#PowerPlatformTip 21 – ‘Use Triggeroutput’

💡 Challenge

By default, flows don’t inform the user of success, details, or errors. How can you notify the flow initiator and handle potential errors within your flow?

✅ Solution

Use the triggerOutputs() expression in trigger conditions to extract header information, send notifications to the flow starter, and manage errors.

🔧 How It’s Done

Here’s how to do it:

1. Add a trigger condition to capture the user’s email.
   🔸 Use the expression:
   text triggerOutputs()?[‘headers’]?[‘x-ms-user-email’]

2. Include additional header information as needed.
   🔸 Use the expression:
   text triggerOutputs()?[‘headers’]

3. Configure subsequent actions (e.g., send an email) using these outputs.

🎉 Result

The flow now notifies the flow initiator upon success with relevant header information and handles errors gracefully using trigger conditions.

🌟 Key Advantages

🔸 Provides real-time notifications to the flow initiator.
🔸 Extracts header data easily with built-in expressions.

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🛠️ FAQ

1. Does triggerOutputs() work with all trigger types?
Most trigger types support triggerOutputs(), but the available data varies. Manual triggers and HTTP requests typically provide the most header information.

2. What other header information can I extract besides user email?
You can access user agent, IP address, authorization tokens, and custom headers depending on the trigger type and source.

3. How do I handle cases where the user email is not available?
Use conditional logic or the Coalesce function to provide fallback values when header information is missing or null.

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