You will receive an email from a business who subscribes to ZE Portal. That email will have a button that leads to your specific portal.
The portal is accessed using a secret hash in the URL. Therefore, you do not need to enter a username or password to access the portal.
If you share the URL link to your portal with anyone else, they will then have access to your portal. This is helpful when your portal includes information about multiple parties, for example a couple applying for a mortgage together.