For security reasons, once a worker's account has been activated, only that worker can adjust the associated email address.
There are two primary ways that this can be done:
In the Nowsta mobile app, select the More tab, then select Profile Settings to adjust the email address.
An admin (company owner or coordinator) can go to the workers page and send an invitation to the worker. The worker will receive an email at their current email address containing a link that will allow them to update their email.