Inventory Sync Across 70+ Marketplaces

Selling the same item on several marketplaces means one of them will eventually sell something you no longer have. Inventory sync is the part of FLUF Connect that stops that happening. It watches every marketplace you connect for sales, and when one comes in it takes the item down everywhere else before a second buyer can find it.

What happens when an item sells

1. FLUF sees the sale. Marketplaces with an official connection, such as eBay, Etsy and Shopify, tell FLUF about sales as they happen, and FLUF also checks each marketplace on a schedule. Marketplaces that run through your own signed-in session, such as Vinted and Facebook Marketplace, are checked from the app or the browser extension.
2. The item comes down elsewhere. For a one-off item, FLUF ends the listing on every other marketplace. For an item with several in stock, it reduces the quantity instead, and the listing stays live until the last one goes.
3. The order lands in your list. Every marketplace’s orders appear together under Orders, with buyer, item, price and status, on the web and in the app.

Variants are tracked separately, so selling the medium does not touch the large. Items you created in FLUF and items FLUF imported from a marketplace are treated the same way.

What syncs, beyond sales

• Price and details: edit a listing in FLUF and the change is pushed to every marketplace it is on. Set a different price for one marketplace where its fees justify it, and the rest follow the main price.
• Restocks: mark a sold item back in stock, or raise the quantity, and FLUF relists it where it was.
• Marketplace edits: changes you make directly on a marketplace, such as a price drop on eBay, are read back into FLUF on the next check.
• Tracking: when you fulfil from Shopify, or buy a label in FLUF, the tracking number is sent back to the marketplace the order came from, where the marketplace accepts it.

For a team workspace around stock preparation and availability, explore Airtable inventory management with FLUF. Prepare products in Airtable and bring back stock updates; continue making live stock adjustments in FLUF.

One order list, or everything into Shopify

On every plan, orders from all your marketplaces sit in one list in FLUF Connect. From Pro, FLUF can also copy each marketplace order into your Shopify store as it comes in, so a Depop or eBay sale shows up next to your website orders and you fulfil everything from Shopify. Fulfil it there with a tracking number and FLUF passes the tracking back to the marketplace. How the Shopify connection works.

Where inventory sync has limits

• Some marketplaces can’t report sales. On a marketplace with no way to read orders, FLUF cannot see what sold there. The marketplace’s page under Channels says so; those sales you mark sold in FLUF yourself, and FLUF then ends the item everywhere else.
• Session marketplaces need the app or extension to be around. Vinted, Facebook and similar run through your own login, so sold-item removal there happens when the app or extension next connects. The app does this in the background on its own schedule.
• Two sales in the same minute can both go through. Sync removes an item within minutes, not instantly, and marketplaces take time to process an end request. For very fast-moving stock, keep a small quantity buffer.

Included on every plan

Inventory sync and the shared order list are part of every plan, including the trial. Plans differ in how often FLUF checks for sales and in the automation around it, not in whether sync is included.

Automatic relisting, offer management, smart pricing and listing boosts are included from Pro upwards. Starter covers unlimited crosslisting, inventory sync, order sync and Instagram posting without them. Accounting integrations are included from Pro upwards. Yearly billing is charged once a year. New accounts get 7 days for £1, then move onto a plan.