An SMS campaign may seem successful immediately after sending: messages are sent, customers' phones ring, and the team sees a large volume of deliveries. But sending is not the result. The result is what happens after the message: a click, an order, an appointment, a response, or a reactivation. That's why six metrics for SMS campaigns can make the difference between a quickly consumed budget and a channel that produces predictable revenue.
For marketers, this data shows which offer, segment, and sending time work. For product and development teams, they signal routing issues, outdated contact data, or flows that need optimization. Not all metrics carry the same weight in every campaign. A retailer will primarily track orders and revenue, while a service platform may prioritize confirmations and responses.
How to choose metrics for SMS campaigns
Before opening a report, establish the specific action you want to achieve. For a weekend offer, the goal may be a purchase. For a reminder message, it may be an appointment confirmation. For a support flow, it may be a response in conversation.
Then, use links with tracking parameters, distinct promotional codes, and dedicated landing pages. Without this structure, you will see that messages were delivered, but you won't be able to correctly attribute the results. Always compare similar campaigns: the same audience, similar offer, and the same analysis period.
1. Delivery rate
The delivery rate shows the percentage of messages accepted and delivered to the network or device, depending on the confirmations available for the route used. The basic formula is simple: delivered messages divided by sent messages, multiplied by 100.
This is the first metric to check because a message that doesn't reach cannot generate clicks or conversions. A poor rate may indicate inactive numbers, incorrect formatting, outdated databases, routing restrictions, or operator filters. Do not automatically assume that the platform is the cause. In many accounts, the problem starts with the quality of the list.
Periodically clean contacts, validate numbers at registration, and separate numbers that have repeatedly produced errors. For large volumes or international communication, HLR verification and network identification via MNP can reduce waste and help choose an appropriate route. A good delivery rate does not guarantee sales, but a low rate limits all other results.
2. Click rate
If the message includes a link, the click rate shows how well the text turns into active interest. The calculation is the number of unique clicks divided by the delivered messages, not all sent messages. Reporting to deliveries provides a more accurate picture of the reaction of those who actually received the message.
Clicks are influenced by the clarity of the offer, the relevance of the segment, and the positioning of the call to action. A message like "Up to 30% discount" is weaker than one that states to whom the offer applies, until when it is valid, and what the recipient needs to do. SMS has limited space, so every word must support the action.
Do not interpret a high click rate as an automatic victory. A curious or vague message may attract visits but may disappoint on the landing page. Track the click rate along with conversion to see if the interest generated by the message has commercial value.
3. Conversion rate
Conversion is the metric that links the campaign to the business objective. It can mean a completed order, filling out a form, booking a service, installing an app, or activating an account. The recommended formula is conversions divided by unique clicks, and for a broader perspective, you can also calculate conversions divided by delivered messages.
The difference between the two calculations matters. Conversions reported to clicks show the performance of the page and the offer after access. Conversions reported to deliveries measure the efficiency of the entire path, from message to result. If the click rate is good, but conversion is low, check the mobile experience, page speed, promotional code, and the number of steps required at checkout.
For campaigns that generate offline orders, use unique codes or short questions at the point of sale. Attribution will not be perfect, but it will be much more useful than assumptions based solely on traffic.
4. Revenue per delivered message
Revenue per delivered message directly answers the question any budget-responsible team has: how much does each message that reaches the customer produce? Divide the revenue attributed to the campaign by the number of delivered messages. The metric allows for comparing offers, segments, and types of campaigns even when volumes are different.
For example, a campaign sent to recent customers may have fewer orders than a general campaign but may generate more revenue per message due to a higher average basket value. This can justify more careful segmentation and a more personalized message.
Look at the margin, not just the revenue, especially when promoting aggressive discounts. A campaign that produces turnover but erodes profit or encourages purchases only at a discount is not necessarily a good long-term choice. The cost of messages, promotion, and logistics must be put in the same equation.
5. Response rate
For bidirectional SMS, the response rate shows the proportion of recipients who respond to the message. It is essential in support, confirmation, lead qualification, survey, or reactivation campaigns. Calculate unique responses divided by delivered messages and separately analyze useful responses from automatic or unclear ones.
A response is not always positive. It can be a question about the offer, a request for help, or an unsubscribe request. That's why conversation analysis is as valuable as the final percentage. If many clients ask the same things, the initial message does not provide enough details or the associated page does not address the main objections.
The team's response speed matters. A conversation initiated via SMS cools down quickly, and a message left unanswered can turn interest into frustration. Set clear rules for handling, support intervals, and templates for frequent situations without sacrificing the human tone.
6. Unsubscribe rate
The unsubscribe rate shows how many recipients choose not to receive messages after a campaign. It is calculated by dividing the number of unsubscribes by the delivered messages. A certain rate is normal and can clean the list of uninterested contacts. Sudden increases, however, are a warning.
Typical causes are excessive frequency, promises that do not match the offer, messages sent at inappropriate times, or lack of segmentation. A customer who has purchased a product usually does not need to receive the same offer three times in two days. Likewise, promotional messages sent at night can affect trust even if the offer is relevant.
Always respect consent, clearly identify the sender, and offer a simple opt-out option. These practices protect the brand's reputation, reduce complaints, and support long-term delivery.
Turn reports into better decisions
The six metrics must be read together. A high delivery rate and a low click rate usually suggest a problem of relevance, offer, or wording. Many clicks and few conversions often indicate a poor landing page or a too-complicated purchase process. Profitable conversions but high unsubscribes may mean that the immediate result comes with a cost to the audience relationship.
Create a simple dashboard for each campaign: segment, sending time, delivered volume, clicks, conversions, revenue, responses, and unsubscribes. After a few weeks, you will be able to observe real patterns, not just isolated results. Test only one variable at a time - the offer, wording, timing, or segment - so that differences can be correctly interpreted.
A platform like SMSense helps teams quickly launch campaigns, manage conversations, and connect messages to automated flows via API. However, the tool produces value only when measurement is linked to a clear objective and well-maintained contact data.
Start with the next campaign, not a complex reporting project: choose an objective, track these six values, and change one element in the next sending. That small discipline transforms SMS from a simple broadcasting channel into a driver of more precise business decisions.
