Guide / Automation
Power Automate for a small business: what it is good for, and where it breaks.
Most Australian small businesses are already on Microsoft 365, which means they already own a workflow tool and mostly do not use it. Power Automate is genuinely good for a set of jobs. It is also the tool behind more silent failures than anything else we get asked to look at.
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What it is good for
Power Automate is at its best when the whole job lives inside Microsoft 365 and the logic is simple.
- Approvals: a form in, a manager clicks approve in Teams, a row lands in a list
- Notifications: when a file lands in this folder, tell that channel
- Hand-offs between Outlook, SharePoint, Teams, and Excel that somebody currently does by hand
- Scheduled nudges, like the weekly reminder that nobody has to remember to send
- Simple document generation from a template when a record changes
The four ways it breaks
Every small business we have looked at has the same four problems, usually all at once.
- It runs on a person. Flows are owned by whoever built them, on their login. When that person leaves, the flows keep running until their account is disabled, and then they all stop on the same afternoon.
- Nothing tells anyone it failed. A failed run is an email nobody reads, or an error in a place nobody looks. The default is silence.
- Nobody knows what it does. Forty flows built over three years by three people, no naming convention, no list, no owner. Turning one off is a gamble.
- It hits a wall. Premium connectors need extra licensing, throttling kicks in on busy days, and anything that needs real logic, matching, or a loop over thousands of records becomes slow, fragile, or both.
How to run it properly
Flows belong to a service account the business owns, not to a person. Every flow has a name that says what it does, an owner, and a line in an inventory. Every flow that matters has a failure path that tells someone, and a heartbeat check for the ones that should run on a schedule.
That is not much work. It is just work nobody does when the goal is to get the thing running by Friday. Doing the inventory first usually finds that half the flows can be switched off, which is the cheapest automation project there is.
When to move it to code
The line is logic. If a workflow needs to match records between systems, handle exceptions, loop over more than a few hundred items, or talk to a system without a good connector, it should be code. Not because Power Automate cannot be bent into doing it, but because it will be slow, hard to read, and impossible to test.
The two work together. Power Automate for the approvals and the notifications, where its Teams integration is unbeatable. Code for the reconciliation, the integration, and the scheduled job with real logic in it. Both on accounts the business owns, both logged, both watched.
Where this goes next.
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