Amazon Seller Central Integration

Amazon Seller Central Integration

Connect your Amazon seller account and sync orders, inventory, and fulfillment across all marketplaces

Connect your Amazon Seller Central account to OmniOrders and manage everything from one place. Your orders, inventory, and listings will sync automatically—no more manual updates or switching between Seller Central and your other channels.

Quick Setup

Most sellers connect in under 5 minutes. You’ll need an active Amazon Seller Central account (Professional or Individual) to get started.

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Why Connect Amazon Seller Central?

Connecting your Amazon Seller Central account to OmniOrders means new orders flow in automatically from all your marketplaces, inventory stays in sync across Amazon and your other channels, and fulfillment updates push back to Amazon the moment they happen — no manual imports, no overselling, and no switching between platforms.

Auto Sync Orders

New Amazon orders flow directly into OmniOrders as they come in—FBA and FBM, across all marketplaces.

Real-Time Inventory

Stock levels update automatically across Amazon and all your other channels. This prevents overselling.

Listing Sync

Product listings and ASINs sync bidirectionally. Changes in one place reflect everywhere.

Tracking Updates

Shipping info and tracking numbers automatically update in Seller Central when orders ship.

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Before You Start

Gather these items before connecting—they make setup faster and smoother:

Amazon Seller Central Account

You need an active Professional or Individual seller account. Sign in at sellercentral.amazon.com (or your regional equivalent).

Seller Permissions

You must be the primary account holder or have full admin access to authorize the integration. Check your role under Settings → User Permissions.

Active Listings

Have at least one active listing with inventory before connecting. This lets you verify the sync works correctly right after setup.

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Connect Your Amazon Seller Central Account

1. Go to Integrations

   In OmniOrders, click Integrations in the main menu, then click Add Integration

2. Select Amazon Seller Central

   Find Amazon Seller Central in the list and click the Configure button

3. Authorize Access

   You’ll be redirected to Amazon. Sign in to your Seller Central account if needed, then review the permissions and click Authorize

   What We Access

   OmniOrders only requests access to orders, inventory, and product listings via the Selling Partner API—we never access payment details or customer credentials.

4. Select Marketplaces

   Choose which Amazon marketplaces to sync (e.g., US, UK, EU, Japan). You can add more later in settings.

5. Configure Settings

   Back in OmniOrders, choose what to sync:

   • Listings: Sync your product catalog and ASINs
   • Orders: Import new orders automatically (FBA and FBM)
   • Inventory: Keep stock levels in sync
   • Fulfillment: Send tracking info back to Seller Central

6. Start Sync

   Click Start Sync to begin importing your data. This may take a few minutes depending on your catalog size.

First Sync

The first sync imports your existing listings and recent orders. After that, everything updates in real-time via the Selling Partner API.

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What Gets Synced?

The Amazon Seller Central integration syncs product listings (ASINs, titles, SKUs, images, pricing), orders (line items, customer addresses, FBA/FBM status), inventory quantities, and fulfillment updates — bidirectionally, so changes in either Amazon or OmniOrders reflect on both sides.

Products & Listings

• Product titles and descriptions
• ASINs and SKUs
• Variants (sizes, colors, etc.)
• Images and pricing
• Inventory quantities by fulfillment channel

Orders

• Order details and line items
• Customer shipping addresses
• FBA vs FBM fulfillment type
• Order status and notes
• Payment status

Inventory

• Stock levels by marketplace
• FBA inventory quantities
• FBM (Merchant Fulfilled) inventory
• Inventory updates (both directions)

Fulfillment

• Tracking numbers
• Carrier information
• Shipment status updates
• FBA shipment status

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Managing Your Connection

View Sync Status

Check if everything is syncing correctly:

1. Go to Integrations → Amazon Seller Central
2. View the sync dashboard showing:
   • Last sync time
   • Listings synced
   • Orders synced
   • Any errors or warnings

Pause Syncing

Need to temporarily stop syncing?

1. Open your Amazon Seller Central integration settings
2. Toggle Sync Active to OFF
3. Syncing stops immediately (you can resume anytime)

Update Settings

Change what syncs or add marketplaces:

1. Click Settings on your Amazon Seller Central integration
2. Toggle any sync option on/off or add/remove marketplaces
3. Click Save Changes

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Common Questions

How often does it sync?

Orders sync in near real-time. Listings and inventory sync every 5–15 minutes depending on API limits.

Does it work with FBA?

Yes! We sync both FBA and FBM orders. FBA inventory and shipment status sync automatically.

What about multiple marketplaces?

You can connect multiple Amazon marketplaces (US, UK, EU, etc.). Each syncs independently.

Is my data secure?

Absolutely. We use OAuth 2.0 (Login with Amazon) and the official Selling Partner API. All data is encrypted in transit and at rest.

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Troubleshooting

Orders Not Syncing

Problem: New Amazon orders aren’t appearing in OmniOrders

Solutions:

• Check that Order Sync is enabled in integration settings
• Verify the order is in a synced status (e.g., Unshipped, Pending)
• Ensure you selected the correct marketplace
• Look for error messages in the sync log
• Try clicking Force Sync to trigger a manual refresh

Inventory Not Updating

Problem: Stock changes in Amazon don’t update in OmniOrders (or vice versa)

Solutions:

• Confirm Inventory Sync is turned on
• Check if products are mapped correctly (same SKU or ASIN in both systems)
• Amazon SP-API has rate limits—allow up to 15 minutes for updates
• Verify you’re not hitting API throttling (check sync logs)

Authorization Expired

Problem: Amazon integration shows “Authorization Expired” or “Reconnect Required”

Solutions:

• Click Reconnect and authorize access again in Seller Central
• This can happen if you revoked app access or changed account permissions
• No data is lost—syncing resumes immediately after reconnecting

Duplicate Products

Problem: Products appear twice after connecting Amazon

Solutions:

• Go to Products and use Merge Duplicates tool
• Use consistent SKUs across Amazon and OmniOrders for automatic matching
• Map ASINs to existing products during initial setup

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Best Practices

For New Users

1. Start with One Marketplace: Connect your primary marketplace first and let the initial sync complete
2. Test First: Place a test order in Amazon and verify it appears in OmniOrders
3. Use Consistent SKUs: Keep SKUs identical across Amazon and OmniOrders for automatic product matching

For Multi-Channel Sellers

1. Centralize Inventory: Let OmniOrders be your source of truth for stock levels across Amazon and other channels
2. Map FBA and FBM: Configure inventory locations to match your FBA warehouses and FBM stock
3. Set Buffer Stock: Configure safety stock levels to prevent overselling across channels

For High-Volume Sellers

1. Monitor API Limits: Amazon SP-API has rate limits—OmniOrders handles this automatically, but large catalogs may take longer to sync
2. Sync During Off-Peak: Schedule large initial syncs during low-traffic hours
3. Check Sync Logs: Review regularly for any throttling or error messages

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Need More Help?

Contact Support

Our team is here to help with setup, troubleshooting, or any questions. Get Support →

Amazon SP-API Docs

Learn more about the Selling Partner API. View Docs →

More Integrations

Explore other platforms and integration options. View Integrations →

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Pro Tip

Use the same SKU for a product on Amazon and in OmniOrders—matching happens automatically and prevents duplicate listings.