Approvals slow businesses down. A purchase order sits in someone's inbox while they're in back-to-back meetings. A leave request waits for a manager who only checks email once a day. A budget sign-off gets missed because the approver never opened the Teams notification. Every hour an approval sits idle is an hour a project, a purchase, or a customer waits with it.
Microsoft Teams is where a lot of Australian businesses already run their approval workflows, using the built-in Approvals app or Power Automate. But Teams notifications compete with chat messages, meeting reminders, and email alerts — and if the approver is away from their desk or their laptop is closed, the request just sits there. SMS solves that problem by reaching the approver wherever they are, on the one channel almost everyone actually reads within minutes.
This guide explains what an SMS approval workflow is, why it matters for Australian teams, and how to set one up using Microsoft Teams, Power Automate, and the DataFlows SMS API — so approvers can reply YES or NO from their phone and have the decision flow straight back into Teams.
What Is an SMS Approval Workflow
An SMS approval workflow is a business process that sends a text message to a designated approver when a request needs a decision, and captures their reply — usually a simple word like "APPROVE," "YES," or "DECLINE" — to automatically continue or stop the process. It typically starts inside a system of record, such as Microsoft Teams, Power Automate, or a finance or HR platform, where a request is created and an approver is assigned.
Instead of waiting for that approver to open an app or check their email, the workflow triggers an SMS through a provider like DataFlows. The approver replies directly from their phone. That reply is captured through a webhook or a "new SMS received" trigger, matched back to the original request, and used to update the record — approved, declined, or escalated. The result is a much shorter gap between "request submitted" and "decision made," without requiring the approver to be at a desk or logged into Teams.
Why It Matters for Australian Businesses
Australian teams are spread across time zones, worksites, and increasingly hybrid arrangements. A finance manager might be at a client site, a construction supervisor might be on a job with no reliable Wi-Fi, and a regional franchise owner might be driving between locations. Email and Teams notifications assume the approver is at a screen with notifications on. SMS assumes nothing more than a phone signal.
There's also a cost side to slow approvals. A stalled purchase order can delay a supplier payment past terms. A delayed leave approval creates rostering headaches. A missed expense sign-off pushes reimbursement into the next pay cycle, which is a poor experience for staff. None of these are large one-off failures — they're small frictions that add up across a business, and they compound faster in industries that run lean approval chains, like trades, healthcare, retail, and property management.
SMS approval workflows don't replace Teams or Power Automate — they extend them. The request, the audit trail, and the record still live inside your existing systems. SMS is simply the fastest way to get a human decision back into that system when the approver isn't in front of a screen.
Key Benefits
Faster decisions. SMS messages are typically read within minutes, compared to hours for email or app notifications, which shortens the time between request and outcome.
No app required for the approver. Anyone with a mobile number can approve or decline, even if they don't have Teams installed on their phone or aren't logged in.
Fewer bottlenecks during travel or fieldwork. Approvers on job sites, in client meetings, or travelling can still respond without needing Wi-Fi or a laptop.
A clear, timestamped audit trail. Every SMS sent and every reply received can be logged against the original request, which is useful for compliance and dispute resolution.
Works alongside your existing tools. The request still originates in Teams or Power Automate — SMS only fills the gap when a decision is time-sensitive.
Reduces "approval chasing." Instead of a manager sending a follow-up chat message to nudge someone, the SMS acts as the reminder itself.
Step-by-Step: Building an SMS Approval Workflow
Here's a practical way to put this together using Microsoft Teams, Power Automate, and DataFlows.
1. Start with the request in Teams. Most approval workflows begin with a form, a Teams Approvals app request, or a Power Automate flow triggered by an event — a new purchase order, a submitted timesheet, a leave request, or a flagged expense.
2. Trigger an SMS when a decision is needed. Connect your Power Automate flow to DataFlows using the Power Automate integration. When a request reaches the "pending approval" stage, add a step that sends an SMS to the assigned approver's mobile number, summarising the request in plain language — for example: "Purchase order #4021 for $2,340 from ABC Supplies needs your approval. Reply YES to approve or NO to decline."
3. Capture the approver's reply. DataFlows supports two-way SMS, so replies come back to your account rather than disappearing. Use a "new SMS received" trigger (available through the Zapier integration, or via webhook for custom builds) to catch the incoming reply as soon as it arrives.
4. Match the reply to the original request. Include a reference number in the outbound SMS and ask the approver to keep it in their reply, or track the conversation by the approver's phone number if only one request is open for them at a time. This keeps the workflow accurate even if multiple approvals are in flight.
5. Update the record and notify the requester. Once the reply is parsed as an approval or a decline, update the Teams Approvals status or the underlying record via Power Automate, and send a short confirmation SMS back to both the approver and the requester so everyone knows the outcome without needing to check Teams.
6. Add an escalation path. If no reply comes back within a set window — say, two hours for urgent requests — trigger a second SMS to a backup approver. This prevents a single unavailable person from stalling the entire process.
How DataFlows Helps
DataFlows gives you the SMS layer this workflow depends on, without you needing to build phone number management, delivery tracking, or message logging from scratch.
The Microsoft Teams integration lets you send SMS notifications directly from Teams workflows, so approval requests and status updates can move between Teams and SMS without manual steps. If your approval process runs through Power Automate — which is common for purchase orders, leave requests, and expense sign-offs — the Power Automate integration connects DataFlows' Send SMS and New SMS Received actions to your existing flows, so you can build the trigger-and-reply logic described above using the same low-code tools your team already knows.
For teams that prefer to build the reply-matching logic in Zapier, DataFlows' New SMS Received trigger and Send SMS action work the same way, letting you route incoming approval replies to whichever system holds the record — a spreadsheet, a CRM, or a custom app.
Every message sent through DataFlows is logged with delivery status, so you can confirm an approval SMS actually reached the approver's phone rather than just assuming it did. That matters when a decision needs to hold up later — for finance sign-offs, for HR requests, or for anything with a compliance requirement attached.
If you're building a custom integration rather than using Power Automate or Zapier, your development team can generate an API token from the Developer section of the DataFlows dashboard and call the SMS API directly to send and receive approval messages.
To get started, sign up at dataflows.com.au and connect the Microsoft Teams or Power Automate integration from your dashboard.
Best Practices
Keep the SMS short and specific. State what needs approving, the key figure or detail, and the exact reply expected — "Reply YES or NO" is clearer than an open-ended question.
Use a consistent reply format. Standardise on simple keywords like YES/NO or APPROVE/DECLINE so your automation can parse replies reliably, and handle common variations like lowercase or extra punctuation.
Set a timeout and an escalation path. Don't let a request wait indefinitely for one person — build in a backup approver for time-sensitive decisions.
Confirm the outcome by SMS. A short "Approved — thanks" message closes the loop and reduces follow-up questions from the requester.
Only use SMS for genuinely time-sensitive approvals. Reserve it for requests where speed matters — routine, low-priority approvals can stay inside Teams to avoid message fatigue.
Log every message and reply. Keep a record of what was sent, when, and how the approver responded, particularly for financial or compliance-sensitive decisions.
Register a recognisable sender ID. Approvers are more likely to trust and respond quickly to a message from a sender ID they recognise as your business.
Conclusion
Approval delays are rarely about people being unwilling to decide — they're usually about the request not reaching them at the right moment. Adding SMS to your Microsoft Teams and Power Automate approval workflows closes that gap, giving approvers a fast, simple way to respond from anywhere, while keeping the request, the record, and the audit trail exactly where they already live.
If approvals are piling up in your business because the right person didn't see a notification in time, it's worth adding an SMS step to the process. Sign up at dataflows.com.au and connect the Microsoft Teams or Power Automate integration to start sending approval requests over SMS today.
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