If your AliExpress SKU is demoted, you can take the following measures to restore it:

1. Check and fix product information: First, you need to check your product information, including title, description, pictures, etc., to ensure that they meet the requirements of AliExpress. If you find any problems, please correct them and resubmit.

2. Improve ratings and credibility: You need to improve your store ratings and credibility to increase AliExpress's recognition of your products. You can do this by actively responding to customer reviews, ensuring product quality, and providing high-quality after-sales service.

3. Maintain a good sales record: You need to maintain a good sales record, including sales and transaction volume. This will help improve your store's ranking and credibility in AliExpress.

4. Optimize logistics: You need to ensure the speed and accuracy of your logistics. If the logistics of your product is slow or there is a problem, your store may be affected.

5. Contact AliExpress customer service: If you still cannot restore your SKU