SMS is a critical part of your business strategy and it’s important to follow all the rules to ensure your messages are delivered. The FCC and carriers have strict guidelines for the types of messages that can be sent to their customers, and they block messages that don’t follow them.
![]()
HubSpot SMS marketing software. Every text logged to the contact record.
Message IQ runs inside HubSpot, not next to it. Workflows trigger the send, replies land in the timeline, and your team never leaves the CRM.
98%open rate45%reply rate$45–50return per $1 spentBook My Free Strategy Call
- Free 15-minute strategy call, live demo inside your CRM
- 300+ SMS templates, instant download
- No pitch, no pressure
Plans from $49/mo. Setup and 10DLC registration handled for you.
Here are some key considerations for carrier SMS compliance
Consent and Opt-In: Before sending SMS messages to customers, it is crucial to obtain their consent and provide clear opt-in mechanisms. Consent should be freely given, informed, and specific to the type of SMS communication (EX: marketing or informational). Businesses should maintain records of consent to demonstrate compliance if required. Keep in mind that the consent only applies to you and does not apply to subsidiaries or other related brands or companies.
If a customer initiates contact with you, consent has been given to reply within that conversation. Separate conversations will require consent.
If you are sending messages to a recipient on an ongoing basis (EX: daily weather updates), you must include language that instructs the recipient on how to opt out as well as proactively request that your recipients reconfirm their consent periodically.
Example Opt In Message: “[Company] would like to text you appointment updates. To consent, please reply YES.”
Example Opt Out Message: “To unsubscribe, reply STOP”
Message Content: SMS messages must comply with carrier guidelines regarding content, including avoiding offensive, misleading, or deceptive language. Additionally, messages should provide clear identification of the sender and a valid contact method for recipients to opt-out of further communications.
Frequency and Timing: Bombarding customers with excessive SMS messages can lead to dissatisfaction and unsubscribes. Businesses should establish reasonable frequency limits and avoid sending messages at inappropriate times, such as late at night or early in the morning.
Following these guidelines will help ensure your messages are delivered and provide value to your customers.
Get Your Ultimate HubSpot Text Messaging Playbook for FREE
Discover how top HubSpot teams use SMS to boost engagement, close deals faster and streamline operations.
Instant download
Expert insights from certified HubSpot professionals
Ultimate Text Messaging Playbook

See how much revenue SMS could add to your HubSpot stack
Five inputs. Industry-backed benchmarks. Get your projected annual SMS revenue in under 30 seconds.
Calculate My SMS ROI