Unwanted promotional text messages can be just as disruptive as repeated sales calls.
Missouri law recognizes that telephone solicitation is not limited to spoken conversations. Certain text messages promoting commercial transactions are included in the state's No-Call protections.
This means consumers may have legal rights when covered businesses repeatedly send prohibited promotional messages.
How Missouri law treats marketing text messages
Missouri Revised Statutes Section 407.1095 defines telephone solicitation broadly enough to include qualifying SMS and MMS communications.
The definition focuses on messages intended to encourage purchases, rentals or investments.
A promotional text does not escape state telemarketing requirements simply because it appears on a mobile phone rather than through a traditional voice call.
Commercial messages versus ordinary notifications
Not every text from a business is a telephone solicitation.
Appointment reminders, delivery updates, security notices and other informational communications may require different legal analysis.
A message offering a discount or encouraging a purchase is more likely to raise telemarketing concerns.
The message's actual purpose matters more than the label assigned by the sender.
The role of consent
Consumer permission can affect whether a promotional message is lawful.
A person may authorize certain communications when completing a form, requesting information or entering a business relationship.
However, consent must be evaluated according to the specific law involved. Permission for one type of communication does not necessarily authorize every future marketing message.
When repeated spam texts may violate Missouri law
Missouri's No-Call provisions can apply when covered promotional texts reach a protected number without an applicable exception.
A qualifying private claim under Section 407.1107 generally requires more than one unlawful solicitation within 12 months from the same person or entity.
Consumers must also establish the additional requirements for statutory relief.
Local spotlight: Mobile phone protection in Missouri
Missouri residents can register eligible personal mobile numbers on the state's No-Call list at no cost.
The Attorney General's office confirms that the registry covers personal cellular numbers, not just traditional home telephone lines.
Business telephone numbers are not eligible for the state list.
Preserving evidence of unwanted marketing texts
Text messages often provide useful evidence because the communication can be saved in its original form.
Screenshots may show the sender, message content and date of delivery.
Consumers should preserve complete conversations when possible, including any unsubscribe requests or responses.
It is also useful to document whether the sender identifies a business and whether similar messages arrive from different telephone numbers.
A pattern of messages may support further investigation, but the responsible sender must still be identified.
Common questions around Missouri spam text laws
Does Missouri's No-Call law cover text messages? Yes, qualifying SMS and MMS marketing messages are included.
Can a promotional text violate federal law? Yes, depending on the technology, consent and applicable federal restrictions.
Does replying STOP matter? It may provide evidence of a request to end messages, although the legal effect depends on the circumstances.
Are informational texts automatically illegal? No. Informational communications may be treated differently from promotional solicitations.
Can repeated spam texts support a lawsuit? Potentially, when the required legal elements are established.
