I'd like to change the send time for future emails in an active nurture stream.
When I open up the dialog box to switch the time, it requires that i change the time of the "first cast" to a current date.
If i change that date to today, will that affect the members that have already gone through 2 out of 3 of the emails in that stream?
I've never done this myself before. However, I don't think it should. Typically it decides who get's the email based on who was sent the email previously. If you aren't changing the name of the email I would think that the date/send time should not affect this concern.
Yes it will : it will create a cast for today, meaning that if a lead has already received 2 emails, he/she will receive the 3rd one today.
The recommendation here is to set the new start date as close as possible to what would have been the next cast anyway.