Connections

Access: Settings → Connections

Manage your Amazon, Shopify and WooCommerce integrations. Each connection represents an account linked to Epinium. Each Seller or Vendor account and each Shopify or WooCommerce store takes up one of the connections in your plan.

Connection types

Type	Required data	Purpose
Seller Central	Profile ID + OAuth token	Syncs seller catalog, prices, stock and images
Vendor Central	Vendor code + token	Syncs vendor catalog with specific fields
Amazon Advertising	Profile ID + token	Campaign management, bids, targets and reports
Shopify	Store domain + client ID + client secret of your own app	Gives Epinium access to the store's catalog, content and orders, and lets your assistant change the catalog and content if you give it permission
WooCommerce	Store address + your approval in WordPress (or a read/write key)	Lets your AI assistant look up and, if you give it permission, change the store's catalog through the Epinium MCP

Add a new connection

Seller Central

1. Go to Settings → Connections and click Add connection
2. Select Seller Central and choose the primary marketplace
3. The Amazon authorization window opens — sign in with the seller administrator account
4. Accept the permissions requested by Epinium
5. The connection becomes active and the first sync starts automatically (may take up to 24 h to complete)

Vendor Central

1. Go to Settings → Connections and click Add connection
2. Select Vendor Central and enter your vendor code
3. Authorize access from the Amazon window using a Vendor Central administrator account
4. The initial sync starts automatically

Amazon Advertising

1. Go to Settings → Connections and click Add connection
2. Select Amazon Advertising and choose the marketplace
3. Sign in to Amazon Advertising with administrator permissions
4. Epinium automatically detects available advertising profiles — select the ones you want to activate

Shopify

Shopify works with a "bring your own app" model: you create an app in your own Shopify Partners account and give Epinium its credentials.

1. Go to Settings → Connections and click Add connection
2. Select Shopify
3. Enter your store's domain (your-store.myshopify.com), your app's client ID and its client secret
4. Click Connect and authorize access in the Shopify window that opens

The full process to create your app in Shopify, with step-by-step screenshots, is in the Shopify integration guide.

WooCommerce

WooCommerce doesn't need you to create any app: your store generates a read/write key and you approve, from WordPress, that Epinium uses it.

1. Go to Settings → Connections and click Add connection
2. Select WooCommerce
3. Type your store's address (mystore.com) and click Check store
4. Click Approve in my store, sign in as an administrator in the window that opens and click Approve

The store requirements, the alternative with a key and how to revoke access are in the WooCommerce integration guide.

Re-authenticate a connection

If a connection expires (token expired), you can re-authenticate it from this section without losing existing configuration.

Multiple marketplaces

You can connect multiple Amazon Advertising profiles, each for a different marketplace (amazon.es, amazon.de, amazon.com, etc.). Epinium supports all Amazon marketplaces in Europe, Americas and Asia-Pacific.

Seller and Vendor simultaneously

Epinium supports both modes and can sync data from Seller and Vendor in the same account.

Registered brands (Brand Registry)

On Seller Central and Vendor Central connection cards you will see a Registered brands section showing the sync status with Amazon Brand Registry.

Possible statuses

Status	Description
Synced	Sync completed successfully
Permission denied	The account does not have access to Brand Registry on this marketplace
Sync error	An error occurred during the last sync
Not synced yet	No sync has been performed yet

Viewing brands and their countries

If you have registered brands, a button showing the brand count appears. Clicking it opens a panel with the full list: each brand's name and the marketplaces (countries) it is registered in, shown as country codes (ES, DE, US…).

Sync runs automatically every day. No manual action is needed.

Brand Registry section not showing?

This section is only visible on Seller Central and Vendor Central connections. Amazon Advertising connections do not have Brand Registry.