✅ What Is a Trigger Condition?

A trigger condition controls when a Power Automate flow should start.
It prevents the flow from running unless the condition is true.

Trigger conditions are written in Power Automate expression language (same as in “Expressions”).

✅ Where Do I Add a Trigger Condition?

  1. Open your flow

  2. Click on the trigger (e.g., When an item is created or modified)

  3. Click the three dots (…) → Settings

  4. Scroll to Trigger Conditions

  5. Paste your expression

  6. Save

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🧩 Basic Syntax

Trigger conditions use this format: 

@{ <expression> }

Example

@equals(triggerBody()?['Status'], 'Approved')

📌 Common Useful Trigger Condition Examples

1️⃣ Run only when a field equals a value

Example: Run only when Status = "Approved": 

@equals(triggerBody()?['Status'], 'Approved')

2️⃣Run only when an item is modified (not created)

SharePoint list items have a version number: created = 1.0, modified = 2.0+ 

@not(equals(triggerBody()?['{VersionNumber}'], '1.0'))

3️⃣Run only when a Yes/No field is true 

@equals(triggerBody()?['IsActive'], true)

4️⃣Run only when a column is NOT empty 

@not(empty(triggerBody()?['Email']))

5️⃣Run only when a column IS empty 

@empty(triggerBody()?['Email'])

6️⃣Run only when a number is greater than X 

@greater(triggerBody()?['Amount'], 1000)

7️⃣Run only for a specific person in a Person field 

@equals(triggerBody()?['Owner']?['Email'], '[email protected]')

💡 Why Trigger Conditions Are Better Than “Condition” Actions

Without trigger condition:

With trigger condition: