---
title: Is it possible to register duplicate email addresses when registering as a user?
description: You cannot register duplicate email addresses, but there are ways to avoid duplicate email addresses.
---

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# Is it possible to register duplicate email addresses when registering as a user?

## You cannot register duplicate email addresses, but there are ways to avoid duplicate email addresses.

If you register an already registered e-mail address, "This e-mail address is already in use" will be displayed.

As a workaround, it is possible to add "++" after the e-mail address (user name) and add an arbitrary characters.

For more information, see the link below.

・[How to avoid duplicate email addresses](https://learningbox.online/en/%e3%83%a1%e3%83%bc%e3%83%ab%e3%82%a2%e3%83%89%e3%83%ac1tp1-te3%82%b9%e3%81%ae%e9%87%8d%e8%a4%87%e5%9b%9e%e9%81%bf%e31-tp1t81%ae%e6%96%b9%e6%b3%95%e3%81%ab%e3%81%a4%e3%81%84%e3-81%a6/)

 

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