How to Use Power Automate Triggers: Automated, Scheduled, and Instant

Introduction

Every Power Automate flow starts with a trigger. A trigger tells the flow when it should begin running. Choosing the correct trigger helps ensure your automation runs at the right time and for the right reason.

Power Automate provides three main types of triggers:

🤖 Automated Trigger
⏰ Scheduled Trigger
👆 Instant Trigger

Let's explore each trigger with real-world examples.

1. Automated Trigger

An Automated Trigger starts a flow automatically when a specific event occurs. No user action is required.

Example 1: New Email Notification

Trigger

When a new email arrives (Outlook)

Flow

New Email Received
        ↓
Check Subject
        ↓
Save Attachment to SharePoint
        ↓
Send Teams Notification

Whenever an email with an attachment arrives, the flow automatically saves the attachment and notifies your team.

Example 2: SharePoint List

Trigger

When an item is created

Flow

New Employee Added
        ↓
Create Microsoft 365 Account
        ↓
Send Welcome Email
        ↓
Notify HR Team

No manual work is required after adding a new employee.

Best For

Email automation
Approval workflows
Document processing
Real-time notifications

2. Scheduled Trigger

A Scheduled Trigger runs the flow at a specific date, time, or recurring interval.

Example 1: Daily Report

Trigger

Every day at 8:00 AM

Flow

8:00 AM
     ↓
Collect Sales Data
     ↓
Create Excel Report
     ↓
Send Email to Manager

The report is generated automatically every morning.

Example 2: Weekly Reminder

Trigger

Every Monday at 9:00 AM

Flow

Monday 9 AM
      ↓
Check Pending Tasks
      ↓
Send Reminder Email

Employees receive a reminder every Monday.

Best For

Daily reports
Weekly reminders
Database backups
Data synchronization
Monthly maintenance

3. Instant Trigger

An Instant Trigger starts only when a user manually runs the flow.

Example 1: Power Apps Button

Trigger

Button clicked in Power Apps

Flow

User Clicks Button
        ↓
Generate PDF
        ↓
Save to SharePoint
        ↓
Email PDF

The flow runs only when the user clicks the button.

Example 2: SharePoint Selected Item

Trigger

For a selected item

Flow

Select Document
        ↓
Click "Request Approval"
        ↓
Start Approval
        ↓
Notify Approver

Users can start the approval only for the selected document.

Best For

User-requested approvals
Export reports
Generate invoices
Send notifications
On-demand processes

Comparison with Examples

Trigger Type	Starts When	Example	Best For
Automated	An event occurs	New SharePoint item → Send approval email	Real-time automation
Scheduled	At a fixed time	Every day at 8 AM → Generate sales report	Recurring tasks
Instant	User clicks a button	Power Apps button → Create PDF invoice	On-demand actions

Real-World Business Scenarios

Business Requirement	Trigger Type	Example
Employee submits leave request	Automated	Start approval workflow automatically
Generate daily attendance report	Scheduled	Run every morning at 9 AM
User exports selected SharePoint document	Instant	Click Export button
New invoice received	Automated	Save invoice and notify finance
Weekly backup of files	Scheduled	Every Sunday night
Manager requests employee report	Instant	Click button in Power Apps

When Should You Use Each Trigger?

Use Automated Trigger When:

Something happens automatically.
Immediate action is required.
No user interaction is needed.

Example: A customer submits a Microsoft Form, and an email confirmation is sent instantly.

Use Scheduled Trigger When:

The task repeats regularly.
Reports or backups are required.
Timing is important.

Example: Every Friday at 5 PM, send a weekly sales report to management.

Use Instant Trigger When:

A user decides when to run the flow.
Input is required before execution.
The action is performed only when requested.

Example: A manager clicks a button in Power Apps to generate a PDF employee report.

Summary

Trigger	Description	Example
🤖 Automated	Runs when an event happens	New email → Save attachment
⏰ Scheduled	Runs on a defined schedule	Daily report at 8 AM
👆 Instant	Runs when a user starts it	Button click → Generate PDF

Conclusion

Choosing the right trigger is the foundation of every successful Power Automate flow:

Automated Triggers are ideal for event-driven automation.
Scheduled Triggers are best for recurring and time-based processes.
Instant Triggers are perfect for user-initiated tasks.

By understanding these trigger types and their real-world examples, you can build efficient, reliable, and scalable Power Automate solutions that fit your business needs.