SC-900 renewal and retake rules
SC-900 does not expire, so no renewal is ever due: Microsoft states that fundamentals certifications do not expire, and the free annual renewal assessment applies only to associate, expert and specialty certifications. The rules that do matter for SC-900 are the retake limits (24 hours after a first failure, 14 days between later attempts, at most five attempts in 12 months) and what the October 21, 2026 exam update means for anyone mid-study. Everything below comes from Microsoft Learn pages checked on 2026-10-09.
Why the SC-900 certificate has no expiry date
Microsoft’s renewal page says renewals are for associate, expert and specialty certifications, and adds the sentence “Fundamentals certifications do not expire.” Those other credentials are renewed through a free, unproctored, open-book assessment on Microsoft Learn inside a six-month window, which extends them by one year. None of that applies here.
Practical consequences:
- There is no renewal fee, reminder email or assessment to schedule for SC-900.
- Your credential stays valid even if you never touch Microsoft certification again.
- Passing a later associate exam such as SC-300 or SC-200 starts a renewal clock for that credential only, not for SC-900.
- Microsoft’s pages do not describe the fundamentals credential being replaced or revoked when the exam is updated. Microsoft does not say that an old pass is invalidated by a new outline, and the retake policy bars retaking an exam you have passed unless the certification has expired, which cannot happen here.
Because of that last rule, you cannot pay to “refresh” a passed SC-900 for a newer version. If you want proof of newer knowledge, take a role-based exam.
The retake ladder, attempt by attempt
Microsoft’s retake policy covers role-based, specialty and fundamentals exams together, so SC-900 follows it.
| Attempt | Rule |
|---|---|
| After the 1st failure | Wait 24 hours |
| Every later attempt (up to 5) | Wait 14 days between attempts |
| Limit | No more than five attempts in 12 months, counted from the first attempt |
| After five failures | Eligible again 12 months after the date of your first attempt |
| After a pass | You cannot retake it unless the certification has expired |
| Fee | You pay again for each retake, where a fee applies |
The 24-hour first retake is shorter than most vendors allow, but it is a trap if you use it to simply re-read your notes. A better plan is to use the score report breakdown to find the weak skill area, then spend those days on that area before rebooking.
When the waiting period can be waived
Microsoft grants a waiver of the waiting period only if you had internet connectivity issues or equipment failure during the exam and a Pearson VUE case was created. The request must include that case number and goes through Microsoft Training, Certification, and Program Support. For any other reason, Microsoft says you do not qualify. If you hit a technical problem, open the Pearson VUE case during the session, not afterwards.
The October 21, 2026 update and your booking
The English SC-900 exam changes on October 21, 2026. Microsoft’s study guide holds both outlines and a change log: the Entra identity-types section and the Defender XDR section are “Minor”, everything else is “No change”. Localised versions follow about eight weeks after English, though Microsoft says that schedule is not guaranteed.
What this means for timing:
- Failed before October 21, retaking after: the 24-hour and 14-day waits count from your last attempt, not from the update, so you may meet the new version on the retake. Study to the new outline, and see the exam format page for the changes.
- Booked in a non-English language: you may sit the previous outline for roughly two months longer.
- Already passed: nothing happens. Your credential is not re-tested.
For a broader view of how Microsoft revises exams, see exam changes.
What Microsoft does not publish on these pages
- The number of questions, and how raw answers convert to the scaled 700.
- A single worldwide price: it depends on the country or region where the exam is proctored.
- A discount rule for retakes. Microsoft lists an Exam Replay offer on the certification page, but terms and availability vary, so read them at the time of booking.
Accommodations, including extra time for non-English availability or assistive devices, are requested through Microsoft’s accommodation process before booking; the study guide links to it.
How this differs from the associate exams
If your plan continues past SC-900, expect the opposite regime on the next credential. Associate security exams expire after one year and renew free on Learn, with a separate renewal retake rule: unlimited tries, immediately after the first, and at least 24 hours between later attempts after the second. SC-900 is the only one in your path with no clock. The career page shows the order those exams usually come in, and the Microsoft security path lays out the full sequence.