Organization and Tenant Setup
With the stack running and the domain reachable over HTTPS, the next step is to register the organization and confirm that its tenant was created correctly.
Step 1: Create the Organization
Go to onprem.customer-domain.com/org/signup and register, as shown below.
Use the same organization name that was set in ORG_NAME in the .env file during Installation.

Authnull organization sign-up form
Step 2: Verify the Tenant Setup Email
After the organization is created, an email arrives with the subject "Tenant setup: Default Tenant has been created for AuthNull", as shown below.

Tenant setup confirmation email
Step 3: Validate Organization and Tenant Domains
The email contains the tenant login URL, for example default.customer-org-name.customer-domain.com.
Check that this matches the domain configured in DOMAIN_URL in the .env file - the organization name and domain portion should be the same values that were entered there.
Next Steps
Continue to Database MFA and Agent Setup to configure MFA and connect your databases.