Skip to main content
Skip table of contents


Validation can be set up with the help of a dropdown box that you see next to the Hide checkbox. By default, all of your survey questions are optional, and respondents can skip them when filling out your survey. However, it is possible to force respondents to answer a question by changing the setting to mandatory or mandatory on condition.

Next to each question you will find dropdown box that lists the following options:

  • Allow to skip Select this option to make this question optional to answer.

  • Skip with alert This option allows respondent skipping a question but generates a pop-up alert that notifies about skipping the question.

  • Must answer Select this option to make the question mandatory. Respondents will not be able to proceed to other pages or submit your survey until answer the question.

  • Conditional Must Answer Use this option to create a condition upon which current question becomes mandatory. 

If you want to make your respondents answering certain question depending on the answers, they gave to the previous questions use the Qx.Ay format to create a condition, where x is a question number and y is answer choice number within a question.


You wish to make a question mandatory for those respondents who selected answer choice 2 within question 2 and answered open-ended question 3. 

The expression of this condition will look as following: Q2.A2 AND Q3.
Use the following logic operators to create complex conditions:ANDORNOT.

To avoid any unexpected errors while processing and executing the logical condition, it is recommended to reference only the questions that precede the current question. 

  • Mandatory answer options Select this option to make only certain answer choices within a question mandatory to answer.

    You can apply this option to the following question types: Rating Scale, MatrixSingle Line Text.

  • Must answer all fields option is used to make all items within the Matrix type of question mandatory to answer.

JavaScript errors detected

Please note, these errors can depend on your browser setup.

If this problem persists, please contact our support.