Are you changing from one Email Service Provider to another? Before you disconnect your current ESP Integration, make sure you set up your new ESP Integration. This will ensure any subscribers who sign up while you make the switch are sent to your new ESP.
Setting up your new ESP Integration means both integrating Grow and your ESP and assigning Form Actions to all your conversion features so Grow correctly passes subscribers.
The following articles can help you set up your new ESP:
Flodesk
ConvertKit
Mailchimp
MailerLite
Once you’ve set up your new ESP Integration and added your Form Actions, you should be all set to disconnect your previous ESP!