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How to Fix an Invalid Microsoft Forms ID in Power Automate

Maira Mehtab Sep 22, 2026 869 views

Question details

The user needs to resolve an issue where a Power Automate flow fails to recognize a valid Microsoft Form ID.

Product: Microsoft Power Automate
Device & OS: not provided
Scenario: Triggering an automated email to a specific group after a Microsoft Forms response is submitted.
Observed behavior: The flow cannot find a valid Form ID and displays only 'ID', which prevents the automation from executing properly.

Before you start

Ensure you are logged into Power Automate with the exact same Microsoft account that originally created or has edit permissions for the Microsoft Form.

Solution 1Recommended

Verify Configuration and Seek Power Platform Community Support

Since this is a specific Microsoft Power Automate configuration issue, verifying account ownership and seeking help from specialists is the most effective approach.

The 'Invalid Form ID' error typically occurs when there is an authentication mismatch between the account used for the connector and the account that owns the form. In some cases, the form may simply need to be re-selected from the dropdown menu.

Because this involves complex automation configurations, reaching out to the Microsoft Power Platform Community is highly recommended to receive tailored assistance.

Verify Account Ownership

Check that the Microsoft account signed into your Power Automate connector is the original creator or has explicit edit permissions for the target Microsoft Form.

Re-select the Form in the Trigger

In your Power Automate flow edit screen, click the 'X' next to the current Form ID in the trigger step, and try selecting the form again from the dropdown menu.

Gather Debugging Information

Take screenshots of your flow trigger, form type, and connector settings. Be sure to blur or remove any sensitive personal information before sharing.

Post to the Community Forums

Visit the Microsoft Power Platform Community and post your question along with your screenshots so Power Automate specialists can diagnose the exact connector issue.

Using Group Forms: If the form belongs to a Microsoft 365 Group, it might not appear in the standard dropdown. You may need to click 'Enter custom value' and paste the Form ID directly from the form's web URL.

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Frequently Asked Questions

Why does Power Automate say my Microsoft Form ID is invalid?

This usually happens if the form was deleted, moved to a group, or if the account signed into the Power Automate connector doesn't have the necessary permissions to access that specific form.

How do I manually find the correct Form ID in Microsoft Forms?

Open your Microsoft Form in a web browser. The Form ID is the long string of characters in the address bar URL that appears right after 'FormId='.

Can I use a Group Form in my Power Automate flow?

Yes, but Group Forms often do not appear in the default dropdown menu in Power Automate. You will likely need to select 'Enter custom value' in the trigger and manually paste the Group Form ID.

What should I do if re-selecting the form doesn't fix the error?

Try deleting the Microsoft Forms trigger from your flow entirely. Re-add the trigger from the menu and sign in to the connector again to refresh your authentication tokens.

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