I'm looking for some clarity on how often opt-in interest groups are updated. New email signups from yesterday and the day before were not appearing in the appropriate interest group this morning until I clicked ‘Refresh Summary.’ We have an email going out later today using this group as the audience. Will the group auto-refresh just before delivery? We had a social media call to sign up for this email and we want to make sure we catch everyone who signs up before the email delivers.