This feature is on pilot release but is currently full and not accepting any more applications.
To enable Sent Time Optimization, contact Emarsys Support. Once enabled, you will find this feature on the Scheduling page of the eligible email campaigns.
As Send Time Optimization needs past contact behavior data to determine the optimal sending times, we do not recommend using STO until you have at least 1 month of email campaign history. If you turn STO on too early, it will distribute contacts randomly among the child launches and this can actually result in a decline in responses.
Before you start
Send Time Optimization works under the following conditions:
- This feature can currently only be enabled for ad hoc email campaigns. It cannot be used if the Advanced Scheduling options are used.
- The time it takes for STO to calculate the best sending times may range from a few minutes to two hours. The actual calculation delay depends on the size of your database as well as the complexity of the contact segment and the launch list.
When your email campaign is ready to launch, activate Send Time Optimization on the Scheduling page. You then have two options:
- Launch now - Emarsys will immediately create a control group comprising 10% of the launch list, and then calculate the optimal sending times for the remaining contacts. Once the calculations are finished, the campaign will be launched to the control group and the first STO launch will take place on the next even hour. The remaining contacts will be divided into 11 further launches every two hours.
- Launch at - Emarsys will launch the campaign to the control group at the time you specify in the scheduling. The 12 STO launches will be spread evenll throughout the calendar day and will start at 00:00 am.
When you schedule a launch, the earliest available option offered in the date picker is the following day. You cannot schedule a launch for later in the current day.