The MS-102 retirement is now official, and Microsoft’s own exam page carries a warning banner to prove it: the exam retires on November 30, 2026, at 11:59 PM Central Standard Time. The Microsoft 365 Certified: Administrator Expert certification it feeds goes the same day, and Microsoft’s certification page is blunt that nobody can earn or renew it after that date.<\/p>\n
What replaces it is not a like-for-like swap. AB-650, Administering Microsoft 365 and AI Services, is a single-exam Associate credential that is still in beta, and Microsoft’s published outline puts 35 to 40% of it on Copilot and agent administration that has no counterpart among MS-102’s four listed domains. With about eight weeks left as of October 6, the real question is whether to sit the old exam while it exists, move straight to the new one, or do both. This guide sets out the dates, the exam differences, and a decision path, and it picks up where our earlier piece on Microsoft’s wider 2026 certification retirements<\/a> left off.<\/p>\n Start with what is on Microsoft’s own pages, because several third-party summaries disagree with each other. The MS-102 exam page on Microsoft Learn<\/a> and the Administrator Expert certification page<\/a> say the following:<\/p>\n Search for this retirement and you will find guides that give October 2026, including at least one that says October 31. Microsoft’s current Learn pages say November 30, and a few independent write-ups quote that same date along with the 11:59 PM Central Standard Time cutoff. The sources do not make clear whether the date moved or the earlier posts simply got it wrong. Treat November 30 as the outer limit, and book earlier than you think you need to.<\/p>\n Microsoft’s renewal rules<\/a> say associate, expert, and specialty certifications expire annually and can be renewed for free through an unproctored, open-book online assessment. The renewal window opens six months before expiry, and passing extends the certification by a year from the original expiration date.<\/p>\n Put that next to the retirement notice and an awkward detail appears. If your Administrator Expert expires after roughly the end of May 2027, your six-month window opens after November 30, which is after Microsoft stops allowing renewals. By that arithmetic only holders whose expiry falls in the next several months can still renew. Check your own date in your Learn profile, because Microsoft’s pages do not spell out how a retired credential is shown once it lapses, and you should not assume it simply stays active.<\/p>\n The two exams share a role title and not much else. This table pulls the differences from Microsoft’s exam pages and the AB-650 study guide<\/a>:<\/p>\nWhat Microsoft Has Confirmed About the MS-102 Retirement<\/h2>\n
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Why Some Sites Still Say October<\/h3>\n
The Renewal Cutoff Most Coverage Misses<\/h3>\n
MS-102 vs. AB-650: What Actually Changes in the Exam<\/h2>\n