Optionalcustom_Your own Order ID that will be printed instead of Printful's Order ID
Optionalemail?: stringCustomer service email
Optionallogo_URL address to a sticker we will put on a package
Optionalmessage?: stringCustom packing slip message
Optionalphone?: stringCustomer service phone
Optionalstore_Store name override for the return address
The values for customized packing slip