You cannot proceed if there are any “mandatory” items that you have not filled in, or if there is an error in the entry format, etc., of what you have entered.
Check the field(s) with errors highlighted in red.
(Entry items and entry rules)
| Entry items | Mandatory/Optional | Entry rules |
| Last name | Mandatory | Up to 25 characters |
| First name | Mandatory | Up to 25 characters |
| Last name (phonetic reading in katakana) | Mandatory | Up to 25 characters, in full-size |
| First name (phonetic reading in katakana) | Mandatory | Up to 25 characters, in full-size |
| Date of birth | Mandatory | Format: yyyymmdd (e.g.: January 23, 2006 → 20060123) |
| Gender | Mandatory | ― |
| Postal code | Mandatory | 7 digits (excluding hyphen) |
| Prefecture | Mandatory | List selection |
| City, ward, county, town, village | Mandatory | Up to 12 characters |
| Name of town | Mandatory | Up to 18 characters. If the address does not include a town name, please check "None". |
| Block number | Mandatory | Up to 12 characters. If the address does not include a Block number, please check "None". |
| Building/room number | Optional | Up to 25 characters |
| Mobile number | Mandatory | 11 digits (excluding hyphen) |
| Building/room number | Optional | 10 to 11 digits (excluding hyphen) * Your “IP phone” number (that begins with 050) should be registered here. |