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Walmart Marketplace Integration

Walmart Marketplace Integration

Connect your Walmart seller account and sync orders, inventory, and fulfillment across all channels

Connect your Walmart Marketplace account to OmniOrders and manage everything from one place. Your orders, inventory, and product listings will sync automatically—no more manual updates or switching between Seller Center and your other platforms.

Why Connect Walmart?

Section titled “Why Connect Walmart?”

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

Auto Sync Orders

New Walmart orders flow directly into OmniOrders as they come in—no delays or manual imports needed.

Real-Time Inventory

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

Product Listings

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

Tracking Updates

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

Before You Start

Section titled “Before You Start”

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

Walmart Marketplace Account

You need an active Walmart Marketplace seller account. Sign in at Seller Center to verify your account status.

Seller Permissions

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

Active Listings

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

Connect Your Walmart Marketplace Account

Section titled “Connect Your Walmart Marketplace Account”

  1. Go to Integrations

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

  2. Select Walmart Marketplace

    Find Walmart Marketplace in the list and click the Configure button

  3. Authorize Access

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

  4. Configure Settings

    Back in OmniOrders, choose what to sync:

    • Listings: Sync your product catalog and SKUs
    • Orders: Import new orders automatically
    • Inventory: Keep stock levels in sync
    • Fulfillment: Send tracking info back to Walmart

  5. Start Sync

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

What Gets Synced?

Section titled “What Gets Synced?”

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

Products & Listings

Section titled “Products & Listings”
  • Product titles and descriptions
  • SKUs and barcodes
  • Variants (sizes, colors, etc.)
  • Images and pricing
  • Inventory quantities

Orders

Section titled “Orders”
  • Order details and line items
  • Customer shipping addresses
  • Order status and notes
  • Payment status

Inventory

Section titled “Inventory”
  • Stock levels by location
  • Inventory updates (both directions)
  • Low stock alerts

Fulfillment

Section titled “Fulfillment”
  • Tracking numbers
  • Carrier information
  • Shipment status updates

Managing Your Connection

Section titled “Managing Your Connection”

View Sync Status

Section titled “View Sync Status”

Check if everything is syncing correctly:

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

Pause Syncing

Section titled “Pause Syncing”

Need to temporarily stop syncing?

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

Update Settings

Section titled “Update Settings”

Change what syncs:

  1. Click Settings on your Walmart Marketplace integration
  2. Toggle any sync option on/off
  3. Click Save Changes

Common Questions

Section titled “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 Walmart Fulfillment Services?

Yes! We sync both seller-fulfilled and WFS orders. Inventory and shipment status sync automatically.

What about Walmart's performance metrics?

Walmart tracks on-time shipment and delivery performance. Keep sync active to ensure tracking updates reach Walmart promptly.

Is my data secure?

Absolutely. We use OAuth 2.0 and the official Walmart Marketplace API. All data is encrypted in transit and at rest.

Troubleshooting

Section titled “Troubleshooting”

Orders Not Syncing

Section titled “Orders Not Syncing”

Problem: New Walmart 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., Created, Acknowledged)
  • Look for error messages in the sync log
  • Try clicking Force Sync to trigger a manual refresh

Inventory Not Updating

Section titled “Inventory Not Updating”

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

Solutions:

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

Authorization Expired

Section titled “Authorization Expired”

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

Solutions:

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

Duplicate Products

Section titled “Duplicate Products”

Problem: Products appear twice after connecting Walmart

Solutions:

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

Best Practices

Section titled “Best Practices”

For New Users

Section titled “For New Users”
  1. Start Small: Connect your account and let the initial sync complete before making changes
  2. Test First: Place a test order in Walmart and verify it appears in OmniOrders
  3. Use Consistent SKUs: Keep SKUs identical across Walmart and OmniOrders for automatic product matching

For Multi-Channel Sellers

Section titled “For Multi-Channel Sellers”
  1. Centralize Inventory: Let OmniOrders be your source of truth for stock levels across Walmart and other channels
  2. Map Locations: Configure inventory locations to match your Walmart fulfillment setup
  3. Set Buffer Stock: Configure safety stock levels to prevent overselling across channels

For High-Volume Sellers

Section titled “For High-Volume Sellers”
  1. Monitor API Limits: Walmart Marketplace 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

Need More Help?

Section titled “Need More Help?”

Contact Support

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

Walmart API Docs

Learn more about the Walmart Marketplace API. View Docs →

More Integrations

Explore other platforms and integration options. View Integrations →