How often should I send marketing emails on Shopify?

For most stores, 2 to 4 planned campaigns a month plus a weekly newsletter if you have enough to say. Stores with frequent new drops or a sale-driven model can go higher, but watch unsubscribe and spam complaint rates as your early warning sign, not opens.

Should my Klaviyo flows be on the email calendar too?

No, not once they're live. Flows run on their own trigger, not a date, so putting them on a calendar grid next to your campaigns mixes two different systems. Keep a separate one-page list of which flows exist and when each one was last reviewed instead.

Is there a free email marketing calendar template I can copy?

Yes. A spreadsheet with columns for send date, campaign name, segment, subject line, and status covers almost every store's needs. Tools like Smartsheet and Asana offer free downloadable versions, but a plain Google Sheet works just as well and is easier to keep updated.

How many emails is too many before people unsubscribe?

There's no fixed number that applies to every list. Watch your own unsubscribe rate after each send: a steady rate under roughly half a percent is normal, and a sharp jump after a specific campaign is the signal to slow down or re-segment, not the raw email count.

The Email Marketing Calendar a Shopify Store Actually Needs

An email marketing calendar should only have one kind of email on it: campaigns, the one-time sends you schedule for a specific date. Your welcome series, abandoned cart flow, and win-back emails are not campaigns. They're flows, built once and triggered by what a shopper does, and they run whether or not anyone is looking at a calendar that week. Most Shopify stores do fine with 2 to 4 planned campaigns a month, built around real sales dates, plus a weekly newsletter if there's enough worth saying. Mix the two systems up and you either forget to plan campaigns at all, or you end up double-booking a sale announcement on top of a flow email the same subscriber was already getting.

What actually goes on the calendar, and what doesn't?

A calendar is for things that happen on a date: a product launch, a holiday sale, a restock announcement, a weekly roundup. It is not for things that happen when a shopper does something, because those don't have a date, they have a trigger.

Split your email program into two buckets:

Campaigns (the calendar). Dated, planned, one-time. Sale announcements, launches, newsletters, roundups.
Flows (not the calendar). Always-on, triggered, built once. Welcome series, abandoned cart, abandoned checkout, post-purchase, win-back.

One widely used calendar template actually tells you to put "triggered flows" in the same grid as your newsletters and promos. That's a mistake for a Klaviyo-based store: a flow doesn't get a send date, because it fires every time a shopper hits that trigger, today, next week, and six months from now. The only thing that belongs in a calendar-style document for flows is a short list of which ones exist and when you last reviewed the copy, not a scheduled send.

How many campaign emails should a Shopify store actually send a month?

There's no universal number, but a reasonable default for most stores is 2 to 4 planned campaigns a month, plus a weekly newsletter only if you genuinely have something worth saying every week. A store running frequent drops or deep in a promotional category can go higher. A small, considered-purchase brand often does better with fewer, better campaigns than a packed calendar.

The number matters less than the reason behind each send. If you can't finish the sentence "we're emailing because ___" with something better than "it's Tuesday," skip the send and wait for a real reason: a restock, a price change, a seasonal moment, a story worth telling.

What does a real month look like on the calendar?

Here's a template for a mid-size Shopify store running a mix of promotions and content:

Week 1
  Mon  Newsletter — new arrivals or a behind-the-scenes story
  Thu  (flows only, no campaign)

Week 2
  Tue  Campaign — early access or a themed promotion
  Fri  Newsletter (optional, skip if nothing new)

Week 3
  Mon  Newsletter
  Wed  Campaign — the main sale push for the month

Week 4
  Thu  Campaign — last-chance reminder for the month's sale
         (only if Week 3's sale is still running)

Each row needs a segment, not just a send-to-everyone blast. A "last-chance" email going to someone who already bought the item is wasted inbox space and an easy unsubscribe.

How do flows and campaigns compete for the same inbox?

They compete more than most calendars account for. If a shopper is three days into your abandoned cart flow and also lands on your newsletter list for the month's sale campaign, they might get two emails within hours of each other.

Klaviyo has a setting for exactly this: Smart Sending, which caps how many marketing messages one profile can receive inside a set window so people don't get buried. The default Smart Sending window for email is 16 hours. That means a shopper who already received a message from Klaviyo won't get another marketing email from you until that window passes, even if a flow and a campaign both try to reach them.

Smart Sending doesn't touch transactional messages like order confirmations, and it only applies within the window you set, so it's not a substitute for actually checking your calendar against what's live in your flows before you hit schedule. Think of it as a backstop, not a plan.

It's also a reminder of why the campaign-versus-flow split matters for performance, not just organization. Omnisend's 2025 benchmark report, built from over 27,000 brands, found automated flow emails converting at 1.49% against 0.08% for one-time campaign emails, and generating $3.41 in revenue per email sent against $0.155 for campaigns. Flows aren't just easier to maintain. They're doing most of the quiet, reliable revenue work, which is exactly why they deserve to be built right once and then left alone, off the calendar entirely.

What's a simple 12-month shape for a Shopify sales calendar?

You don't need every retail holiday on your calendar, only the ones that fit your store. A reasonable skeleton to start from and cut down:

January — new year, new habits angle; a slow month for most stores, good for content over promotions.
February — Valentine's Day, if remotely relevant to your product.
March to April — spring refresh, Easter if relevant.
May — Mother's Day.
June — Father's Day, early summer.
July — a mid-year sale slot; many stores use this as a quieter promotional month.
August to September — back-to-school if relevant, early fall refresh.
October — Halloween if relevant, early build-up content for Q4.
November — Black Friday and Cyber Monday, the single biggest promotional stretch of the year for most e-commerce stores.
December — holiday shipping deadlines, last-minute gift messaging, year-end.

Drop anything that doesn't fit your product. A pet-products store doesn't need a Valentine's push just because the calendar says so, and forcing a date that doesn't fit your brand reads as filler to your list.

How do you keep producing content for the calendar every month?

The calendar is the easy part. Writing and designing a fresh campaign email every week or two, on top of keeping flows current, is where most one-person and small marketing teams fall behind. AI email tool vs hiring an email designer breaks down the real cost of each route: a freelance designer runs roughly $40 to $150 an hour, and an AI tool like JetFlow runs $59 to $249 a month for 35 to 65 finished emails generated from your store's actual products and branding.

Whichever route you pick, the emails still need somewhere to land. If your core flows (welcome, abandoned cart, win-back) aren't built yet, that's worth fixing before you worry about the calendar at all. See the best Klaviyo add-ons for Shopify stores for what else is worth connecting once your flows and calendar are both in decent shape.