Inward Supplies field in Documents Issued Section in GSTR-1

I have observed that in the GSTR-1 return under the head " Documents Issued" there is a field  "Invoices for Inward Supplies from Unregistered Persons"  .  Does this mean that if we purchase say any service such as transport services from an unregistered transporter , then accordingly we have to fill up the data here ? When we supply goods to our clients we are delivering the consignments to them with the services of an unregistered transporter . 

Please guide and advise. Thanks.