To conduct content marketing on AliExpress, you need to follow the steps below:

1. Log in to your AliExpress account and enter your store management backend;

2. Find the "Marketing Center" or "Marketing Promotion" option in the left menu bar;

3. In the Marketing Center page, find the "Content Marketing" or "Content Promotion" option;

4. In the Content Marketing page, select the type of marketing campaign you want to create, such as "Coupon", "Discount", "Gift", etc.;

5. According to the type of marketing campaign you choose, fill in the corresponding information, such as event name, event time, event rules, etc.;

6. In the Marketing Campaign page, select the products you want to promote and set the corresponding promotion methods, such as "Targeted Promotion", "Whole Store Promotion", etc.;

7. In the Marketing Campaign page, set the corresponding promotion budget and promotion expenses, and confirm your marketing campaign settings.

Please note that the specific operations may vary depending on the AliExpress platform version and interface design. It is recommended that you make adjustments based on the actual situation.