Finding yourself in a situation that you need to switch to a new ESP is not uncommon for marketers. The way you and your new Email Service Provider approach onboarding will impact your entire sending program. So make sure to plan and execute the migration process right.
Choosing an email marketing vendor might seem like a daunting task. Products and roadmaps among well-established ESPs might start to look pretty much similar, because vendors like to blur the lines to come out full-featured. In an extreme case, you will find yourself ending up making a choice based predominantly on price. Wrong.