Can you please describe the steps you went through in activating your CloudGuard SaaS portal? Did you select the Manual Mode for onboarding of Office 365?
If that's the case, you can do a right click on the overview of the Threat Protection module and click View Frame Source. In the new tab that opens, check the URL to get your portal name.
Please note that in the next release of CloudGuard SaaS (expected to happen some time in January), the portal name will be displayed to the admin in the pop-up allowing to select your preferred onboarding mode for Office 365.
If you are still experiencing issues after setting up the journal rule, please submit a ticket to Check Point's TAC so that we may assist you further.
You can also reach out to me directly if you have any questions regarding to the product.
Abigael Saal Levy
RnD Product Manager - firstname.lastname@example.org