E-commerce platformsUSOrders from your eBay listings become deals in the CRM, shipments with tracking numbers go back to eBay, and the quantity in your offers on every eBay marketplace follows your warehouse.
eBay is where many sellers reach buyers in the US, Germany, the UK and other countries from a single seller account. Orders live in the eBay seller account, buyers write through eBay messages, and the same goods are often sold on the seller's own site as well, so the manager keeps three windows open and copies by hand. The connection brings every completed eBay order into the CRM as a deal with the buyer, the items and the delivery address; when the warehouse marks the order shipped in the CRM, the shipment with the tracking number goes back to eBay; the available quantity in your eBay offers stays in step with your stock; and a refund issued on an order changes the deal status. The manager works in one place instead of three.
Before the manager opens the eBay seller account several times a day, copies the buyer, the items and the address into the CRM by hand, and an evening order waits until morning.
After as soon as the buyer completes checkout, a deal with the buyer's card, the order lines, the delivery address and the marketplace label appears in the CRM, and the warehouse sees it at once.
Before the warehouse packs the parcel, then someone opens the order on eBay, marks it shipped and types the tracking number a second time — or forgets, and the buyer opens a case.
After the warehouse marks the order shipped in the CRM and enters the tracking number once; the connection records the shipment on eBay, and the buyer sees the tracking in their eBay account.
Before the same item is listed on eBay US, eBay Germany and the seller's own site; quantities on eBay are corrected once a week, and the last unit is sold twice.
After the CRM holds the single stock count, and every change is written into the available quantity of the matching eBay offer on each marketplace, so the listing shows what is really on the shelf.
Before a refund is issued on eBay, but the CRM still shows the deal as won, the report counts it as revenue and the warehouse does not know the item is coming back.
After a refund on the order — full or for part of the lines — moves the deal to the agreed status in the CRM, adds a note with the reason, and the warehouse sees the return in its queue.
Before to notice a new order, a changed listing or a new piece of feedback, someone refreshes the eBay pages all day, and on a busy day the daily request allowance is spent on checking rather than selling.
After eBay sends a notice the moment something happens, the connection verifies it and updates the deal, and requests to eBay are made only when there is something to do.
For those who want to check: each point links to the official documentation page it comes from.
eBay's official order interface lets a seller manage an order from the buyer's checkout to completion, in line with the payment method and timing chosen at checkout.
Source: developer.ebay.com ↗ checked 2026-09-28There are separate methods for the order list, a single order, a refund on an order and the shipping fulfillment record — the latter is how the CRM records that the parcel has left.
Source: developer.ebay.com ↗ checked 2026-09-28The Inventory API creates and maintains inventory item records — description, condition and available quantity — and turns them into offers on eBay marketplaces.
Source: developer.ebay.com ↗ checked 2026-09-28The Notification API delivers events — order confirmations, listing revisions, feedback received, user account changes; an application can list topics, set destinations, create filtered subscriptions and verify each message against eBay's public key.
Source: developer.ebay.com ↗ checked 2026-09-28The seller grants access through OAuth: eBay shows the set of permissions (scopes) the application asks for, and the seller must consent to all of them before the integration can act on their behalf.
Source: developer.ebay.com ↗ checked 2026-09-28Each country has its own marketplace ID — EBAY_US, EBAY_DE, EBAY_GB and so on; orders and items are tied to a specific marketplace.
Source: developer.ebay.com ↗ checked 2026-09-28The first requirement comes from eBay, not from us: before the connection makes its first live request, it must subscribe to eBay's notices about buyer accounts being deleted or closed — or file the official opt-out; otherwise eBay can switch the developer access off. Requests to eBay are limited per day: the default allowance is designed for individual sellers and smaller businesses (the order methods, for example, allow 100,000 requests a day), and a higher allowance is granted only after eBay reviews the application in its Application Growth Check — we cannot raise it ourselves, so the connection relies on eBay's own event notices rather than asking eBay again and again. Only orders that have completed checkout reach the CRM: a purchase still waiting for upfront payment is not returned by eBay. To publish an offer through the connection, the seller must have eBay business policies switched on — payment, shipping and returns — because every offer has to reference all three. The developer account is confirmed by eBay separately and, by eBay's own note, takes about one business day; registration must use a company email, and the application keys for the test environment and for live selling are separate, as may be the permission sets, so what worked in the test has to be re-checked on live keys. Access granted by the seller is short-lived by design — two hours — and renews itself without asking the seller again.
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Once scope and price are agreed, the work begins.
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Four services people come to us for most often. Each page explains what we do, how the work goes and where to start.
Choose the system, set up the pipeline, migrate data, train the team.
Learn more →Accounting, telephony, website, payments and messengers feed the CRM on their own.
Learn more →Orders, requests and answers around the clock, straight into your CRM.
Learn more →Flows between CRM, email, spreadsheets, payments and AI, on your own server.
Learn more →
E-commerce platformsUSOrders from your Shopify store flow into your CRM, delivery and mailing on their own
See scenarios →
E-commerce platformsUSYour own WordPress store: orders, products and customers flow into CRM, delivery and payments without manual copying
See scenarios →
Payments & POSUSPayments accepted worldwide, tied straight into the order that's waiting on them
See scenarios →
Payments & POSUSOne checkout for 125+ local payment methods, plus automatic tax and subscription billing
See scenarios →
Warehouse & DeliveryUADelivery status that updates the order on its own, from drop-off to the client's door
See scenarios →
E-commerce platformsUSOrders from your Squarespace store become deals in the CRM the moment they are paid, stock is updated from the warehouse, and every buyer gets a client card with their full history.
See scenarios →Implementation · Development · Integrations →
eBay is a trademark of its owner. CoreviaFlow is not affiliated with it unless stated otherwise. Screenshots are taken from public vendor materials; the source is shown under each one.
