The reason why there is no permission for Taobao's full-site promotion may be that your store has not yet met certain conditions set by the Taobao platform. This includes factors such as the completeness of the store information, the improvement of the store level, and participation in Taobao platform-related activities.

In addition, if your store has violated regulations, such as false shipments, the platform may restrict store promotion. To solve this problem, it is recommended that you carefully review the relevant rules and notices of the platform, complete the store information as required, improve the store level, and avoid violations.