Inventory Not Syncing: Stock Showing Incorrectly

You set up auto-sync, but inventory still isn't updating

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Note

You've turned on automatic sync, but your store still shows the wrong stock numbers. This guide walks through the most common reasons why—so you can find the fix fast.

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1. Check the update settings: Settings Level & Product Level

Check Steps:

1. Account-Level Settings:

a. Log in to DSers > Settings > Product Settings
b. Locate the Automatic Inventory Update section
c. Configure these four options :
d. Click SAVE

Setting	Options
When a product is out of stock or no longer available	Do nothing / Set as draft / Set quantity to zero on store
When a variant is out of stock	Do nothing / Remove Variant / Set quantity to zero on store
When variant mapping is lost	Do nothing / Set quantity to zero on store
When a product's inventory changes	Do nothing / Update to store Automatically

2. Product-Level Check:

If a specific product isn't syncing even though the update setting is on:

a. Log in to DSers > My Products
b. Click More Actions > Update Settings
c. Ensure Automatic Inventory Update is checked

💡 Pro Tip:
You can use filter to narrow down the products which unselected autosync inventory.
If you have many products that need the sync feature enabled, contact DSers support—they can help enable it in bulk.

⚠️ Note: If these settings are grayed out, your current plan doesn't support automatic inventory sync. You'll need to upgrade to a paid plan .

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2. Sync Conditions Aren't Met

The problem: Everything looks configured correctly, but certain products still won't update—or the storefront still shows "Sold Out" even after a sync.

DSers has several hard requirements for automatic inventory sync. If any one isn't met, the sync won't happen.

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Condition 1: Wrong Fulfillment Service Location

DSers only syncs inventory for products in these locations: dsers-fulfillment-service, Shop location, and any custom locations you manually create. Products assigned to other third-party locations won't sync.

How to fix:

1. In Shopify, go to Shopify> Products page—confirm which location the product stock at
2. In DSers, go to Settings > Fulfillment settings> Product fulfillment service management, turn on for the services you want DSers to manage
3. If a product is assigned to another third-party location, change it to "Shopify" or "DSers.”

📌 Quick heads-up: If your Shopify admin shows inventory but your storefront says "Sold Out," check that you have shipping zones and rates configured in Shopify > Settings > Shipping and delivery. Missing shipping settings can cause all products to appear out of stock.

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Condition 2: Incomplete Mapping

DSers can only sync inventory for properly mapped products. If variants aren't fully mapped, DSers doesn't know which supplier inventory to check.

How to fix:

1. Go to My Products > Mapping to see all products needing attention
2. Ensure each variant is properly mapped:

• Option-Level Mapping: Each store option (e.g., "Large", "Black") maps to a supplier option
• SKU-Based Mapping: Each store variant maps to a specific supplier SKU

⚠️Attention: Automatic inventory sync does NOT apply to multi-supplier products. Ensure only one available supplier SKU is linked to each product variant.

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Condition 3: Sync Frequency + Timing

DSers does not sync in real time. Sync frequency depends on your subscription plan :

Plan	Sync Frequency
Basic	Notification only (no automatic update)
Standard	12-24 hours
Advanced	6-12 hours
Pro	6-12 hours
Enterprise	within 6 hours

The synchronization procedure will be started at UTC+8 10:00 AM.

💡 Tip: If it's been over 36 hours with no update, check the Shopify admin product page for the variant's view adjustment history.

If it shows no data, DSers isn't pushing the inventory number. Please contact DSers support team to check details for you.

Condition 4: Inventory Gap Doesn't Meet the Sync Threshold

To protect you from overselling due to sync delays, DSers uses a safe threshold for inventory updates.
If the gap between your Shopify inventory and your supplier's inventory is too small, we will not update the stock automatically.
Specifically, DSers will ONLY sync when the gap meets these conditions:

Condition	Example
Shopify ≤ 500, gap between Shopify and AliExpress is greater than 10	Shopify=400, AE=300 → Gap=100 → ✅ Will sync
Shopify > 500, gap between Shopify and AliExpress is greater than 400	Shopify=800, AE=100 → Gap=700 → ✅ Will sync
Shopify is 0, AliExpress shows "unlimited"	Shopify=0, AE=unlimited → ✅ Will sync

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3. Free vs. Paid Users: Different Approaches

🔹 Free Plan Users

DSers does not automatically sync inventory to your store on the Free plan—it only supports notifications.

Recommended approach:

Enable Inventory Changes Notification to receive alerts when:

• A product is not found (discontinued)
• A product is out of stock
• A variant is out of stock

When you receive a notification, you can manually update stock via the notification prompt.

📎 Related Article: Inventory Changes Notification: What to Do When a Product Goes Out of Stock

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🔹 Paid Plan Users

If your plan includes automatic inventory sync, follow the setup steps in the related article below.

📎 Related Article: Inventory Auto-Sync: Prevent Overselling

FAQ Section

Everything you need to know about auto-sync and how to keep your inventory accurate across channels.

What should I check before setting up auto-sync? +

Make sure your DSers plan supports automatic inventory sync—this feature is only available on paid plans. Also confirm that each product variant is properly mapped to a supplier SKU, and that the product is assigned to a fulfillment location DSers can manage (dsers-fulfillment-service or Shop location).

What happens if the inventory gap is too small? +

DSers uses a safe threshold to prevent overselling. If Shopify inventory is ≤500, DSers syncs only when the gap is greater than 10. If Shopify >500, it syncs only when the gap exceeds 400. If Shopify is 0 and AliExpress shows unlimited, sync will proceed.

How often does DSers sync inventory? +

Sync frequency depends on your plan. Standard: 12-24 hours, Advanced/Pro: 6-12 hours, Enterprise: within 6 hours. Sync runs daily starting at UTC+8 10:00 AM. DSers does not sync in real time, so some delay is expected.

What if the product is mapped but still won't sync? +

Check if the product uses multi-supplier mapping—auto-sync does not apply to multi-supplier products. Each variant must have only one available supplier SKU linked. Also confirm shipping zones and rates are configured in Shopify → Settings → Shipping and delivery, as missing settings can cause all products to appear out of stock.

Does DSers support inventory sync beyond AliExpress? +

Yes. DSers supports sourcing and fulfillment workflows across AliExpress, Alibaba, and 1688 Dropshipping, helping sellers manage inventory and order processing across multiple supplier channels from a single dashboard.