
The 28 Day Customer Onboarding Challenge
Turn new customers into confident, engaged advocates.
Every version includes 28 days of email lessons on the challenge you purchased, delivered to your inbox.
Who this is for
- A customer success or account manager responsible for keeping revenue
- Anyone who watches churn numbers and feels powerless against them
- Founders who know retention is cheaper than acquisition but never work on it
- Busy professionals who can commit 15 focused minutes a day
What you'll accomplish
- A customer health and retention system running before the challenge ends
- Daily habits that catch at-risk customers before they churn
- At least one saved account or expansion conversation in the first two weeks
- A documented play your whole team can run without you
What you'll learn
- How to audit your customer lifecycle and find the silent leak
- Health signals that actually predict churn — not vanity metrics
- How to build a daily retention rhythm: check-ins, reviews, saves
- The exact scripts for renewal, save, and expansion conversations
- Templates for onboarding, QBRs, and win-back campaigns
- How to make retention a system rather than a heroic scramble
The 28-day overview
Four phases. Each one week long. Each day building on the last.
Foundations & audit
See exactly where you stand, define what 'done' means, and set the 28-day target.
Build the system
Construct the core machine one piece at a time — one focused action a day.
Operate & optimize
Run it live, measure honestly, and fix what the data reveals.
Make it stick
Document, automate, and lock in the rhythm so day 29 runs itself.
Sample days
Three days from inside the challenge — the actual shape of the work.
The honest audit
You can't fix what you haven't faced. Today you score every part of customer onboarding honestly — one page, no sugarcoating.
Ship the smallest version
Perfect is the enemy of shipped. Today you launch the smallest useful version of the thing you've been over-planning.
Protect the system
Busy weeks kill good systems. Today you automate or eliminate the three steps most likely to break when you get slammed.
The Daily Email Challenge
Each morning, the day's lesson lands in your inbox — a short read and one concrete action. It's the cadence that turns a book on a shelf into a system in your business.
Every version includes 28 days of email lessons on the challenge you purchased, delivered to your inbox.
Perfect is the enemy of shipped. Today you launch the smallest useful version of the thing you've been over-planning — 15 minutes, no more.

Robert Coles
Robert Coles has spent the last 20 years developing a career in marketing, revenue operations, sales, and brand development. Spanning over a dozen industries, he's a highly sought-after consultant working with some of the largest brands and hottest products on the market. Robert developed the 28 Day Challenge series and supporting books to help businesses of all sizes and professionals of all levels expand their reach and learn new skills. Robert is a lifelong entrepreneur with over a dozen brands in his collection (and growing). Robert is based in Nashville, TN and spends as much time as possible with his family, partner, and dog, Theodore.
More about RobertReaders who finished
“Twenty-eight days sounded intimidating. It turned into the most manageable month of my career.”
“I stopped waiting for motivation and started counting days. By day 28 the system was just... running.”
“The daily emails were the whole thing for me. One small action, every morning, no exceptions.”
Articles on this challenge
Deep dives from the blog on this same discipline — free, and useful on their own.
The Customer Onboarding Checklist That Prevents Month-Two Churn
Customers rarely churn at renewal — they decide in the first three weeks. Here's the onboarding checklist that earns the second month: expectations, first value, shared metrics, and the booked review.
Read the articleHow Long Does SEO Take to Work? A Realistic Timeline
SEO's biggest frustration isn't difficulty — it's delay. Here's an honest month-by-month timeline, what moves it, and how to tell it's working before your rankings do.
Read the articleCold Email Templates That Get Replies: Anatomy of Outreach That Works
Most cold emails fail before the first sentence — at the list, the reason, and the ask. Here's the anatomy of outreach that earns replies, with templates you can adapt today.
Read the articleFAQ
Related challenges

The 28 Day Customer Success Challenge
Reduce churn, drive expansion, and make customers want to stay.
View Challenge
The 28 Day Gainsight Onboarding Challenge
Build a stronger foundation for scalable customer success.
View ChallengeThe 28 Day Customer Retention Challenge
Keep more customers, build loyalty, and reduce churn.
View ChallengeStart the Customer Onboarding challenge
Every version includes 28 days of email lessons on the challenge you purchased, delivered to your inbox.























