When you set up a survey campaign with the Timewarp delivery option, the timing of reminder surveys may differ from the standard schedule.
Here’s a detailed explanation based on a real-life example, when the Reminder survey is scheduled to be sent 2 days after the main survey, and the Timewarp option is selected in the campaign's Schedule.
Example Timeline
July 29, 8:00 pm - The initial survey was sent to the contact.
July 30, 8:00 pm - Day 1 after the survey was sent.
July 31, 8:00 pm - Day 2 after the survey was sent. According to the schedule, this is when the reminder survey should have been sent. However, the campaign's Schedule had the "Timewarp delivery" option selected.
Timewarp Delivery Option
The Timewarp delivery option tries to identify the best time to send the survey based on the contact's location and other data points. If the system can't determine the optimal time, it defaults to a delivery window between 10:30 am and 5:30 pm in your account's time zone.
Actual Reminder Survey Delivery
August 1, 10:30 am - Since the system couldn't identify the best time to send the reminder survey, it defaulted to the earliest time in the specified range. Therefore, the reminder survey was eligible to be sent out starting at 10:30 am New York time.
Possible Delay - Depending on system load, there might be a delay of up to 1 hour.
Summary
In this example, the initial survey was sent on July 29 at 8:00 pm. The reminder survey, ideally scheduled for July 31 at 8:00 pm, was instead set to be sent on August 1 at 10:30 am due to the Timewarp delivery settings. Always check your campaign settings and account time zone to anticipate when reminders will be sent.