---
lastModified: 2026-09-10
title: "Domain registrant details"
description: "Address is required"
---
**Exact messages**

- Address is required

- City is required

- Must be a 2-letter country code (e.g. US)

- Please enter a valid email address

- First name is required

- Last name is required

- Phone must be in E.164 format (e.g. +1234567890)

- State / Province is required

- ZIP / Postal code is required

**Meaning:** Domain-registration contact details failed validation.

Fill each named required field. Use a valid email, a two-letter country code such as `US`, and an international phone number with `+` and country code as the form requests. Correct only the flagged fields and submit again.

**Success:** The registration form is accepted and checkout can proceed. If valid details remain rejected, report the field name and message without posting the full private address or phone number publicly.

[All preview, publishing, and domain errors](/en/guides/help-and-reference/error-playbook-build)