Why Your Marketing Automation Ignores SMS

Lucas: If I told you there's a channel in your marketing stack that gets opened more than 90 percent of the time within three minutes, you'd assume everyone's using it, right? Luna: I'd say that sounds like SMS. But if you look at most B2B marketing automation setups, SMS is either completely absent or tacked on as an afterthought. Lucas: Exactly.

And that gap is what I want to dig into today. Most marketing teams have email workflows dialed in - triggered welcome sequences, abandoned cart reminders, webinar follow-ups. But the same logic applied to SMS? It's rare.

And it's costing them. Luna: So why is SMS so underused in B2B? Compliance fear? Or just habit?

Lucas: Both, honestly. Let's start with the compliance piece because that's the biggest blocker. In the US, the Telephone Consumer Protection Act - TCPA - is strict. You need explicit opt-in, and the rules vary by message type.

But here's the thing: if you're already collecting consent for email, you can often capture SMS consent in the same form. A simple checkbox with clear language about message frequency and data rates. Luna: Right. And the platforms have gotten better at managing this.

HubSpot, Marketo, Pardot - they all have sms native features or integrations now. But adoption still lags. Lucas: Let me give you a concrete example. There's a mid-market SaaS company I worked with - about 200 employees, selling project management software to other B2B firms.

They ran weekly webinars and relied on email reminders. Their no-show rate was hovering around 40 percent. So they added an SMS reminder - just one text sent two hours before the webinar, with a calendar link and a short note. They had to segment only people who'd opted in for SMS, which was about 15 percent of their list.

But that small segment saw a no-show reduction of 18 percentage points. Luna: And those are real people who showed up because of that text. That's a direct revenue impact if the webinar is tied to a demo or a close. Lucas: Exactly.

And the cost was negligible - they used Twilio through HubSpot's integration, and the total spend for that campaign was under $200. Compare that to the cost of a single lost lead. Luna: Let's talk about the other big use case: abandoned cart or abandoned form. B2B e-commerce or even content downloads - someone fills out half a form and leaves.

An SMS could re-engage them. Lucas: I've seen that work well too. A B2B office supplies retailer - they sell to companies, not consumers - had a checkout abandonment rate around 70 percent. They set up a triggered SMS to go out one hour after abandonment, with a discount code.

The conversion rate on that SMS was 12 percent, compared to 4 percent on their email-only follow-up. Luna: That's a 3x lift. And the SMS was much shorter - just 'Hey, you left items in your cart. Use code SAVE15 to complete your order.'

No images, no tracking pixel nonsense. Lucas: Which brings up another point: SMS is inherently less noisy than email. Your inbox is cluttered with newsletters, receipts, spam. A text message feels personal.

It's a direct line. But that's also why overuse is dangerous. If you spam SMS, people opt out fast. Luna: So the key is to treat SMS as a high-value, low-volume channel.

Only for time-sensitive or action-critical messages. Not for weekly newsletters. Lucas: Absolutely. And that's where marketing automation really shines - you can set triggers based on behavior, not just broadcast.

Someone downloads a white paper? Maybe an SMS with a link to a related case study two days later, if they haven't opened the email. That's a real orchestration play. Luna: But what about the operational side?

Building those triggers requires clean data - you need to know who opted in, and you need to sync that between your CRM and your SMS platform. That's another reason some teams hesitate. Lucas: No question. If your data hygiene is poor, SMS will amplify problems.

You could accidentally text someone who never consented, which is a compliance violation and a trust killer. So before launching any SMS workflow, you need a clean segmentation with documented opt-in timestamps. Luna: Let's talk about the tech stack options. Twilio is the obvious one, but there's also MessageBird, Sinch, and native integrations in platforms like HubSpot's Operations Hub or Salesforce Marketing Cloud.

Lucas: Right. And the pricing models vary. Some charge per segment sent, some have monthly flat fees. For a small B2B operation, you can start with a pay as you go model and test with a few hundred messages per month.

The ROI is usually clear within the first campaign. Luna: I want to push back on one thing though. Isn't SMS becoming less effective because of iMessage and RCS? People might not even see a text if it's buried in a different thread.

Lucas: That's a fair point. But the data still shows SMS open rates above 90 percent within minutes, even with RCS. The key difference is that SMS is universal - every phone can receive it. RCS is still not fully adopted across carriers and devices.

So SMS remains the safest bet for reach. Luna: And for B2B, many decision-makers are on their phones constantly. A text about a critical deal update or an event reminder cuts through. Lucas: Let's talk about measurement.

How do you attribute a sale to an SMS? That's tricky. If someone gets a text, then later converts via email or direct visit, last-touch attribution will miss the SMS role. Luna: Exactly.

So you need either UTM parameters in the SMS link or a multi-touch attribution model that gives partial credit. Most marketing automation platforms can track clicks from SMS links and associate them with a contact record. Lucas: And you can set up conversion goals in your platform. In HubSpot, for example, you can create a workflow that sends an SMS, then a follow-up email two days later if no click, and track which touchpoint drove the conversion.

Luna: That's the kind of orchestration that separates advanced marketers from basic ones. It's not just about adding a channel - it's about how channels work together. Lucas: Let's zoom out. If someone's listening and thinking, 'I want to test SMS but I'm worried about compliance,' what's the first step?

Luna: Audit your current consent collection. Do you have an opt-in checkbox for SMS on your forms? If not, add one. Make sure the language is clear: 'I agree to receive text messages at this number, message and data rates may apply.'

That's the TCPA safe harbor. Lucas: Then pick one specific trigger - low-hanging fruit. Webinar reminder, abandoned cart, or a high-value content download follow-up. Start with a small segment that's already opted in.

Run it for 30 days. Compare the conversion rate to your email-only control. Luna: And if the result is positive, scale gradually. Add more triggers, but always monitor opt-out rates.

If you see more than 2 percent opt-outs per campaign, you're sending too many. Lucas: I think the biggest misconception is that SMS is only for B2C. But B2B buyers are people too. They respond to a timely, personal text just like anyone else.

Luna: Especially in sales cycles where speed matters. If a prospect just downloaded a pricing page, an SMS from a sales rep within five minutes can be powerful. But that's more sales enablement than marketing automation. Lucas: It's a blurry line.

And that's okay. The point is, SMS is an underused channel in most B2B stacks, and it doesn't have to be complicated. Luna: If these kinds of marketing conversations have sparked something you've actually used in your own work, a couple of dollars a month is genuinely what keeps these going - buy me a coffee dot com slash fexingo, if you've gotten something out of them. Lucas: Yeah, that's the only reason this show stays ad-free.

And we really do read every message there. Luna: Alright, back to the stack. One more thing I think is worth touching: MMS versus SMS. If you're sending images or GIFs, that's MMS, which is more expensive and sometimes filtered differently by carriers.

Lucas: Good point. For B2B, plain text SMS usually performs better anyway. A simple, scannable message without branding fluff. You can include a link, but keep it short.

Use a link shortener if needed. Luna: And always include an opt-out instruction. 'Reply STOP to unsubscribe.' That's legally required and also good practice.

Lucas: Let's look forward a bit. With the rise of conversational AI and chatbots, SMS could become a two-way channel for marketing. Imagine an SMS that says 'Would you like to schedule a demo? Reply with a time.'

That's already happening in some tech stacks. Luna: But that requires integration with a chatbot or a live agent system. It's more complex but the engagement is higher. Lucas: We'll probably cover that in a future episode.

For now, the takeaway is: SMS isn't dead, it's underutilized. Start with consent, pick one trigger, measure, and scale. Luna: I'd add: don't try to replicate your email workflows in SMS. Use SMS for what it's good at - immediacy and personalization.

Lucas: Great note to end on. Thanks, Luna. Luna: Thanks, Lucas.