Hello

This get setup in a lifetime, Under User Management Tab - 

https://success.outsystems.com/documentation/11/managing_the_applications_lifecycle/manage_it_users/create_an_it_user/

but If you are using personal environment then the email which you have used to signup on outsystems and the once which you are using currently will work for you.

Thanks
Tousif Khan

Hi 

If its an enterprise environment and you don't have access then you can simply ask to someone with admin permission for infra. If its personal can follow as suggested by Tousif.

regards