The account requires permissions to be allocated after purchase before the custom modules can be used. The usage period of the account will be counted from the day the permissions are allocated. (Note: Store verification is required before allocation. Each service or service package can be recalled within 72 hours after the first allocation, with a maximum of 3 recalls. After 72 hours, services cannot be recalled but can be reallocated.)

1. On the homepage of the official website, left-click on "Merchant Center" to enter the settings page of the Merchant Center;

2. After completing the store information, go to Assets -- Service Management -- Pending Allocation directory, find the service package that needs to be allocated, and click the allocate button;

3. In the service allocation popup window, scroll down to select the account that needs to be allocated, and click confirm to allocate. After the allocation is successful, refresh and enter 3D design to have custom options.