Quick answer
Keep Omnisend if email and SMS already work together and nobody has a clear reason to split them. Compare Klaviyo if both channels need a new home, Postscript for a dedicated SMS program or Attentive if you want to compare messaging and service together. If the issue is who answers shoppers who text back, evaluate Zobi for that job while keeping your email program in place.
Before splitting email and SMS, ask whoever owns your weekly report to show how they would count a Shopify order that both providers take credit for. Zobi publishes this guide and appears in the shortlist.
See the sources and method for the scope of this comparison.
Shortlist the parts you need to replace
| Option | Reason to shortlist | What to carry over |
|---|---|---|
| Klaviyo | Rebuild email and SMS in a combined program. | The profile, flow triggers and each channel’s consent. |
| Postscript | Give SMS a dedicated operator or program. | The sending scope and link to the existing email flows. |
| Attentive | Compare a messaging and service proposal. | The signup flow and your service handoff requirements. |
| Zobi | Keep email while testing the conversation job. | The shopper context and ownership of follow-up. |
Postscript for a dedicated SMS program
Ask Postscript what Marketing and any managed scope cost. Name one owner for each SMS trigger so the retained Omnisend flows and the new sender do not both send.
Klaviyo to move both channels
Use Klaviyo’s plans to compare the full contact and send footprint. Bring a flow that currently uses email and SMS and verify each branch against the store data.
Attentive for messaging and service
Ask which part of the new proposal covers form growth, sends and Attentive Concierge. Confirm who covers the replies you use today.
Zobi for the reply without a full email migration
When shoppers need a product or delivery answer, use the actual reply as the demo. See Zobi for Shopify.
Before rebuilding your Omnisend flows
If your email and SMS flows already run the way you want, check where the shopper’s question goes when they answer the cart text.
Zobi can handle that Shopify checkout exchange and follow up. Compare it on the reply work you’re trying to cover, then agree which existing reminders should keep running.
If your team already answers those replies promptly, the existing flows may cover what you need.
See Zobi’s reply workflow and applyFree to apply.
Switch one SMS step while the email flow stays live
Omnisend can combine email and SMS in the same automation. Open the welcome flow and note which branches can still queue a text before you give the SMS step to a new sender. If turning off the old SMS step also changes the email schedule, include that rebuild in the switch. Omnisend workflow options
In a test setup, use one shopper already waiting for an Omnisend text and another who signs up after the switch. Check that Omnisend still sends the intended welcome email, that no old text goes out after the cutoff, and that the new sender queues one text for the eligible new signup.
Run a third shopper with email consent only. The welcome email should still go out on schedule and the SMS queue should stay empty. Confirm all three cases before moving the rest of the list.
Keep useful email flows in place until the test passes
Use Omnisend’s plan terms as the baseline for what stays. If you only need a store reminder, compare the native Shopify automation too.
Find the part of Omnisend you would pay to change
Pick one month that looks like your normal business and one campaign week that stretches it. Pull the plan invoice, the SMS usage detail and the workflow reports. Write down which of three things drove the search: a bill that got larger, a follow-up the team could not configure, or replies that no one owned. Each leads to a different shortlist.
For a rising bill, ask Omnisend for the price on the audience you actually intend to reach. Its published plan information shows contact allowances and separates the Global SMS credit offer. It also says text pricing varies by destination and volume. Compare your actual mix of countries, text and picture messages, and normal versus peak sends. If the expensive line is still the email audience after this check, an SMS-only move leaves that line in place. Omnisend pricing and SMS terms.
For a workflow problem, open the flow and find the first decision it gets wrong. A discount reminder that fires after an order and an SMS offer with the wrong product each call for different fixes. A vendor that can demonstrate one of those fixes in a test store has made a stronger case than one that shows more channels on the pricing page.
If shoppers reply and no one answers, give the trial team three real categories of question. A shipping deadline, a product fit question and a request to change an order make it clear where an approved answer ends and someone needs to take over. Review the conversation and the next queued marketing action. If the new tool can take responsibility for that job while your emails stay in place, you have a smaller change to price.
Who sees an SMS opt-out after you split the tools?
On cutover day, you can import a clean list and still miss the next opt-out. Imagine your store keeps Omnisend email and moves SMS to Postscript. A shopper emails support asking to stop texts. Which person records that request, and which tool sees it before the next queued SMS?
A shopper opts out of texts and remains subscribed to email
- SMS senderRecords the current choice and blocks the pending text.
- Email senderUses the shopper’s separate email permission to decide the next send.
Omnisend’s Shopify sync documentation says it does not pass SMS subscription status back to Shopify. Postscript’s subscriber guide shows how to look up a phone number and apply an SMS opt-out received through support. Those are two different records. Ask the finalist to show how your actual split setup will handle the request.
Use a test shopper eligible for both channels and give them a pending text from the proposed sender. Put an SMS-only opt-out into the support workflow you plan to keep. Watch the sender’s status change and check whether the pending text is skipped. Then open the shopper’s email record and verify the email subscription follows the policy you set for this exercise. Repeat with a second shopper so the operator can prove the change is specific to the right number.
If the test depends on someone remembering to make two updates, include that work in the quote. Keep the existing sender or consolidate ownership if no one can reliably cover it.
Keep one owner for the welcome offer
Take a skincare store whose Omnisend welcome email sends a first-order discount. The SMS step follows later, and the email series also explains how to use the products. The team wants a better SMS program. It has a choice about the offer before it has a choice about the vendor. One system has to create or select the code. The email and the text either use that same code or have an explicit reason to carry separate ones.
| Store decision | Who owns it in this test | When to stop the switch |
|---|---|---|
| Welcome discount | The existing flow or its agreed code source. | Two codes promise different terms to the same new signup. |
| SMS entry | The new sender, after the recorded cutoff and with verified SMS permission. | A signup appears eligible merely because a phone number was imported. |
| Order check | Every sender with a pending first-order message. | The old queue sends after purchase while the new queue skips. |
| Unresolved reply | A named operator with access to the thread and the offer. | The shopper gets another welcome reminder while a reply waits unanswered. |
Use one purchase to check the shared order stop. First, let the shopper enter the email flow and receive the code. Before the SMS is due, have them buy. Compare the timestamp of the order on both profiles and check each sender’s queue. If the old and new dashboards disagree, keep the rollout paused and find out which tool has the event and which contact it attached to. A manual cancellation helps that one shopper but leaves the root cause in place.
Omnisend says Shopify contacts, orders and products start syncing after connection. It distinguishes a contact record from its subscription state and says a synced phone number is generally non-subscribed for SMS by default. For a split program, find the consent origin for each channel and check that a test opt-out reaches the sender that can still queue a text. The exact route is part of the proposed setup. Omnisend’s Shopify sync and subscription rules.
Which Omnisend alternative is worth a full rebuild?
Klaviyo is worth a full-program demo if you want one team to own both channels and can name a segmentation or flow need the current build cannot satisfy. Ask for the plan at your marketable profile count and ask the vendor to rebuild one welcome split on that exact configuration. If the demonstration covers only a welcome email and a single text, compare it to repairing Omnisend before paying to move the rest. Klaviyo plan and active profile details.
Postscript is a candidate when SMS is its own operating job and someone still owns the Omnisend email program. Its pricing separates platform tiers, usage and applicable carrier fees, and its managed offering is described separately. Get a quote for the specific program your team would run. A dedicated SMS tool still needs someone to reconcile a paused offer, a broken handoff or an unanswered reply across tools. Postscript Marketing and Plus plans.
Attentive belongs in the comparison when the proposal covers SMS growth and shopper service. Its Concierge description includes AI and live agents. Make the quote spell out which part creates marketing sends, which part answers questions and where a store policy exception goes. Zobi is relevant when the narrower job is handling conversations around cart recovery. Give either option an ordinary marketing request and a policy question that needs a person, so you know what your lifecycle team still owns. Attentive Concierge and Zobi’s recovery and reply service.
Who gets credit when email and SMS run in separate tools?
A shopper clicks an email, follows a link in a text the next day and places one Shopify order. Within Omnisend, its documented last-touch rule credits the last eligible message. If you put email and SMS in different tools, each may credit that order under its own rules. Your store still has one order. The two dashboards can each be useful for their own channel and still overstate the total if you add them together. Omnisend’s sales attribution rules
Give the person who prepares your weekly report one completed Shopify order week to work from. Use the same currency and the same treatment of discounts and refunds in the store totals. Ask both vendors which order reference they can expose and what their report date means. Omnisend generally reports by message send date and offers a placed-order date setting in Sales Reports. Check that distinction before assuming a mismatch is a duplicate. Omnisend’s attribution dates and refund treatment
Build the combined view from Shopify orders. Where the reports expose a reliable order reference, mark each order as credited by email, SMS, both or neither. Keep unmatched claims visible on a separate line. If a provider offers only channel totals, keep its numbers in that channel’s report and use Shopify for the combined total. Have the report owner show where a refund would land and who corrects the report after it appears.
Keep both channels together if the team already trusts the current report and the proposed SMS move adds weekly reconciliation without solving a concrete SMS problem. A separate SMS program can still be a good fit when the team needs different tooling or reply coverage and knows who will own the combined report. Agree on that before a campaign has to be explained from two dashboards.
Ask every finalist for the same bill
Have each finalist price two setups if they offer both. The first keeps Omnisend email and takes over a defined SMS or reply job. The second moves both channels. For each, show the current and busiest-month counts of reachable email contacts, SMS subscribers by country, and messages by type and length. Ask the finalist to explain any difference between your count and the number they would invoice. Separately list the sending number, carrier costs, service coverage, onboarding and any agreed month of overlap.
Make a second list of work the vendor offers to migrate. Ask separately about contacts and consent, existing forms, reusable email templates, workflow branches and old message queues. Omnisend’s own inbound migration guide lists templates, then instructs merchants to recreate previous workflows and test the trigger. That is a practical question for any replacement vendor that offers help moving your data. Ask who is accountable for each rebuilt flow and who signs off after a test. Omnisend’s migration and workflow instructions.
Finish the comparison with a decision you can reverse. If the current flow can be repaired at an acceptable cost, keep it and revisit only if the same failure recurs. If the SMS-only trial passes the offer, permission and order checks, move that slice first and set a clear date for the old sender to stop. If the two systems cannot agree which shopper should get the next message, keep the established flow active while you compare an integrated rebuild. Have the SMS owner and email owner agree on the rollback and on who checks the first live queue.
Sources and selection
Options are grouped by the scope that a Shopify merchant needs to replace. The selected workflow is a test to run on your proposed setup.
Publisher disclosure
Published by Zobi, which offers shopper conversation software for Shopify stores.
Review how Zobi handles shopper conversations for your store.
Start growing revenue