Advanced Settings - Visibility Limits
Visibility limits allow you to define if and how many times a single user will see your survey.
Display every time
This is the most basic setup. User will see the survey every time it's triggered, either by the Click Trigger or On Page Load.
This setting is particularly usefull for surveys that are used to gather generic feedback from the user. Combines well with survey types like FAB or Context surveys.
Once per session
With this setting, the survey will be displayed to the user only once, until they close their browser. It will be displayed again, when they start a new session (open the browser again) and trigger the survey.
Once per user
With this setting, the survey will be displayed to the user only once. It will not be displayed even when the user will start a new session or will visit the page later.
Side note: ProductSurveys does not track users across devices. So "once per user" in fact means "once per device" or "once per browser".
Multiple answers per user
By default, user can fill the survey just one time. After submitting the survey, they will not see
it again.
Check User can fill the survey multiple times in the Settings
Form, to allow users to fill the same survey multiple times.