How to add a new user to cPanel when it is in the "reserved" name list.

Introduction

Ever encounter an issue where you add a new cPanel user, and you receive the following error.

Failed: Account Restore Failed: “Account failure: Failed to create the account: (XID 9tgcb4) “<user>” is a reserved username on this system. at /usr/local/cpanel/Whostmgr/Accounts/Create.pm line 646.

Below is how to correct this issue.

Procedure

According to the following documentation

https://docs.cpanel.net/knowledge-base/accounts/reserved-invalid-and-misconfigured-username/#reserved-usernames

There 3 locations that cPanel refers to when checking for "reserved" usernames.

• /usr/local/cpanel/Cpanel/Validate/Username/Core.pm
• /etc/aliases
• /etc/localaliases

While you can "remove" the user from the aliases files, removing the names from Core.pm is not recommend and would likely be overwritten on a cPanel update.

Once the file is updated, the username will be available for use.