Can I register outbound/return address only with the form of roadname address?

Please select "JIBUN" as your addressType and register corresponding roadname address. 

{
     "addressType": "JIBUN",
     "countryCode": "KR",
     "companyContactNumber": "02-1111-1111",
     "phoneNumber2": "",
     "returnZipCode": "05510",
     "returnAddress": "Seoul Songpa-gu Songpa street 570",
     "returnAddressDetail": "101-1011"
   }

<How to register address based on addressType Code>
- JIBUN : Jibun (street number) address / Roadname address can be registered individually.
- ROADNAME : Both Jibun (street number) + roadname address required (roadname address alone cannot be registered).