You Do Not Have an Email Problem You Can Fix With SMS

Adding SMS to a broken email program does not double your revenue. It doubles your ways to annoy people.

Klaviyo wants to be your CRM. Not your email tool, your full B2C CRM: email, SMS, WhatsApp, RCS, push, all one stack, one login, one bill. That’s a smart move for Klaviyo. It is not automatically a smart move for you.

A channel is not a revenue line. It’s a multiplier on whatever program you already have. If your flows convert, a new channel gives you more surface area to convert on. If your flows don’t convert, a new channel gives you more surface area to fail on, at a higher cost per send.

SMS isn’t cheap. WhatsApp business messaging isn’t cheap. RCS is still finding its footing. Every one of these channels charges more per message than email and gives you a smaller, less forgiving audience. People opt into SMS expecting relevance and urgency. Get it wrong twice and they opt out for good, no warning, no second chance.

So before you turn on a new channel, ask what it’s actually multiplying.

If your welcome flow is generic, SMS won’t fix that. It’ll just text people the same generic message you were already emailing them, faster and at a higher cost per send.

If your abandoned cart flow has one email and no urgency, adding a text to that sequence doesn’t create urgency. It creates two channels with nothing worth saying.

If your offer isn’t compelling, no channel fixes an offer problem. You’ll just be underperforming in more inboxes at once.

The fix is boring and it works. Audit your core flows first: welcome, abandoned cart, post-purchase, win-back. Look at open rate, click rate, and conversion rate for each. Find where the message itself is weak, not where the channel is weak. Fix the copy, fix the offer, fix the timing. Get those flows converting the way they should on the channel you’re already paying for.

Once a flow is proven and profitable on email, that’s your signal. You have a message worth paying more to deliver faster or in a second inbox. That’s when SMS earns its cost per send. That’s when WhatsApp is worth the setup. Not before.

Omnichannel is a reward for a program that already works, not a repair kit for one that doesn’t.

Fix the flows. Fix the offer. Then decide if you need a second channel, and let the data tell you which one.

BLKDG helps ecommerce brands build email and SMS programs that actually convert, before we ever talk about which channel comes next. If you want a flow audit before you add another platform to your stack, let’s talk.