Issue multiple invoices for a single consignment

Under GST, Can i issue multiple invoices for a single consignement being sent through roadways / courier

Or lets say there are 6 cartons.

Can i create invoice 001 for 3 cartons & then

Invoice 002 for another 3 cartons. 

All 6 being despatched together by single courier on same time to one consignee.

Experts please comment. Thanks