Multichannel Fulfillment (MCF) for SHEIN App User Guide

Prerequisites

Before you start setting up the MCF for SHEIN app, make sure that you’ve met the following requirements:

You must be a SHEIN US Marketplace seller with SHEIN Seller Hub account and SHEIN approved product listings. The app supports SHEIN semi-managed selling mode and self-operated selling mode.
You must have a Seller Central account with inventory in the Amazon US fulfillment network.

If you don’t have these accounts yet, start by creating your Seller Central Account and SHEIN Seller Hub account. If you don’t have inventory with Amazon, add products to your Fulfillment by Amazon (FBA) inventory page and send inventory to Amazon. For more information on how to send inventory to Amazon, see Send to Amazon.

Prevent Double Order Fulfillment

You must create a warehouse in the SHEIN Seller Hub exclusively dedicated to the MCF for SHEIN app. To avoid double fulfillment, the warehouse you select cannot be used with any other fulfillment service providers or with any other software solution you use to integrate your SHEIN store with MCF. SHEIN assigns a unique warehouse ID to the MCF for SHEIN app and associates this unique warehouse ID with your MCF orders in the SHEIN system. The app fulfills the MCF orders based on the unique warehouse ID. For detailed SHEIN Open Platform rules, see SHEIN’s announcement.

If you already use another software solution to integrate SHEIN with MCF, such as an Order Management System (OMS), Enterprise Resource Planning (ERP), 3rd party MCF connector, or direct MCF API integration, you can configure the MCF SKU mapping and MCF warehouse mapping in your existing solution so that it will not fulfill MCF orders assigned to the MCF for SHEIN app.

Set up MCF for SHEIN app

Connect your Seller Central account and SHEIN Seller Hub account to synchronize your product, warehouse, order and inventory data.

If you already have a Seller Central account and a SHEIN Seller Hub account, log in to your Seller Central account and navigate to the app installation homepage. Follow the steps to connect your Seller Central account with your SHEIN Seller Hub account (semi-managed or self-operated). Provide consent for the app to access your Amazon and SHEIN store, product, warehouse, order, and inventory data. You can only connect one Seller Central account to one SHEIN Seller Hub account.

Configure your MCF warehouse to fulfill your SHEIN customer orders.

You’ll need to create a new warehouse on SHEIN Seller Hub dedicated exclusively to the Amazon MCF app for SHEIN, and set it as your default warehouse for first-priority order fulfillment:

On SHEIN Seller Hub, navigate to Shipping Settings › Shipping Warehouse Address and click Add Warehouse Address.
Complete the form using the following values:
- Warehouse name: MCF warehouse
- Warehouse type: 3rd party warehouse
- Warehouse address: 6050 Gateway Ct, Groveport, OH 43125
- First name / Last name: your contact name
- Contact phone: your contact phone number
- Email: your contact email
- Collection mode: Home pickup
Save.
Click Set Default Shipping Warehouse on the right side of the page and select your new MCF warehouse to assign it first-priority status for order fulfillment.
On the MCF for SHEIN app installation page, select this same warehouse.

Important:

If you later update the MCF warehouse name on SHEIN Seller Hub, the new name will automatically display on the app setup page. However, renaming the warehouse does not change your underlying MCF warehouse configuration. To change the warehouse configuration itself, you must uninstall and reinstall the app with the new warehouse selected.
If the same product is stored in multiple warehouses, customer orders are fulfilled by the warehouse with the higher priority in your SHEIN Seller Hub configuration.

Correctly mapping SKUs between SHEIN and Amazon ensures that your SHEIN customer orders are fulfilled with the correct products from your MCF warehouse. The Amazon MCF for SHEIN app automatically syncs your Amazon and SHEIN product catalogs and maps identical SKUs. Mapped SKUs automatically activate MCF for such SKUs. The required time for this process varies depending on your catalog size.If your catalog size is more than 10,000 SKUs, contact your MCF account manager or the Amazon Seller Support team for additional assistance.

Once the automatic catalog sync and SKU mapping is complete, you will see a notification on the app setup homepage. Review the SKU mapping results on the SKUs mapping page. For unmapped SHEIN SKUs, manually enter the corresponding Amazon SKU to complete the process. To deactivate MCF service at the SKU level, click the … button next to the SKU and remove that Amazon SKU from Mapped SKUs.

When you add new products to your SHEIN product catalog, the app automatically syncs the new products and maps identical SKUs on the SKU mapping page. Please review the new SKUs mapping.

When you change the product title and seller SKU number in your SHEIN catalog, the app automatically updates the product title and seller SKU number on the SKU mapping page. Please review the new SKUs mapping.

Inventory Update

To use the MCF for SHEIN app, you must set up and inbound inventory to the Amazon fulfillment network. Amazon uses a single inventory pool to fulfill your Amazon marketplace orders (FBA) as well as your orders from off-Amazon ecommerce channels (MCF).

The MCF for SHEIN app fulfills orders with fulfillable inventory that’s currently available in the Amazon fulfillment network and displays them in Seller Central and the SHEIN Seller Hub. Inventory that is in the process of inbounding is not used to fulfill orders.

Once you complete the warehouse configuration and SKU mapping steps, the MCF for SHEIN app makes an initial inventory update to your SHEIN Seller Hub account . The app also makes ongoing inventory updates when inventory levels change in the Amazon fulfillment network.

Order Management

The MCF for SHEIN app automatically creates MCF fulfillment orders for SHEIN customer orders assigned to the MCF warehouse. The MCF fulfillment order ID is set to match the SHEIN order ID to help you locate a SHEIN order in Seller Central. The app supports partial order fulfillment when there is not enough inventory to fulfill the entire order. MCF can accept orders of up to 250 units and 100 unique SKUs. For large orders that exceed these limits, split the order into multiple orders and resubmit to MCF.

Once the MCF fulfillment order is created, successfully canceling an order depends on how far it has progressed in the fulfillment process. MCF does not support cancellation at the product item level for orders with multiple items. The SHEIN order status automatically updates based on the MCF fulfillment order status.

MCF sends the shipment tracking ID to SHEIN to help you and your SHEIN shopper track the order fulfillment and delivery status.

Uninstall the MCF for SHEIN app

To uninstall the app, click Uninstall on the app setup page. On the SHEIN Seller Hub, de-authorize the MCF for SHEIN app. After you uninstall the app, you can fulfill the MCF orders manually or use other third-party MCF integration products.

Frequently Asked Questions

Support

If you have an Amazon seller account and need help with setting up your MCF for SHEIN app, submit a case and our support team will assist you. If you want more information about getting started with MCF, contact our sales team.

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Multichannel Fulfillment (MCF) for SHEIN App User Guide

Simplify your SHEIN order fulfillment and provide fast, reliable delivery with Multichannel Fulfillment. Follow the steps below to set up the MCF for SHEIN App.

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