Welcome
Send this as soon as a new customer creates an account. Confirm what they signed up for, point them to the first useful action, and make help easy to find without crowding the message. Replace the starter link, support contact, and product language, then connect the email to your signup or account-created event.
Fons Mans
Stop onboarding when the user activates
Define the activation event before scheduling follow-up. Trigger the welcome email from signup, then stop or branch the remaining sequence when the customer reaches that event. This prevents basic setup tips from arriving after success. Compare the welcome and onboarding examples when deciding where to split the sequence.