In TalentLMS, when you create a new portal you register your domain, e.g. mysite.talentlms.com. At some point, one may need to change that domain e.g. when a company is acquired by a another one or in the case of a corporate rebranding.
For security reasons, this change cannot be accomplished through the interface. If you'd like to change your domain name, please contact our Support team as described in the How to contact our support team article.