MS-721

MS-721: Collaboration Communications Systems Engineer

More study resources

About this exam

MS-721 is the exam behind the Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate credential - an intermediate-level, administrator-role certification built around Microsoft 365. It is aimed at the engineer who plans, deploys, configures, maintains, and troubleshoots the collaboration and communications estate of an organization: Teams Phone, Teams meetings, webinars, and town halls, Teams Premium, Teams Rooms and other certified devices supporting flexible workplaces. Candidates are expected to bring a fundamental understanding of networking, telecommunications, audio/visual and meeting room technologies, and identity and access management, and to be fluent in the Teams admin center, the Teams Rooms Pro Management portal, PowerShell, and the Microsoft Call Quality Dashboard. The exam measures four areas: planning and designing collaboration communications systems; configuring and managing meetings, webinars, and town halls; configuring and managing Teams Phone; and configuring and managing Teams Rooms and devices. Preparation works best as a mix of the study guide published by Microsoft, hands-on configuration in a test tenant with telephony and at least one certified device, and a run through the exam sandbox. Microsoft notes that the English-language version is scheduled for update on October 29, 2026, so re-check the objectives before booking.

What you'll study

Common questions

About MS-721 preparation

How long is the exam, and is it proctored?

You have 100 minutes to complete the assessment. The exam is proctored, and it may include interactive components in addition to standard item types. Microsoft points candidates to its exam duration and exam experience guidance for how timing works, so budget part of your 100 minutes for any hands-on sections rather than assuming it all goes to multiple-choice items.

What happens if I fail - when can I retake it?

You can retake the exam 24 hours after the first attempt. For subsequent retakes, the amount of time you must wait varies, so check Microsoft's exam retake policy for the current details before booking a third sitting. Practically, plan your study schedule assuming a possible second attempt the next day.

How long does the certification stay valid?

The renewal frequency is 12 months, so the credential does not stay active indefinitely. You renew at no cost by passing an online assessment on Microsoft Learn instead of retaking the full exam. Put the renewal date on your calendar - the assessment covers the latest updates to the technology for the job role.

Who is this certification actually for?

It is an intermediate-level credential for administrators working with Microsoft 365. The typical candidate plans, deploys, configures, maintains, and troubleshoots collaboration communication systems, and has a fundamental grasp of networking, telecommunications, audio/visual and meeting room technologies, and identity and access management. Expect to work alongside Teams, identity, and Microsoft 365 administrators, plus facilities and network owners.

Which languages is the exam offered in?

The exam is offered in English, Chinese (Simplified), French, German, Japanese, Portuguese (Brazil), and Spanish. Availability can shift between revisions, so confirm your preferred language is listed when you schedule through Pearson VUE. Keep in mind that the English-language version is the one Microsoft flags for upcoming objective updates.

How much does the exam cost?

There is no single global figure: pricing is based on the country or region in which the exam is proctored, so the amount depends on where you sit it. Check the Pearson VUE scheduling flow for your local price. Register with a personal Microsoft account - records tied to an organizational account can be lost permanently if you leave that organization.

How many questions are there, and what is the passing score?

Microsoft does not state a question count or a passing score on the exam or certification pages, so treat any fixed number you see elsewhere with suspicion. Aim for consistently high practice results and review every missed objective against the study guide rather than chasing a specific cut score.

In what order should I study the four measured areas?

Start with plan and design, because those decisions frame everything downstream. Then take meetings, webinars, and town halls, followed by Teams Phone, and finish with Teams Rooms and devices. Pair every area with hands-on configuration in a test tenant - scenario-style items reward people who have actually built dial plans, policies, and room accounts.

What are the most common ways candidates lose points?

Two patterns dominate: design and troubleshooting scenarios that cross areas - a phone deployment that depends on network and identity choices, for example - and PowerShell cmdlets candidates have only read about. Build a lab tenant, register a certified device, run the Call Quality Dashboard, and rehearse in the exam sandbox so the interface is familiar before exam day.

Is the exam changing soon?

Yes - Microsoft states that the English-language version of this certification will be updated on October 29, 2026, and directs candidates to the study guide for details about the changes. If you plan to test near that date, download the current study guide and compare the objective list before booking so you are not preparing against retired material.