Sending Logic - Sending in Waves

You could do it would 2 smart campaigns:

1. Smart campaign that adds people to a list using random sample.
   • Create number of lists for number of weeks you want to send
   • In flow of campaign use an add to list flow step and add choices, use the random sample option and correspond that to the number of lists you have. ie. if you want it to go out over 5 weeks create 5 lists and do Random Sample is 20 for each of the choices in the add to list flow.
2. Send campaign use the following flow structure:
   • If member of list 1 send email
   • Wait 1 week
   • If memebr of list 2 send email
   • Wait 1 week

and so on you could also add remove from flow steps for those that were sent the email.

You can create different -2 smart list and further use in Flow section with choice and wait.

Ex.. if member of smart list 1 - send email -> wait 1 week -> if member of smart list 2 - send email ->wait 1 week and so on..