Problem
You want to make sure your respondents submit properly formatted responses to your questions in the Google Form.
Environment
- Google Forms editor
Solution
- Go to the question where you want to set up a rule.
- Click the vertical ellipses icon (3 dots aligned vertically), then select Response validation.
- Choose the type of rule you want.
- (Optional) You can enter a custom message when they break the rule in the Custom error text field.
- Turn on Required.
Cause
The default setting will allow respondents to type in any answer in your Google Form.