What does it mean when the products subject to a complaint do not fall into the scope of goods/services covered and protected by my trademark registration?

Trademark protection is limited to the class (es) covered by a trademark registration, and it may constitute trademark infringement where the product subject to a complaint falls into the scope of goods covered by the trademark registration.

For example: Where a rights holder has registered a trademark in Class 3 but tries to submit a trademark complaint against products in Class 25 based on the trademark in Class 3, the products subject to the complaint do not fall into the class covered by the rights holder’s trademark.

FAQ of Alibaba Intellectual Property Protection Platform