The steps are as follows:

1. Log in to the account of Tik Tok Store.

2. enter the "my"-"commodity management" page.

3. Find the ciphertext order button on the product details page. Ciphertext ordering means that when consumers buy goods, they send specific ciphertext information to merchants through private messages to complete the order.

4. Click to add "Ciphertext Ordering Copy" to enter the settings page.

5. In the settings page, you can edit the purchase instructions and the contents of the order. The purchase instructions can include the specifications, prices, payment methods and other related information. The content of the order is the information that the consumer wants to provide to the merchant, such as the delivery address and contact information.

6. After setting, click Save.