First View Hour
The First View Hour field, related to Send time optimization, stores the first email viewed hour information. It is calculated based on all the email communications sent on a particular day.
This field is further used to calculate the best hour to send future email
communications across all days. The calculation is based on the most frequent email
opened hour of past email interactions. The data is stored in the
UARE_RECIPIENT_HOUR
view of the concerned channel.
You can use UARE_RECIPIENT_HOUR.FIRST_VIEW_HR
information to send
email communications for future Campaigns.