Campaigns
Know who will actually receive it

Before you launch, the wizard can show who is eligible and who will be skipped — and why — instead of discovering that after the send.
An eligibility preview lists who is in and who is held back
Skip reasons stay attached to the recipient, so a reopen still reads honestly
Failed only means the sender could not start; a finished attempt reads as Sent
Email campaigns keep click and delivery attribution without depending on custom webhook args