How to Require an Explanation for a No Answer in Microsoft Forms
Question details
The user wants to force respondents to provide a text explanation specifically when they select No to a Yes-or-No question in a survey.

- Product
- Microsoft Forms
- Device & OS
- not provided
- Scenario
- Creating a survey or questionnaire where negative responses require mandatory justification from the respondent.
- Observed behavior
- Microsoft Forms lacks a native feature to make a text field conditionally required on the same page based on a specific multiple-choice selection.
Ensure you have access to Microsoft Forms and optionally Microsoft Power Apps if you plan to build a fully customized and automated solution for strict conditional formatting.
Use Branching Logic in Microsoft Forms
While not a perfect on-page restriction, you can direct users who select No to a required text question on a new section.
Because Microsoft Forms does not support dynamic field visibility on a single page, branching is the best built-in workaround. This method routes users down different paths based on their selection.
Add a multiple-choice question to your form with 'Yes' and 'No' as the options.
Directly below the Yes/No question, add a new 'Text' question (e.g., 'Please explain why'). Toggle on the 'Required' switch for this text question.
Click on your initial Yes/No question, click the three-dot (More settings) menu in the bottom right corner of the question box, and select 'Add branching'.
Next to the 'Yes' option, change the drop-down to skip to the end of the form or the next relevant section (bypassing the text question). Next to the 'No' option, set it to go directly to the 'Please explain why' text question.

Build a Custom Form with Microsoft Power Apps
For strict enforcement where the text box appears instantly and is mandatory only upon selecting No, Power Apps provides full customization.
Discover WPS Office for Seamless Document and Data Management
While building complex automated forms might require specialized enterprise tools, for all your daily survey data analysis, document drafting, and presentation needs, WPS Office offers a free, lightweight, and highly compatible alternative to Microsoft Office.
- 1. Download the installer: Visit the official WPS Office website and download the free installation package for your operating system.
- 2. Install WPS Office: Run the installer and follow the on-screen instructions to set up the software.
- 3. Open your files: Launch WPS Office and directly open your existing Word, Excel, and PowerPoint files with full format compatibility.

Frequently Asked Questions
Can I make a question conditionally required natively in Microsoft Forms?
No, Microsoft Forms does not currently support making a field required based on the answer to a previous question on the same page. You must use branching logic to redirect users to a required question instead.
Does branching logic prevent Yes answers from seeing the explanation box?
Yes, by setting the branching for Yes to skip the explanation question and jump to the next section or the end of the form, respondents who select Yes will bypass the text field entirely.
Why should I use Power Apps instead of Microsoft Forms?
Microsoft Power Apps allows for dynamic visibility and complex validation rules, such as showing and instantly requiring a text field on the exact same screen when a specific dropdown or radio button option is selected.
Is there an extra cost to use Microsoft Power Apps?
Power Apps generally requires a qualifying Microsoft 365 enterprise plan or a standalone Power Apps license, whereas Microsoft Forms is included in most basic and free Microsoft 365 accounts.




