Conditional Access without the Monday lockout
Looking for a practical Intune starter pack? Launch week: Intune & M365 Admin Starter Pack — $19 → https://cashflow4375.gumroad.com/l/joonf (normally $29).
Most CA disasters aren’t “bad policies.” They’re enforce-first policies: All users + Require MFA / Require compliant device, flipped On overnight, with no pilot and no break-glass.
Here’s a safer pattern that still gets you to Enforce.
1. Name policies like change tickets
Use a boring, searchable name:
CA - Require MFA - Cloud apps - Pilot - ReportOnly
Include who, what, scope, and phase (ReportOnly / Enforce). Future you (and 3am you) will thank you.
2. Pilot group before All users
Create an Entra security group like CA-Pilot-Wave0 (IT + volunteers). Include that group. Exclude break-glass accounts from day one.
Do not start with “All users” on a Block or hard Require Compliant policy.
3. Report-only is not optional theater
For any net-new control:
- Enable = Report-only
- Run What If for a pilot user and a break-glass user
- Watch Insights and reporting for several business days
- Fix false failures (MFA registration gaps, compliance flap, legacy clients)
- Only then set Enable = On for the pilot
If Insights shows a pile of “would block” for expected workflows, you are not ready.
4. Break-glass before Enforce
At least two cloud-only break-glass accounts, excluded from CA, monitored, passwords in a sealed process. If you enforce without them, your rollback plan is “pray the other Global Admin is online.”
5. Expand in waves
Pilot → IT → one department → everyone else → guests last. Prefer nested groups over editing All users every week.
Common failure cards (short)
| Symptom | Likely cause | First check |
|---|---|---|
| MFA prompt loops | Registration incomplete / Authenticator issues | Sign-in logs + MFA registration |
| “Device not compliant” | Intune compliance not green yet | Device compliance + sync |
| Outlook / IMAP fails | Legacy auth blocked | Modern auth client or time-boxed exclusion |
| Admin locked out | No CA exclusion for break-glass | Break-glass + emergency access plan |
Get the Intune starter pack (launch week $19)
Launch week: the Intune & M365 Admin Starter Pack is $19 (normally $29) — five practical playbooks (enrollment hygiene, compliance + CA phasing, read-only snapshot scripts, M365 admin hygiene, break/fix runbook).
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Going deeper on Conditional Access? The Entra ID Conditional Access Starter Pack ($29) adds CA rollout playbooks plus read-only Graph exports: https://cashflow4375.gumroad.com/l/nhuyrc
Not affiliated with Microsoft. Operational guidance for admins authorized to manage their tenant. Test in pilot first.
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