After the seller has shipped the goods, the buyer's mobile phone number can no longer be modified. When the transaction status is "the buyer has paid", if the buyer indicates that the mobile phone number needs to be changed, the seller can modify it before shipping. There are two methods:

Method 1:

1. The seller logs in to [Seller Center] - [Sold Products] - [Waiting for Shipment], finds the order that needs to be modified, and clicks "Details":

2. Click "Modify Delivery Address":

3. Fill in the relevant recipient information as required by the page, and click "Confirm". The mobile phone number has been modified successfully, and the seller can check and confirm the new mobile phone number in "Receipt and Logistics Information".

Method 2:

1. The seller logs in to [Logistics Management] - [Shipping] - [Orders Waiting for Shipment] and clicks "Shipping" after the specific order:

2. Click "Modify Receipt Information", fill in the new mobile phone number, and click "Confirm".