual buyers and gift shoppers who’d never visit a dedicated LEGO site — in exchange for higher fees and broader competition.

Listing on both means your inventory is in front of the dedicated LEGO crowd and the general public at the same time.

The fees are different — plan for that

The two marketplaces price selling very differently. BrickLink’s seller fees are low and tiered; you can see the exact structure in our breakdown of how BrickLink’s fees work. eBay’s fees are higher and depend on the category, your store subscription, and your region, and they change from time to time — so check eBay’s current selling-fees page for your situation rather than assuming a fixed rate. The practical upshot: the same item nets you a different amount on each channel, so factor each marketplace’s fees into how you price there.

The real challenge: not selling the same lot twice

Here’s the problem that catches multi-channel sellers. You list a minifigure on both eBay and BrickLink. It sells on eBay. Until you remember to go lower the quantity on BrickLink, that same minifigure is still for sale there — and if a second buyer grabs it, you’ve oversold, and now you’re cancelling an order and taking the hit to your reputation. The more you list on both, the more often this happens. Manual updating is the usual culprit: there’s always a gap between a sale on one channel and the quantity change on the other.

A workflow that keeps both channels honest

1. Keep one master list of what you actually have — not a separate count per marketplace.
2. When something sells on either channel, reduce the quantity everywhere before you do anything else.
3. Reconcile regularly so the two channels never drift apart.

This works by hand at small volumes. As you grow, doing it manually becomes the thing most likely to fail — which is exactly where syncing software earns its place.

How BrickPulse keeps eBay and BrickLink in sync

BrickPulse keeps a single master inventory and connects BrickLink, BrickOwl, and eBay to it. When an item sells on one channel, BrickPulse lowers the quantity on the others automatically — every 10 minutes, with an on-demand sync when you want it immediately. Because every marketplace reads from one source of truth, the same lot can’t stay listed somewhere after it’s already sold. That’s the difference between multi-channel selling that scales and multi-channel selling that quietly generates cancelled orders. See how multi-channel sync works across BrickLink, BrickOwl, and eBay.

Selling on both marketplaces is one of the simplest ways to grow — as long as your inventory stays in sync. BrickPulse keeps BrickLink, BrickOwl, and eBay aligned from one master inventory for a flat $15/month — or see the live demo first.

FAQ