• Campaign Start: The email campaign begins at the selected start time.
• 24-Hour Execution: Email campaigns run over 24 hours by default. You can set an end time, but it must be at least 4 hours after the start time.

Sending Options for Unpredictable Base:
Send at Best Time: Emails are sent at the highest engaging hour derived from the engagement dashboard.
Send at Custom Time: Emails are sent at a user-selected time within the 24-hour window.
Send at End Time: Emails are sent at the campaign's end time, either user-defined or after 24 hours by default.
Attribute Creation

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Note

Following are the two new user attributes are created on the All Contacts page when STO is enabled:

• EMAIL_PH_WEEK: Preferred hour for weekdays.
• EMAIL_PH_WEEKEND: Preferred hour for weekends.
• Values range from 0 (12 AM) to 23 (11 PM), with NULL indicating no data.

Control Group

A control group can be added to your STO campaign by enabling the control group toggle in the Schedule section.

• Choose the percentage of your audience for the control group.
• The default control group time is one hour from the campaign start time but can be adjusted within the 24-hour window.
• Control group users, selected from those with assigned preferred hours, receive emails at a specified time for comparison against the STO group.

Campaign Listing

Follow the steps given below to view STO campaign results.

1. Log in to the Netcore CE dashboard.
2. Navigate to Engage > Campaigns. Campaigns labeled with STO are Send Time Optimization campaigns.

Criteria for Enabling STO

To activate STO on your Netcore CE dashboard, the following criteria must be met:

• At least 10 broadcast campaigns in the last 3 months.
• Overall, the open rates of those campaigns were greater than 5%.
• Minimum user count on the Netcore CE dashboard greater than 10,000.
  By leveraging STO, you can significantly enhance the effectiveness of your email communication, ensuring that each message reaches users at their most receptive times.

Send Time Optimization is one of CEE's many Machine Learning Capabilities. With it, you can personalize communication time for every user based on their engagement behavior with your brand.

Raman (Netcore ML Engine) considers the user's past engagement behavior of interacting with the emails
to predict and assign a preferred hour for each user fulfilling the eligibility criteria; the rest of the users will be grouped under an unpredictable base.
So, in every STO, Raman will send the communication to all users at their preferred time, which will, in turn, lead to better open rates. These campaigns will be executed within 24 hours of the selected start time.
The unpredictable base is sent a communication at the 23rd hour of the entire 24-hour cycle, essentially towards the end of the campaign. This group consists mostly of inactive users.

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Note

STO only works on regular email campaigns.
To enable this feature, please contact [email protected]
The Send Time Optimisation algorithm training duration is 24 hrs (max)

• Predictable count is the count of users for whom preferred hour has been predicted by the STO model.
• Control Group users will receive the email according to the default date and time, whereas unpredictable users will receive it at the 23rd hour of the 24-hour cycle from the start time.
• End time will be automatically calculated 24 hours from start time.

Campaign Listing
The STO output will be visible under Engage> Campaigns section.