PortalXpand offers you two instances i.e. Live and Sandbox. You can keep the Sandbox environment to test your portal or keep the Live environment.
Login to Backend
Go to Settings ➤ Portal Settings ➤ CRM Authentication, you will land on the CRM Authentication page.
Environment: Select the Live or Sandbox instance for the portal.
After configuring the field, click on the “Save” button to save the configuration in your portal.