1. First, in the Tik Tok Personal Center interface that opens, select the three dot icons in the upper right corner.

2. Then, in the open page, slide the page down and select the "Feedback and Help" option in the page to enter.

3. Click to enter the feedback help, and then find the "commodity sharing/purchase" option to enter.

4. You can look at the related issues of commodity sharing. Select the "How to Enable Commodity Sharing" option.

5. Click to enter, and you can see the opening instructions of commodity sharing right. Click "More" in the page to enter the application interface.

6. Fill in the application for commodity sharing as required, and then submit the materials. After waiting for the official review, you can open the product window function.