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Almost every SMS gets opened. The open rate matters less than the reason behind it. SMS is the channel where the buyer expects a real human on the other side. Open a thread there, and the buyer reads it like a message from a person.
Why Most Teams Have Wrecked the Channel
Generic blast tools taught the buyer that "your friend at Acme" is a sequencer with their first name in a merge tag. 3 messages in, the relationship is burned. The team calls it a campaign.
The channel is for the moment something in the conversation moved. That could be a question hanging, a signal off the site, or a reply waiting on a clearer answer.
3 Things We've Learned From 3.5M Real Sales Conversations
- Buyers tolerate timing far better than volume. A message at 10:14 because something in the thread happened at 10:13 reads as helpful. A message at 10:14 because a sequence said so reads as spam.
- The buyer answers the question that was on their mind, and ignores the offer that's on yours.
- The thread's value is memory. Every prior message is part of the next one. The buyer never has to start over.
Why Generic LLMs Aren't the Answer
Anthropic's research on persuasion found generic models too agreeable to negotiate. They concede when the buyer pushes. The model has to know when to push back, when to hold a price, when to wait.
SMS is the channel where that judgment is most visible. One wrong concession and the thread's gone.
A Practical Note for Teams New to SMS
Don't import the email playbook. Lead with the answer to one specific question. Earn the second message.
On the sales side, HubSpot teams report 2 hours per salesperson per week saved when the model carries the thread. Nobody composes each follow-up by hand. That's their calendar back, freed up for the calls that need a human voice.
