All challenges
Sales book cover
Sales

The 28 Day Sales Challenge

From Hesitant to High-Performer in Four Weeks

Day 1 of 28IntermediateGet More CustomersProspectingOutreachObjection HandlingClosing

The 28 Day Sales Challenge is a practical, step-by-step program designed to help you stop hesitating and start selling with confidence. Over 28 days, you'll learn how to fill your pipeline with better prospects, write outreach that earns replies, run discovery that uncovers real pain, and close deals without discounting your way to the signature.

Each day focuses on one manageable lesson and action, helping you build skills and momentum without feeling pushy or burned out. You'll explore prospecting, qualification, objection handling, negotiation, follow-up, and pipeline discipline while developing a system you can actually maintain.

Whether you're new to sales and finding your footing, a rep stuck at a plateau, or a founder selling your own product, this challenge gives you the structure to show up prepared, move deals forward, and perform at your best every day.

Choose your format

Every version includes 28 days of email lessons on the challenge you purchased, delivered to your inbox.

Secure checkout · Start any Monday
Free first chapter

Get the first chapter of The 28 Day Sales Challenge right to your inbox!

Chapter 1, free — no purchase required. See how the challenge works before you commit to the full 28 days.

Free. No purchase required. Unsubscribe anytime.

By signing up you agree to receive emails from The 28 Day Challenge, including the free first chapter and related tips and offers. Unsubscribe anytime.

Who this is for

  • A founder, seller, or marketer responsible for bringing in new customers
  • Anyone whose sales results depend on bursts of effort instead of a system
  • Solo operators who need Sales to work without a big team behind it
  • Busy professionals who can commit 15 focused minutes a day

What you'll accomplish

  • A working sales pipeline with more than hope inside it
  • A daily prospecting and optimization habit that compounds
  • At least one measurable win — traffic, leads, or deals — in the first week
  • A repeatable process you can scale or hand to a new hire

What you'll learn

  • How to audit your current sales funnel and find the leak
  • The fundamentals that still work in Sales — and the hype to ignore
  • How to structure daily actions so progress never stalls on 'research'
  • Which numbers to watch weekly, and which to ignore
  • Templates, frameworks, and swipe files you'll reuse forever
  • How to turn your 28-day sprint into a permanent operating system
The arc

The 28-day overview

Four phases. Each one week long. Each day building on the last.

01
Days 1–7

Foundations & audit

See exactly where you stand, define what 'done' means, and set the 28-day target.

02
Days 8–14

Build the system

Construct the core machine one piece at a time — one focused action a day.

03
Days 15–21

Operate & optimize

Run it live, measure honestly, and fix what the data reveals.

04
Days 22–28

Make it stick

Document, automate, and lock in the rhythm so day 29 runs itself.

Try it on

Sample days

Three days from inside the challenge — the actual shape of the work.

Day 3 of 28

The honest audit

You can't fix what you haven't faced. Today you score every part of sales honestly — one page, no sugarcoating.

Day 12 of 28

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.

Day 24 of 28

Protect the system

Busy weeks kill good systems. Today you automate or eliminate the three steps most likely to break when you get slammed.

Included in every version

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.

Your inbox, day 12
Day 12 · 6:00 AM
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 — 15 minutes, no more.

Today's action
Portrait of Robert Coles
About the author

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 Robert
Reviews

Readers who finished

“Twenty-eight days sounded intimidating. It turned into the most manageable month of my career.”
Marcus T.
RevOps Challenge graduate
“I stopped waiting for motivation and started counting days. By day 28 the system was just... running.”
Dana R.
Marketing Challenge graduate
“The daily emails were the whole thing for me. One small action, every morning, no exceptions.”
Priya S.
Email Marketing Challenge graduate
Keep reading

Articles on this challenge

Deep dives from the blog on this same discipline — free, and useful on their own.

Questions

FAQ

Start the Sales challenge

Every version includes 28 days of email lessons on the challenge you purchased, delivered to your inbox.