Here are the answers to your questions about DXPID and its connection to the "9810" customs declaration.

### 📌 What is DXPID?

A **DXPID (Data Exchange Platform Identification)** is a unique identification number assigned to enterprises for transmitting electronic data to and from the China Customs system .

* **Full Name**: Data Exchange Platform User ID or Message Transmission ID.
* **Purpose**: It serves as the primary identifier for cross-border e-commerce companies, logistics providers, and payment service providers when they exchange business data (such as orders, logistics information, and payments) with the national customs data platform. This ensures the accuracy and traceability of information.
* **Relation to 9810**: While DXPID is used for transmitting data for various e-commerce customs codes (like 9610, 9710, 1210), it is also a required technical identifier for enterprises engaging in "9810" (Cross-border E-commerce Export to Overseas Warehouse) if they choose to connect their systems for data exchange .

### 📝 Is DXPID Required for 9810 Declaration?

**No, applying for a DXPID is not a mandatory prerequisite for filing a 9810 declaration.**

You can understand their relationship as follows:
* **DXPID** is primarily for **system integration and automated data transmission**. Companies that have their own internal systems (e.g., ERP, WMS) and need to directly connect with the China International Trade "Single Window" to automatically exchange declarations and logistics data must apply for a DXPID for technical configuration .
* **9810 Customs Declaration** is the **actual business procedure** for declaring goods to be exported to an overseas warehouse. The core requirements for this procedure are different.

The essential steps to initiate "9810" business are:
1. **Complete Enterprise and Overseas Warehouse Filing**: You must first file with the customs authority where your company is located. This includes registering as a cross-border e-commerce enterprise and filing information about your overseas warehouse (e.g., address, ownership/lease agreements).
2. **Declaration via "Single Window"**: The 9810 declaration itself is submitted by filling out and filing a customs declaration form through the "Single Window" portal, selecting "9810" as the supervision method.
3. **DXPID (Conditional)**: Apply for a DXPID **only if** you plan to use a **system-to-system connection (API integration)** for automatic data submission instead of manual entry on the "Single Window" website.

### 🔄 How to Apply for DXPID

If you determine that your company's operational model requires a DXPID, the general application process is as follows. Note that specific steps and required documents may vary slightly by local customs jurisdiction.

**Step 1: Preparation**
Ensure your company has completed the necessary **customs registration** and obtained a 10-digit customs code.

**Step 2: Submit Application**
* **Access the Application Form**: Log in to your local **International Trade "Single Window"** (e.g., Shandong, Shanghai, or your province's portal).
* **Find the Form**: Locate and download the form, typically named "Cross-border Uniform System Enterprise Access Application Form".
* **Complete the Form**: Fill in details such as your company's information, customs code, and the specific e-commerce business model (e.g., 9810).
* **Submit the Form**: Submit the completed form along with required business documents (like a business license) as specified by your local electronic port or customs data center.

**Step 3: Technical Configuration**
After the application is approved and the DXPID is issued:
1. You may need to contact the "Single Window" technical support to activate or configure this ID in the background system.
2. Your technical team will need to configure your internal system based on the customs data exchange standards to use this DXPID for data transmission.

### 💡 Key Considerations

* **Different Local Portals**: Procedures might differ across regions. It is best to consult the **official help section or customer service** of your local "Single Window" portal (e.g., `singlewindow.sd.cn` for Shandong) for the most accurate and up-to-date application guide.
* **Focus on Core Business Filing**: For new "9810" exporters, the initial priority should be on **completing the overseas warehouse filing with customs**, not on the DXPID application.

I hope this clarifies the relationship between DXPID and 9810 customs declarations. If you can specify your company's location, I may be able to provide more localized information resources.