Messaging
Can HighLevel send SMS messages?
What HighLevel supports
SMS can be sent from conversations, contact actions and workflows after a supported number and phone service are configured. Charges, available number types and registration vary by country.
Turn this part of the decision into a written acceptance test for “Can HighLevel send SMS messages?”. Record the baseline, expected change, named owner and evidence required to approve it. The test should cover consent, sender identity, deliverability, billable usage, replies, opt-outs and human handoff. Use representative records and normal operating volume, not an ideal demonstration account. Record assumptions separately from verified behaviour so a pricing or product change can be reviewed without rewriting the conclusion.

Permission comes before automation
Permission comes before automation. Record the exact opt-in source, purpose and time, identify the sender and provide a working opt-out. Buying a list, inheriting consent from an unrelated form or hiding terms behind a generic privacy link creates commercial and compliance risk that software cannot remove.
Test the recommendation with a normal case, a high-volume case and one failure case. For this question, the review should include consent, sender identity, deliverability, billable usage, replies, opt-outs and human handoff. Assign every exception to a person, define the response time and preserve a safe manual route. Capture the actual time, cost and outcome. If the process succeeds only with builder intervention or perfect data, it is not ready for wider deployment.
Understand delivery and cost
Budget by billable segments, not visible messages. Long content, special characters, replies, retries, number rental, carrier registration and country-specific fees can change total cost. Use current wallet rates and test the actual copy, because encoding may split one message into several charged segments.
Build a safe first workflow
Start with one transactional or high-intent workflow such as appointment confirmation or prompt follow-up to an explicit enquiry. Define quiet hours, frequency limits, duplicate suppression, human handoff and what happens after an opt-out. Test delivery and replies on real devices and carriers before a bulk send.
Monitor the right metrics
Monitor delivery failures, reply rate, opt-outs, complaints, cost per completed outcome and response time. A high delivery count is not a business result. Investigate sudden carrier errors or opt-outs by workflow, source and message version before increasing volume.
When SMS is the wrong channel
Use email, an in-app message or a call when the content is long, sensitive, non-urgent or poorly suited to a small screen. SMS works best for concise, expected and time-relevant communication. If the recipient would be surprised to receive the message, the workflow is not ready.
How to verify this answer
What we checked
The answer is checked against the primary sources listed below and distinguishes published product facts from our operational judgement.
What can vary
Availability, limits, usage charges and interface details can vary by plan, country, account configuration and release date.
What to test yourself
Reproduce the recommendation with one representative workflow and your own data before changing a live system or buying annually.
Sources checked
Product capabilities and prices can change. These primary sources were checked for this analysis.
GHLFAQ