Working across different organizations
One user can work across different organizations.
For example, if you have created an account under your email, you have the organization you use, and in it, you have your users, settings, and accounting units. However, someone else can invite you to their organization. You will receive a notification by email about an invitation to an organization called XX, and click to accept the invitation.
Every organization has its own settings, users, and accounting units. Therefore, if you are invited to another organization, you will have permissions according to the user role assigned to you by the person who invited you.
You can switch between individual organizations by clicking on the organization name in the top left: