Pop-up cookies' lifetime
In the Settings panel of the block, specify the time (in days) the cookies should last to avoid showing the same pop-ups to the same person multiple times.
If you want the pop-up message to appear once per 10 days, enter "10." If you enter "365," the pop-up will be shown to the visitor once a year. Leave the field blank if you want the pop-up to appear each time someone visits the page.