Your list. Your publishing controls.
Manage the audience.
Understand each outcome.
Set up the list, message and delivery options for the work you intend to run.
Keep the final message short
The complete outgoing SMS is limited to 70 UTF-16 units, including any unsubscribe URL. Some characters, including emoji, use more than one unit. The preview shows the exact shortened text. This workflow does not send multipart SMS, MMS or attachments.
Configure opt-out links deliberately
Unsubscribe is optional and off by default. It needs the configured public HTTPS address and enough space in the message. A confirmed opt-out suppresses the recipient for that channel, and a later import does not reactivate it.
Read provider results accurately
Delivery status can distinguish accepted, delivered, failed, uncertain, pending and suppressed recipients. Where an attempt is uncertain, the system reconciles provider evidence instead of blindly sending it again. A scheduled publication is not a delivery guarantee.
Connect replies as a separate workflow
Inbound SMS support requires a separately active Support channel with a receiving number. That configuration can route incoming messages into Tickets. Creating an outbound SMS list does not enable support intake by itself.