USPS classifies hand sanitizer as a flammable product, and therefore should always be shipped Ground Shipping. There is a huge risk of having flammable items on an aircraft, thus making it the shops' responsibility to ensure that these hazardous items are shipped correctly.
This “Ground Shipping” label is a special label that is not currently offered through the CS shipping platform. Therefore, in the event you are shipping a ground only item, those packages must be taken separately to the post office so that you can purchase the proper shipping label.
Not complying with USPS rules can result in fines and/or USPS canceling services to your business.
The CommentSold team is actively looking into bringing our shops the ability to print Parcel Select labels directly through our system.