The email system's record of each send attempt, one email_delivery row apiece. A caller that must not proceed until a customer was actually emailed (the recurring fee charge waits on its invoice) reads it by event id.
email_delivery
Static
The process default: built from each dependency's own instance().
instance()
Recorded as null when no customer has this id.
A send held by another attempt is retried, never recorded.
The invoice terms version that was rendered; null for other emails.
The email system's record of each send attempt, one
email_deliveryrow apiece. A caller that must not proceed until a customer was actually emailed (the recurring fee charge waits on its invoice) reads it by event id.