Email and text messages reach the same guest through very different habits. A text tends to get read within minutes, while an email might sit unopened for days, but that speed advantage doesn't automatically make SMS the better channel for every message a vendor wants to send.
What Each Channel Actually Does Well
- SMS tends to get read quickly, which suits time-sensitive messages like a same-day special or a closing announcement.
- Email supports more content and visuals, which suits a fuller update like a seasonal menu change.
- SMS carries a higher expectation of relevance, since guests are less tolerant of frequent unwanted texts than unwanted emails.
Matching the Message to the Channel
A same-day flash offer or a closure notice fits SMS's speed. A broader update, a new seasonal menu, a loyalty program explanation, fits email's room for detail. Using the wrong channel for the wrong message tends to either get ignored or feel intrusive.
A seasonal menu change sent as a text, for instance, gets read quickly but has no room to actually show the new dishes or explain what changed, which wastes the channel's speed on a message it can't fully deliver. The same update sent as an email arrives with photos and detail intact, even if it takes the guest a day longer to open it.
Frequency Matters More Than the Channel Itself
Overusing either channel, particularly SMS, tends to cost a vendor opt-outs faster than choosing the wrong channel for a single message would. A lower-frequency, well-targeted approach on either channel usually outperforms a high-frequency one on the technically better channel.
This is worth remembering specifically because SMS's higher open rate can tempt a vendor into overusing it simply because it works well initially, without accounting for how much faster that same channel burns through a guest's patience compared to email.
A useful rule of thumb: reserve SMS for messages a guest would genuinely want to know about within the hour, a same-day special, a closure, a short delay, and use email for everything that can wait a day or two, a seasonal menu update, a loyalty program reminder, a general announcement. Treating every message as SMS-worthy is the fastest way to burn through a guest's patience with the channel.
Applying that same rule consistently, rather than deciding channel by channel in the moment, also makes it easier to notice if a specific message type consistently underperforms regardless of which channel it's sent through, a signal worth investigating on its own.
Cost and Deliverability Differences Worth Knowing
SMS messages typically carry a small per-message cost through most sending platforms, while email sending costs are usually bundled into a flat monthly rate regardless of volume, which matters for a vendor sending to a large guest list regularly. Email is also more prone to landing in a spam or promotions folder unseen, while a delivered text is far more likely to actually be seen, even if it isn't acted on immediately.
A vendor with a genuinely large guest list should weigh SMS cost specifically before committing to it as the default channel for every message, since a per-message fee that looks trivial on a single send can add up meaningfully once multiplied across thousands of guests sent regularly.
None of this rules out using SMS at all, it simply argues for reserving it for the specific messages where its speed actually earns back that added per-message cost, rather than defaulting to it for every announcement regardless of urgency.
Frequently Asked Questions
Does SMS always get a faster response than email?
Generally yes for open rates, but a faster open doesn't always mean a faster or better response, particularly for messages that need more context.
Is there a recommended sending frequency for either channel?
It varies by vendor, but erring toward less frequent, more relevant messages tends to reduce opt-outs on either channel.
Can both channels be used from the same guest list?
Yes, AUANI's exportable guest list can support outreach through whichever channel or combination a vendor prefers to use.
Does opting into SMS require separate consent from email?
Generally yes, SMS marketing typically requires its own explicit consent, separate from an email opt-in.
What is the wider guide this fits into?
The marketing & repeat orders guide covers this alongside turning delivery guests direct and menu analytics.
Does SMS cost more to send than email?
Typically yes on a per-message basis, since most SMS platforms charge per text while email sending is usually bundled into a flat monthly rate.
Can a vendor start with just one channel and add the other later?
Yes, starting with whichever channel matches the vendor's most common message type, then adding the second channel once a clear need for it emerges, is a reasonable way to begin.
For the wider picture on repeat orders, including turning delivery guests direct and menu analytics, see the marketing & repeat orders guide.