In the Event Dashboard, click on the "Content" option from the sidebar. 

Select the “Engage” page. This will list all the engagement items, including draft surveys.

Find the draft survey you want to publish, and click on the “Publish” button on the survey card.

On the confirmation pop-up, click “yes” to publish the survey.

Note: You can also click on schedule publish and choose the date and time and it will be automatically published at that time without manual update.

How to publish a survey?