sms

Use a 3-message flow: Send 1 at 30 minutes after abandonment with a gentle reminder and no discount, Send 2 at 4 hours with soft urgency, and Send 3 at 24 hours with a discount if margins allow. Each message needs a sender ID, one CTA with a short link, and a STOP opt-out footer on the first send.

Klaviyo SMS is the default pick if you already use Klaviyo for email, since it shares one subscriber profile. Postscript offers deeper Shopify-specific SMS features, while Attentive suits mid-market brands wanting full-service support.

No. TCPA requires express written consent for marketing SMS, captured with clear disclosure language, frequency expectations, and STOP/HELP instructions. Checkout phone capture only covers transactional messages like order updates related to that specific purchase.

A2P 10DLC registration is required since 2022 for US businesses sending SMS through 10-digit long codes. Without it, carriers throttle or filter your messages. Registration covers brand verification, campaign use case, and sample messages through The Campaign Registry.

Emojis force UCS-2 encoding, which cuts the segment size from 160 GSM-7 characters to 70 characters. A message that would be one segment becomes two, doubling the per-send cost. Limit usage to one emoji per message and preview segment counts before sending.

Healthy opt-out rates are under 2% per send overall and under 0.5% for promotional sends. Rates above that signal audience fatigue, usually from over-sending or unsegmented blasts, and require reducing frequency and segmenting by engagement.