Turning on inventory sync in 4Seller can support real-time updates of actual warehouse inventory to various online stores, support the synchronization of inventory from self-owned warehouses, FBA warehouses and third-party warehouses to stores, and support stores to configure inventory linkage at the warehouse level to effectively avoid overselling.
Note:
To enable the inventory synchronization function in 4Seller, you need to first complete the steps of creating Inventory Products, adding the Stock SKU quantity and matching the MSKU of the product with the Stock SKU to ensure that the set inventory synchronization rules can take effect and enable the inventory synchronization function successfully.Step 1 Create and Map Products
(1) Create Inventory Products
Refer this help article: How to create Stock SKU?
(2) Add Stock SKU quantity
Refer this help article: How to add stock SKU?
Note: If 3PF, should add stock in 3PF side.
(3) Map shop sku with stock sku
Refer this help article: How are Products Mapped to Stock SKUs?
Step 2 Synchronize and Associate FBA/3PF Inventory
Note: If you use FBA / 3PF warehouse, you can refer to this step, otherwise you can ignore it.
2.1 Create 3PF Warehouse
Enter the Inventory Settings page, find the 3PF warehouse, and click Create to add the FBA warehouse.
Note: To add an FBA / Shopify warehouse, you must first authorize the Amazon / Shopify store in 4Seller. If you do not authorize the Amazon / Shopify store, you can first authorize the Amazon / Shopify store in the Shop Manage page.
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2.2 Synchronizing and Mapping Inventory
Click on Inventory to enter the 3PF warehouse page, click on Sync Inventory to synchronize 3PF's inventory to 4Seller, and then click on the SKU of the inventory to associate the SKU of the Product.
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Map Stock Sku Method:
1. On the Map Product page, you can search for product by product name or SKU, and click Select to successfully match the inventory SKU.
2. FBA page support import map
Download CSV fill the info then import to map stock sku in bulk.
Step 3: Enable Inventory Sync
3.1 Turn On Inventory Sync
Setting--Listing Setting--Update Setting--open button with "Update stock info to the platform from 4Seller automatically".
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3.2 Set up Inventory Sync Rules
Basic configuration: Turn on the option of Update Stock to the marketplace from 4Seller automatically, and you can enter the setting page of Inventory Sync Rules. On this page, you can perform the following operations:
1. Select the stock type for synchronizing stock (you can choose to use available stock or on hand stock)2. Add warehouse matching:
(1) Support warehouse matching for TikTok Shop, Amazon, Shopify, eBay,Shein and Walmart, etc platforms
(2) You can choose stores on each platform
(3) 4Seller warehouse and Platform warehouse can be matched (4Seller warehouse can support all choices)3.Set rule options about to be sold out:
(1) No process: When the stock is 0, push the inventory to 0 without special processing.
(2) Convert to sold out: When stock is lower than a certain value, push stock to 0 for selected shop.Note: Because the inventory synchronization maps the system warehouse to the platform warehouse, the inventory synchronization will only change the quantity of the corresponding platform warehouse;
The quantity of listing = The quantity of synchronized warehouse + The quantity of uncorresponding warehouse.
Advanced configuration: Based on the basic configuration, you can add additional rules for specific stores or SKUs. For example, you can configure certain store products to not push inventory updates when SKU stock changes.
Click "Add Configuration" to access advanced configuration settings.
Add relevant information in the configuration settings:
1. Configuration name
2. Applicable store
3. SKU type: Stock SKU & Shop SKU
4. Fill specific Stock/Shop SKU
5. Sync Setting

Finally, click Save to save the settings of the Inventory Sync Rules.

3.3 View Inventory Sync Records
After setting the inventory sync rules, you can view the sync records of inventory changes on the Inventory Sync page.
Note:
1. Each row represents the latest synchronized record of inventory changes for a SKU.
2. Each main account can push up to 30,000 times per day. If it exceeds 30,000 times, it will no longer be synchronized; it will be refreshed every other day.

Any problem feel free to contact 4Seller Support Team: support@4seller.com