Modern Work & M365

Proven rules for collaboration in Microsoft 365

Not another off-the-shelf best-practice PDF. These are the rules we start with in M365 projects. Compact, no lecture, ready to use.

5 min read September 2026 Free download
Get the guide → The logic behind it

The problem

The licenses are rolled out. The collaboration is not.

We introduce Microsoft 365 with clear collaboration rules from day one. Without them, this is what usually happens after the rollout: Teams is live, the kick-off has been held. And still, the important decisions happen in private chats. One file exists in three versions in three places. When something urgent comes up, the phone rings, because nobody knows where the answer was supposed to be.

Microsoft 365 solves none of this on its own. Teams, SharePoint, Planner and OneDrive can do a lot. But as long as nobody has agreed who communicates where, where knowledge is stored and who is responsible for what, old habits and new tools simply sit side by side. The licenses still cost money, only the effect fails to appear.

The obvious answer would be to agree on a few rules. In practice, that usually fails at the same point: it stays a verbal agreement made in a meeting that nobody remembers two weeks later. So what is missing is not a new idea. What is missing is a reference point you can come back to.

The gap between "we all know this" and "we actually do this" is remarkably wide in most teams.

The logic behind it

Two questions decide where you communicate

In daily work, nobody asks "how does Teams work?". The question is: "where do I put this?"

The load-bearing criterion in the guide is access: we communicate where everyone involved has access. In practice that comes down to two questions: how urgent is it? And how long does it need to stay findable?

Topics that are both urgent and lastingly relevant end up in one-to-one chats far too often, and are effectively lost two weeks later. Those belong in the channel, where the whole team can still find them. The phone call stays responsible for what has to be settled right now. The two do not exclude each other: urgent matters are settled by phone, and the outcome is recorded in the channel afterwards.

And what is not urgent but has to keep applying? It stays in the channel while people are still talking about it, and becomes a shared document once it is settled: saved once in SharePoint, findable for everyone. The one-to-one chat is for everything nobody will care about two weeks later.

Communication decision matrix: which channel, when Two axes: vertically from non-urgent to urgent, horizontally from short-lived to long-lived. All four fields are occupied. Top left, urgent and short-lived, is the phone call. Top right, urgent and long-lived, is call first, then channel. Bottom left, non-urgent and short-lived, is the one-to-one chat. Bottom right, non-urgent and long-lived, are the Teams channel and SharePoint. This field is highlighted because it holds everything that has to stay findable. urgent (real time) not time-critical short-lived long-lived Call One-to-one chat Call, then channel Teams channel SharePoint
This overview is in the guide too, on the back.

What it delivers

Fewer follow-up questions, less searching, less duplicated work

The rules take effect in the three areas that create the most friction in daily work. One rule from each area is quoted here word for word, the other ten are in the guide.

Communication

Decisions stay findable.

Nobody has to guess where something should be written down. Decisions no longer disappear into one-to-one chats, they sit where the team can still find them three months later.

Channel before chat. "Anything relevant to several people or important long term belongs in channels. Chats are for quick check-ins."

Documents & knowledge

Files are searched for once, not three times.

It is clear what belongs in shared storage and what stays a personal draft. Drafts do not accidentally become team knowledge, and the valid version is recognizable.

Store where the work happens. "Share documents directly in the team or channel rather than as email attachments."

Tasks & organization

Every task has an owner and a date.

Commitments made in meetings are captured in a traceable way instead of fading away in minutes. What Microsoft 365 already includes is enough for this.

Owners and deadlines. "Every task has a responsible owner and a defined due date."

Much of this sounds like common sense. It is. In most teams it is still handled differently from person to person, because it was never agreed on together. That is exactly the gap the guide closes: a shared reference everyone can point to, instead of rules that only exist verbally.

Timing

When you need the guide

Collaboration rules work best before habits have settled. These four moments are the right time:

  • Before the M365 rollout: the best moment. Rules that are in place before the first login never have to be renegotiated later.
  • Shortly after the rollout, when the old habits return: typically after a few weeks. The tools are there, but people work the way they always did. The window is still open.
  • Before the next kick-off or team meeting: a guide you go through together in ten minutes and treat as the reference from then on.
  • When new colleagues join the team: unwritten rules have to be guessed. Written ones can be handed over on day one.

And if none of these moments is coming up? Then now is the second-best time. Every week without a shared agreement reinforces the habits that later have to be broken up with effort. Introducing rules retroactively takes far more convincing than agreeing on them once.

Free download

See for yourself what is in it

No sales pitch, no 40-page brochure. A guide you can read in five minutes and share with your team today.

What you get

  • All 13 M365 collaboration rules, each in one sentence
  • Plus an overview of which channel fits when
  • Ready to use, no training required
  • Tested in prosma projects, not drawn up on a drawing board
  • Made for sharing in a kick-off or team meeting

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Frequently asked

What you want to know first

Who is the guide for?

For teams and organizations that already use Microsoft 365 or are introducing it right now, and want to structure their internal collaboration more clearly: communication, document storage, task organization.

Does the guide replace an M365 adoption strategy?

No. The guide replaces neither a technical rollout nor a governance concept. It adds the behavioral rules that make the difference in daily work.

Can we adopt the rules as they are?

Yes. The rules are deliberately written to be generally applicable and can be discussed and adopted directly in a kick-off or team meeting.

What if our team already has its own rules?

Then use the guide as a cross-check. Many teams find while reading that some points were only ever verbally clear, or handled differently from person to person.

Where do the recommendations come from?

From our project work on introducing modern collaboration with Microsoft 365, not from a product brochure.

What happens to my email address?

It is used to send you the download link and is recorded internally. You only receive further emails from prosma if you ticked the second checkbox.

Next step

From the guide to collaboration that holds

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Modern Work & Microsoft 365

When it takes more than a guide: adoption, governance and information architecture for M365, developed together with the business units.

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