Email-only flows recover 5–8% on average; SMS adds another 4–10%; voice agents recover 18–32% of contacted abandoners.
Recovery rate is a function of speed (first touch within 30 minutes recovers 7× better than 24-hour delays), channel (voice > SMS > email for high-AOV), and language (native > translated).
Multi-touch flows compound. Voice + SMS + email running together typically recover 25–40% of all abandoned carts, vs 5–8% for email alone.