Multichannel inventory guides for EU sellers
Practical guides to selling one stock pool across Amazon, Allegro, eBay and PrestaShop: stop overselling, keep channels in sync, fix stock when it drifts.
Stock accuracy
How to stop overselling the same stock on two marketplaces
Sell one SKU on Amazon, eBay, Allegro and PrestaShop without selling the same unit twice. How stock reservations work and why Available moves.
Correcting on-hand stock yourself, and why a SKU can still go negative
How to adjust on-hand quantity, why a SKU can still go negative even though adjustments cannot, and the difference between Manual Adjust and RMA Return.
Selling channels
Sales-channel groups: how a SKU goes online, offline, and stays in sync
Control which products are listed on which sales channels, what happens when you add or remove a SKU, and how the three sync controls interact.
Connecting a new store or marketplace, and keeping the connection healthy
How to add a sales channel, how orders come in, what each connection status means, and how we decide a connection is offline and needs attention.
Amazon keys expiring: renew your LWA client secret before Amazon cuts you off
Amazon client secrets expire. How much warning you get, where to find the secret, how to generate a new one, and how to update it without losing sync.
Orders and invoicing
Delivery dates on your orders: the Promised column and the ETA column
What the Promised delivery date means, how it differs from the courier ETA, which channels publish one, and why an empty date never means on time.
Pending orders: what happens while a payment has not cleared
What Pending means, whether a pending order reserves stock, what the auto-flagged label is for, and what happens when the payment clears or fails.
Invoicing: turning it on, issuing invoices, and invoice numbers
How to enable invoicing, issue an invoice for an order, why the invoice button may be missing, and what to do when an invoice number looks wrong.
Cases, incidents and the activity log: what shows up where
What a case (also called an incident) is, where to see open incidents, how to report a problem, and why an incident can appear that you did not create.
Getting started
How we compare
Side-by-side on the things that decide it: oversell protection, per-order fees, and whose credentials your channels run on.
Channel setup guides
What each channel asks for before it will connect — which credentials, where to find them, and what to switch on once it validates.