Lookup table question is a combination of a drop-down list and a single-line editable textbox, allowing respondents to either type in directly or choose from a list of existing options.
Lookup table question comes with autocomplete or auto suggest feature for the respondent to enter their answers in a convenient way. This is especially useful when there are numerous answer options. Respondent can start typing their answer and only matching options are suggested.
Validation: By default, validation option is turned off. Respondents can skip and move ahead in the survey without answering the question. You can enable validation if you don't want to allow respondents to skip this question. By enabling validation option you can see a drop-down with options - force response and request response.
Force response option makes a question mandatory/required, as shown in the above image. The respondents cannot finish survey without answering a mandatory question.
When you select request response, the respondent gets a pop-up in case a question is not answered, requesting to answer the question or continue survey without answering.
Custom validation messages: You can now set a customized validation message as well.
In the above image, the question is select the state in which the respondent resides. If the respondent resides in New Hampshire state, then he/she needs to start entering the text in the text box. The drop-down will suggest the matching options from the list. The respondent needs to click on the appropriate option which is New Hampshire in this case.
To view the report for matrix multi-select question:
This feature is available with the following licenses :