Join 140+ DTC Shopify Brands

retention guides.

How we run retention for subscription and DTC brands, written from the accounts we manage.

Checkout Champ.

Checkout Champ Klaviyo agency for subscription brands

Email Kong is the Klaviyo agency for Checkout Champ subscription brands. We bring rebills, declines, cancels and pauses into Klaviyo and build the flows on them.

Read the guide

Checkout Champ Klaviyo integration: what syncs and what doesn't

What the Checkout Champ Klaviyo plugin sends, the rebill toggle that is off by default, NEW_SALE vs rebill orders, and how to add subscription events.

Read the guide

Getting Checkout Champ subscription events into Klaviyo

How to get Checkout Champ rebills, declines, cancels, pauses and pre-billing into Klaviyo with Postback Export Profiles, and what to watch for.

Read the guide

Failed payment emails for Checkout Champ in Klaviyo

How to build failed payment emails and SMS in Klaviyo for Checkout Champ: Rebill Decline vs Recycle Failed, decline reasons, update-card buttons and Churn Buster.

Read the guide

Cancel save and winback flows for Checkout Champ subscriptions

How to build cancel save and winback flows for Checkout Champ subscriptions in Klaviyo: the Cancel event, one reason per email, reactivate buttons and Click-to-Cancel.

Read the guide

Pre-billing reminders for Checkout Champ subscriptions

How to send upcoming charge reminders for Checkout Champ subscriptions from Klaviyo, what to put in them, and why we keep portal links out.

Read the guide

Checkout Champ data problems in Klaviyo, and how to fix them

Why Checkout Champ orders and revenue look wrong in Klaviyo: rebills off, duplicates, multi-brand leaks, Shipping Protection in carts and double-sending autoresponders.

Read the guide

Moving to Checkout Champ and keeping your Klaviyo flows

How to move subscriptions from Shopify with Recharge or Loop to Checkout Champ, or run both, without your Klaviyo flows going quiet. Includes a Checkout Champ glossary.

Read the guide

Checkout Champ vs Recharge vs Loop for subscription retention

Checkout Champ vs Recharge vs Loop for subscription retention: published pricing, Klaviyo events, cancel flows, dunning and who each one fits.

Read the guide

subscriptions.

Checkout Champ vs Recharge vs Loop for subscription retention

Checkout Champ vs Recharge vs Loop for subscription retention: published pricing, Klaviyo events, cancel flows, dunning and who each one fits.

Read the guide

Moving to Checkout Champ and keeping your Klaviyo flows

Move subscriptions from Shopify, Recharge or Loop to Checkout Champ, or run both, without your Klaviyo flows going quiet. Includes a Checkout Champ glossary.

Read the guide

Checkout Champ data problems in Klaviyo, and how to fix them

Why Checkout Champ orders and revenue look wrong in Klaviyo: rebills off, duplicates, multi-brand leaks, Shipping Protection and double-sending autoresponders.

Read the guide

Pre-billing reminders for Checkout Champ subscriptions

How to send upcoming charge reminders for Checkout Champ subscriptions from Klaviyo, what to put in them, and why we keep portal links out.

Read the guide

Cancel save and winback flows for Checkout Champ subscriptions

Cancel save and winback flows for Checkout Champ subscriptions in Klaviyo: the Cancel event, one reason per email, reactivate buttons and Click-to-Cancel.

Read the guide

Failed payment emails for Checkout Champ in Klaviyo

Failed payment emails and SMS in Klaviyo for Checkout Champ: Rebill Decline vs Recycle Failed, decline reasons, update-card buttons and Churn Buster.

Read the guide

Getting Checkout Champ subscription events into Klaviyo

How to get Checkout Champ rebills, declines, cancels, pauses and pre-billing into Klaviyo with Postback Export Profiles, and what to watch for.

Read the guide

Checkout Champ Klaviyo integration: what syncs and what doesn't

What the Checkout Champ Klaviyo plugin sends, the rebill toggle that is off by default, NEW_SALE vs rebill orders, and how to add subscription events.

Read the guide

Checkout Champ Klaviyo agency for subscription brands

Email Kong is the Klaviyo agency for Checkout Champ subscription brands. We bring rebills, declines, cancels and pauses into Klaviyo and build the flows.

Read the guide

Recharge to Loop migration: what moves and what you rebuild

Moving from Recharge to Loop: what moves, payment methods and gateways, selling plans, the portal, timeline, risks and the Klaviyo flows to rebuild.

Read the guide

Loop vs Recharge vs Skio: 2026 Subscription App Comparison

Loop vs Recharge vs Skio in 2026: published pricing, cancel flows, payment recovery, Klaviyo integration, migration and the Recharge-Skio deal.

Read the guide

Skio to Loop: What to Check After the Recharge Deal

Recharge agreed to buy Skio in 2026. What Skio brands should ask now, and a checklist for moving to Loop, including the Klaviyo flows to rebuild.

Read the guide

Failed Payment Recovery for Shopify Subscriptions

How to recover failed subscription payments on Shopify: retry timing by failure reason, card-update SMS and email, and the Loop and Klaviyo setup.

Read the guide

How to Design a Subscription Cancel Flow That Saves

How to build a subscription cancel flow that keeps subscribers: cancel reasons, the right offer per reason, skip, swap and pause, and winback after.

Read the guide

Loop Subscriptions Agency and Partner

Email Kong is a Loop Platinum Partner. We run cancel flows, payment recovery, winback and Klaviyo flows on Loop events for 6 brands.

Read the guide

Subscription Retention Agency

Email Kong runs subscription retention for Shopify brands on Klaviyo and Loop: cancel flows, failed payment recovery, winback and subscribe offers.

Read the guide

by industry.

Retention for Products Customers Buy Once

How to run email retention for durable products like bags, furniture and tools: first-order flows, accessories, second categories, referrals, care and upgrades.

Read the guide

Email Marketing and Klaviyo Agency for Jewelry Brands

Email Kong runs Klaviyo email and SMS for jewelry brands: gifting calendars, abandonment flows for high-value pieces, ring sizing, engraving and care emails.

Read the guide

Retention and Klaviyo Agency for Skincare Brands

Email Kong runs Klaviyo email, SMS and Loop subscriptions for skincare brands: routine-based reorders, skin type data, sample to full size and regimen bundles.

Read the guide

Retention and Klaviyo Agency for Supplement Brands

Email Kong runs Klaviyo and Loop retention for supplement and women's health brands: reorders by serving count, day 14-30 education and claim-safe email copy.

Read the guide

Retention and Klaviyo Agency for Pet Brands

Email Kong runs Klaviyo email, SMS and Loop subscriptions for pet brands: reorder timing by bag size and pet weight, multi-pet households and pet cancel reasons.

Read the guide

Klaviyo playbooks.

The Klaviyo flows every Shopify brand needs

The Klaviyo flows every Shopify brand needs, in order of priority: triggers, number of emails, timing and the mistakes we find on most accounts.

Read the guide

Klaviyo SMS for Shopify brands: when to add it and how to run it

When to add Klaviyo SMS, how to collect consent (TCPA, toll-free verification, PECR), which flows to add texts to, how often to send and what it costs.

Read the guide

Why Klaviyo emails go to spam and how to fix it

Why Klaviyo emails land in spam and how to fix it: Gmail and Yahoo sender rules, DMARC, spam rate under 0.3%, engaged sending, sunset and bot sign-ups.

Read the guide

BFCM 2026 Email and SMS Playbook for Shopify Brands

A BFCM 2026 email and SMS plan for Shopify and Klaviyo brands: key dates, list prep, segments, margin-safe offers, subscribers and the weeks after.

Read the guide

agency comparisons.

Best Klaviyo agencies for subscription brands (2026)

The best Klaviyo agencies for subscription brands in 2026, on Loop, Appstle, Checkout Champ, Recharge and Skio, who each one suits and what to ask.

Read the guide

Best retention agencies for Shopify brands (2026)

The best retention agencies for Shopify brands in the US and UK in 2026, what each one is good at and how to pick the right one for your store.

Read the guide

Best Loop Subscriptions agencies (2026)

The best Loop Subscriptions agencies in 2026 for cancel flows, failed payments, migrations and retention, and who each one suits.

Read the guide

Best Klaviyo agencies in London (2026)

The best Klaviyo agencies in London in 2026, what each one does well, who it suits and what to ask before you sign.

Read the guide

How to Choose a Klaviyo Agency: 12 Questions to Ask

How to choose a Klaviyo or retention agency: when one makes sense, the questions to ask before signing, the red flags, and how to compare proposals.

Read the guide

Klaviyo Agency vs In-House vs Freelancer in 2026

Agency, in-house hire or freelancer for Klaviyo? An honest comparison of cost, speed, skills, risk and management time, and when each one wins.

Read the guide

Klaviyo Agency Pricing in 2026: What It Costs

What a Klaviyo or retention agency costs in 2026: market ranges, retainer vs % of revenue, what drives the price, and how to judge if it pays off.

Read the guide

ready to get started?

Get your custom email marketing audit and see exactly where you’re leaving money on the table.

Book your discovery call