Hey Andy,

In this case, you can use a wait until action in the campaign with the condition that the timestamp attribute is a timestamp after a relative date of 0 days from now before they move on to the next message action step in your campaign. 

I’ve linked our help documentation for you below for your easy reference:

• Wait Until action
• Timestamp conditions

Hope this helps! 

Hi Penny,

thanks for your response :)

if not only the day is important to me, but also the hour? for example, I want to send a reminder an hour before the start of the webinar. I have the start time in the timestamp attribute. Can I count down 1 hour somehow?

Hey Alex,

It is not quite possible to do that exactly using the timestamp conditions but as a workaround you could

use the following conditions for the Wait Until Action:

Which puts a person in waiting till exactly 24 hours before the timestamp attribute. 

Next, add a time delay of 23 hours before you send the 1 hour prior to webinar reminder email. ;)