Making a question required in a survey
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Make a question required to ensure that your survey collects complete information.
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In the header of Dev Studio, click .
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Click the name of a survey, and then click the question that requires an answer.
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In the Question settings section, select the Required check box.
This option is not available for multi-answer questions, however, you can make a multi-answer question required by performing validation on the answers that the user provides at run time.
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Click Save survey.
- Validating answers in a survey
Display an error message in your survey when an answer is invalid, to ensure that the information that users provide is accurate and in an expected format.