#PowerPlatformTip 127: ‘Special User-Informations in PowerApps Studio’

TL;DR: Auto-switch to a test email in Power Apps Studio and the real User().Email in production via StartsWith(Host.Version, "PowerApps-Studio").

💡 Challenge

While developing apps in Power Apps Studio, you often want to use test values, like a test email address, without risking that they end up in production.

✅ Solution

Check whether the app is running in Studio mode. If it is, use a test email for development; in production the app automatically switches to the real user’s email address.

🔧 How It’s Done

Use this formula to detect Studio mode and switch email addresses accordingly:

fxIsStudioMode = StartsWith(Host.Version, "PowerApps-Studio");
fxUserEmail = If(
    fxIsStudioMode,
    "testaccount@company.com",
    User().Email
);

🔸 Place these in the App.OnStart property so the variables are set when the app initializes.

🔸 You get the test email during development and the correct user email in production, with no manual changes.

🎉 Result

No more accidentally shipping apps with hardcoded test emails, the switch is seamless and automatic.

🌟 Key Advantages

🔸 Prevents accidental deployment of test data

🔸 Saves time by automating email assignment

🔸 Enhances app security and consistency

Special thanks to Matthew Devaney for sharing this fantastic Power Apps tip!

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🎥 Video Tutorial

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🛠️ FAQ

1. How do I determine if my app is in Studio Mode? Use the StartsWith function on Host.Version to check for “PowerApps-Studio”.

2. Can I apply this pattern to other test values? Yes, use the same logic to switch between development and production values for any parameter.

3. Where should I place these formulas in my app? Put them in the App.OnStart property so the variables are set when the app initializes.

🔗 Related Tips

• #PowerPlatformTip 126: User Context for Automated Tasks, run tasks in each user’s own context.
• #PowerPlatformTip 73: Quick Switch to Maker Mode, speed up your Studio workflow.