AB-100

It is the required exam for Microsoft Certified: Agentic AI Business Solutions Architect Expert. Passing the exam is only part of the requirement - you must also earn at least one of the associate-level prerequisite certifications Microsoft lists, so check that list before you schedule.

Microsoft publishes three skill areas: Plan AI-powered business solutions (35–40%), Design AI-powered business solutions (30–35%), and Deploy AI-powered business solutions (20–25%). The passing score is 700. Plan and design together dominate, so do not spend most of your study time on deployment mechanics alone.

Yes. Microsoft states that in addition to passing AB-100 you must earn at least one associate-level prerequisite certification, for example PL-200, PL-400, MB-500, MB-800, AI-103, AI-300, AB-210, AB-410 or AB-620. Confirm the current list on the exam page, since it is longer than the few examples here.

Microsoft's exam page does not publish an item count or a duration for AB-100. Rather than planning against a number from a third-party source, budget a normal certification-length appointment and use the official exam sandbox to see how the interface and navigation behave before test day.

It is pitched at experienced architects, not beginners. The published competencies assume hands-on work with Copilot Studio, AI prompts, Azure AI Foundry and multiple language models, plus design judgment on security, governance, cost/benefit and lifecycle. Holding a relevant associate certification first makes the architectural content far more tractable.

Start with the official AB-100 study guide to map the skills measured. Then work through the Microsoft Learn course Architecting agentic AI business solutions, which is explicitly architectural rather than step-by-step configuration. Follow with the practice assessment in AI Skills Navigator (sign-in required) and the exam sandbox, then fill gaps the practice questions expose.

Over-preparing on configuration detail and under-preparing on trade-offs: governance and responsible AI, data residency and access control, defending against prompt manipulation, audit trails, ALM and environment strategy including third-party AI, and ROI analysis. Weak familiarity with A2A and MCP open protocols is another frequent gap, since the exam explicitly names them.

Microsoft states the English version is updated on November 16, 2026, with localized versions following roughly eight weeks later. Review the linked study guide for the latest changes. Unless the update is imminent for your scheduled date, sitting now is reasonable; the published skill areas remain the same.

The exam page does not state a retake policy, so check Microsoft's official exam policies and FAQs before rescheduling. The exam is offered in English, Arabic (Saudi Arabia), Japanese, Chinese (Simplified), Chinese (Traditional), Korean, German, French, Indonesian, Italian, Portuguese (Brazil), Russian and Spanish; there is no announced retirement date.