Translations:Survey quotas/7/en
From LimeSurvey Manual
You set a quota on this survey that contains a restriction of 20 users who have answered "Yes" to this question. The quota will be checked everytime somebody answers "Yes" to that question, and completes the whole survey. If the person answers the quota question but doesn't complete the survey, that answer-id is not going to be counted towards the quota. Once 20 people have done so, the quota action will be triggered by anyone else choosing "Yes".