AI-300 renewal and retake rules
The AI-300 certification is valid for one year, and it renews for free through an unproctored, open-book online assessment on Microsoft Learn that opens six months before expiry. If you fail the exam itself, you wait 24 hours for the second attempt, 14 days for each later one, and you may sit it at most five times in 12 months. These rules come from Microsoft’s general credential policies, which apply to AI-300 as to other role-based exams. Microsoft does not publish AI-300-specific renewal terms, and no separate fee or schedule applies to this exam. The career side is covered in what AI-300 leads to.
The one-year clock on the Machine Learning Operations Engineer credential
Microsoft’s expiration policy says associate certifications are valid for one year from the date you complete all requirements. For AI-300 that means the day you pass, because one exam earns the credential. Fundamentals credentials do not expire, but the Machine Learning Operations Engineer Associate is not a fundamentals credential, so the clock runs.
One wrinkle applies to people who sat the exam early. AI-300 first ran as a beta exam, as the exam format page explains. Microsoft’s policy says that for a certification earned through a beta exam, the achievement and expiry dates are based on the date the beta was rescored, roughly ten days after the exam went live, so beta candidates were not penalised for waiting on results. If you passed in beta, check the dates on your Learn profile rather than counting from your exam day.
Renewing AI-300 on Microsoft Learn, step by step
The renewal FAQ sets out the mechanism:
- Six months before expiry, a blue Renew button appears next to the certification in your Microsoft Learn profile. Dates and times are in UTC. You cannot renew earlier than that.
- The assessment is free, online and unproctored, and it is open book. It focuses on recent updates, not the full exam, and Microsoft says it takes about 45 minutes.
- There is no cap on attempts. After a failed first try you can retry immediately, and after the second try you wait at least 24 hours between attempts.
- A pass moves the expiry date out by one year from the existing expiry date, as Microsoft’s renewal page puts it, not from the day you took the assessment. The date on your profile updates straight away.
Because the window is six months wide, there is no benefit to waiting for the last week. Microsoft itself recommends taking the assessment well before expiry, to leave room for technical problems or several attempts. Reminder emails are sent only if your Learn profile has an email address and you agreed to communications.
When the AI-300 date passes without a renewal
There is no grace period and no second route. The FAQ states that passing a beta exam or retaking the exam does not renew a certification, and that the only path is the renewal assessment before expiry. If the date passes, the expiration policy says you can no longer renew that certification and must pass the required exam again, in this case AI-300, at full price.
Version changes and the renewal assessment
The FAQ says renewal assessments are updated in step with certification exam updates, and that they appear in the same languages as the exam. AI-300 is offered in English only, so its renewal assessment follows suit. In practice, the renewal assessment you meet in a year’s time will reflect whatever Foundry and Azure Machine Learning features Microsoft has added by then. The study guide for the exam is dated February 2026 and states that Microsoft may include preview features if they are commonly used, which suggests the renewal content will move quickly. Microsoft does not publish a revision schedule for the AI-300 outline.
The DP-100 case shows what retirement means. The Azure Data Scientist Associate page now states that both the certification and its renewal assessment are retired, so holders cannot renew it; the DP-100 comparison covers the replacement. Microsoft’s policy says a retired credential stays in the Active section of your transcript until it expires if it has an expiry date. A holder who wants a current Microsoft credential in this area earns AI-300 as a new certification, not a renewal.
The 24-hour, 14-day and five-attempt retake rules
The retake policy for role-based exams reads:
| Situation | Rule |
|---|---|
| First failure | Wait 24 hours |
| Each later attempt | Wait 14 days, up to five attempts |
| Limit | No more than five attempts in 12 months from the first attempt; after five failures you can retake 12 months after the first attempt |
| Cost | You pay again for each retake, where a fee applies |
| After a pass | You cannot retake a passed exam unless the certification has expired |
A waiting-period waiver exists only for internet connectivity problems or equipment failure during the exam, with a Pearson VUE case number as proof. No other reason qualifies. Beta exams followed a separate rule, which applied to early AI-300 candidates: a failed beta could be retaken once the exam was live.
Two details are not covered by the retake policy and so are left to the exam’s own pages. Microsoft publishes no AI-300 pass rate or question count. The certification page does state that candidates who need extra time or assistive devices can request an accommodation, and the study guide adds that when an exam is not available in your preferred language, you can request an additional 30 minutes.
Cost of a lapse versus cost of a reminder
The costs are asymmetric. Renewal is free and open book, while a lapse sends you back to the paid, proctored, 120-minute exam. A calendar reminder six months before your expiry date, set the day you pass, is the cheapest protection available. See the certification costs page for how exam fees compare across vendors, and the exam changes page for outline updates.