How Do I Calculate SMS ROI for My Store?
The Simple SMS Formula for Your Store
The formula is short. The discipline is what makes it useful.
SMS = (SMS-attributed revenue - SMS costs) / SMS costs × 100
Here is what goes into that formula:
- SMS-attributed revenue: orders you credit to SMS campaigns or automations
- SMS costs: platform fees, message spend, carrier fees, compliance-related costs, and any other direct SMS expense
- Date range: a fixed window like the last 30 days, last month, or last quarter
If you sell on OpoShop, do not stop at one store-wide number. A healthy abandoned-cart flow can carry weak campaign performance for a while, and a strong campaign month can hide a weak automation setup. Both happen.
A simple example makes the math clearer:
Weak: “SMS made $4,000, so SMS is working.” Stronger: “SMS-attributed revenue was $4,000, total SMS costs were $800, and SMS was 400% using the same 30-day attribution window across campaigns and automations.”
That second version tells you something you can act on.
If you are still deciding whether SMS belongs in your channel mix, compare it with email before you build your model.
What Is SMS ?
SMS is the percentage return you get from what you spend on SMS.
That is different from total SMS revenue. Revenue tells you how much money SMS influenced. SMS tells you whether the money coming back was worth the money going out. Those are not the same question.
It is also different from click rate and list growth. Click rate tells you if people tapped. List growth tells you if more subscribers joined. Neither one tells you if SMS is paying for itself in your store.
For OpoShop merchants, that distinction matters because owned channels stack on each other. Email can look strong. SMS can look active. But if one channel is eating budget without enough sales behind it, the numbers will show it.
Why SMS Matters for an OpoShop Store
SMS matters because it helps you decide how much attention and budget SMS deserves next to email.
Most merchants do not need SMS to do everything. They need SMS to do a few jobs well: recover carts, bring back past buyers, and support repeat orders through an owned channel they control. That is the real use case for most stores on OpoShop.
Without a clear return number, it is easy to make the wrong call in either direction. Some merchants keep sending because clicks look decent. Some cut SMS too early because a couple campaigns underperform. Both decisions can be expensive.
A small OpoShop store should ask a plain question: is SMS producing enough sales, at a healthy enough margin, to justify list growth and sending costs? That is the test. Not vanity numbers. Not activity for the sake of activity.
How Do You Calculate SMS for Your Store?
The cleanest way to calculate SMS is to use one date range, total your SMS costs, total your attributed revenue, run the formula, then break the results apart by automations and campaigns.
1. Choose a date range
Pick a window you can repeat every month. Last 30 days works. Full calendar month works. Quarter works if your store has lower order volume.
Do not compare a 7-day campaign burst to a 90-day automation total and call it a fair read. That is where reporting gets muddy fast.
2. Total your SMS costs
Include every direct SMS cost you pay to send and manage texts.
That usually means:
- SMS platform fees
- per-message charges
- carrier or usage fees
- compliance or consent management costs tied to SMS
- any agency or contractor cost that exists only because you run SMS
If you are asking which SMS costs should go into your calculation, the short answer is all direct SMS costs. If the expense disappears when SMS disappears, it belongs in the math.
3. Total your attributed revenue
Use the revenue your SMS tool or analytics setup attributes to SMS campaigns and SMS automations.
This is where a lot of merchants trip up. If email and SMS both touched the same order, you need a consistent attribution rule. Otherwise, you will count the same order twice and the whole calculation stops being useful.
For a store on OpoShop, consistency matters more than chasing the “perfect” attribution model. Pick a model, keep it stable, and review it the same way every month.
4. Apply the formula
Once you have revenue and costs, the formula is simple.
If SMS-attributed revenue is $3,000 and SMS costs are $600:
($3,000 - $600) / $600 × 100 = 400%
That means SMS returned four times what you spent, above cost.
5. Segment by campaigns and automations
This is the part many store owners skip, and it is usually the part that makes the numbers useful.
Abandoned-cart texts often behave very differently from promotional campaigns. A win-back flow may quietly print solid returns while broadcast sends bounce around from month to month. If you only look at one blended number, you miss that.
If you want a cleaner setup for measuring SMS in your OpoShop store without turning reporting into a spreadsheet project, this is a good place to look at how we approach it.
Best Ways to Measure SMS: Overall, By Flow, or By Campaign
The best measurement method depends on the question you are trying to answer.
If you are deciding whether SMS deserves a place in your channel mix, use store-level. If you are improving your setup, use automation-level and campaign-level views too.
| Measurement approach | Best use | What it shows well | What it can hide |
|---|---|---|---|
| Overall store-level SMS | Channel budgeting | Whether SMS is worth keeping and growing | Weak campaigns masked by strong automations |
| Automation-level SMS | Flow optimization | Which automations recover revenue most reliably | Seasonal campaign spikes |
| Campaign-level SMS | Send strategy and creative | Which one-time sends actually convert | Long-tail repeat-order impact |
Store-level measurement is the cleanest starting point for a small merchant on OpoShop. You want one number that answers: is SMS paying its way?
Flow-level measurement is where the real improvements usually happen. Abandoned-cart texts, browse abandonment, post-purchase, and win-back all behave differently. They should not be judged as one lump.
Campaign-level measurement is useful, but it is also the easiest place to overreact. One promo can miss. That does not mean SMS is broken. It means that send missed.
Need the right metrics around? Review what to track in SMS beyond revenue so your reporting is not too narrow.
Common SMS Mistakes Store Owners Make
Most SMS measurement mistakes come from mixing signals that should stay separate.
The first mistake is ignoring costs. Revenue without costs is not enough. A channel can bring in orders and still be a bad use of budget.
The second mistake is mixing email and SMS attribution without rules. If an email and a text both touched the sale, you need one method for assigning credit. Otherwise, your numbers look better than reality.
The third mistake is judging too early. A new list, a new flow, or a new sending cadence needs enough time to settle. One campaign does not tell the whole story.
The fourth mistake is relying on clicks without purchase context. Clicks can help explain behavior, but clicks are not the finish line. Sales are.
The fifth mistake is chasing short-term list growth and getting sloppy with consent. TCPA-conscious list growth matters because bad consent poisons the channel. A bigger list is not better if the list is weak, poorly qualified, or collected in a way that creates risk later.
What We Recommend for TextLoop and OpoShop Merchants
We recommend starting with one monthly store-level number, then breaking it apart only after you have a stable reporting habit.
That means one fixed review window, one attribution setup, and one clean split between automations and campaigns. Start there. Then go deeper into abandoned-cart, win-back, and promotional sends.
For most merchants, abandoned-cart texts should be reviewed separately from promotional campaigns from day one. They serve different jobs, they convert differently, and they deserve different expectations.
We also recommend pairing the return number with a short supporting scorecard:
- attributed revenue
- spend
- list growth
- unsubscribe rate
- click rate
- conversion rate from click to order
- consent quality and compliance hygiene
That last point matters more than people think. A text list built with clear consent is smaller at first and stronger later. A messy list can create short-term sales and long-term pain.
Best answer: Use one consistent formula, review it monthly, and separate automations from campaigns before you make budget decisions. For most OpoShop merchants, abandoned-cart SMS tells you whether the channel has real purchase intent, while campaign results tell you how well your sending strategy is holding up over time.
If you want a straightforward next step, we built TextLoop for stores that want SMS to sit neatly next to email, not compete with it.
FAQs
What formula do I use to calculate SMS ?
Use this formula: (SMS-attributed revenue - SMS costs) / SMS costs × 100. That gives you the percentage return from what you spent on SMS.
What costs should I include in SMS ?
Include all direct SMS costs: platform fees, message charges, carrier fees, compliance-related costs, and any outside help you pay for only because you run SMS. If the cost disappears when SMS stops, include it.
Should I calculate separately for campaigns and automations?
Yes. Campaigns and automations do different jobs, so blending them into one number can hide what is actually working. Abandoned-cart texts often perform very differently from one-time promotional sends.
How do I track SMS revenue if customers buy later?
Use the attribution window and attribution model in your SMS tool, then keep that setup consistent from month to month. A later purchase still counts if your reporting rules credit SMS for that order within the chosen window.
Is SMS still worth it if it drives clicks but not many direct purchases?
Clicks alone are not enough, but clicks are not meaningless either. If SMS generates traffic without enough orders, review landing pages, offer quality, send timing, and whether email is taking the final click before purchase.
How often should I review SMS for my store?
Monthly is the best starting rhythm for most stores. Monthly reviews are frequent enough to catch problems and long enough to avoid overreacting to one send.
Ready to measure SMS with a cleaner setup in your OpoShop store? TextLoop is built for merchants who want an owned SMS channel that supports cart recovery, subscriber growth, and repeat orders without turning reporting into guesswork.
