The 5 Biggest Mistakes People Make When Building Their First Online Course
The 5 Biggest Mistakes People Make When Building Their First Online Course
5 minute readBuilding your first online course is one of the most valuable things you can do to scale your expertise. It's also one of the most common ways to spend a lot of time and money and end up with something that doesn't work. These are the five mistakes I see most often — and how to avoid every one of them.
Whether you're building a course solo or working with a team, these mistakes apply. They're especially relevant if you're exploring custom online course development for the first time.
We'll cover:
Mistake 1: Starting with the content instead of the outcome
Mistake 2: Trying to teach everything you know
Mistake 3: Producing before validating
Mistake 4: Underestimating the production timeline
Mistake 5: Launching to silence
Frequently asked questions
Table of Contents
- 1. Mistake 1: Starting with content instead of outcome
- 2. Mistake 2: Teaching everything you know
- 3. Mistake 3: Producing before validating
- 4. Mistake 4: Underestimating the timeline
- 5. Mistake 5: Launching to silence
- 6. Frequently asked questions
- 7. Key tips
Mistake 1: Starting With the Content Instead of the Outcome
The most common first-course mistake is starting by asking 'what do I know about this topic?' instead of 'what should my learner be able to do when they're done?'
Content-first courses are almost always too broad, cover too much, and leave learners uncertain about what they actually learned. Outcome-first courses are specific, focused, and immediately applicable.
Before you write a single lesson title, complete this sentence: 'After completing this course, learners will be able to ___.' Fill it with a specific, observable behavior — not a vague aspiration. That sentence is your course design brief.
The test: is your outcome specific enough?
Too vague: 'Understand leadership principles'
Specific enough: 'Conduct a structured one-on-one meeting with a direct report using the SBI feedback framework'
Mistake 2: Trying to Teach Everything You Know
Subject-matter experts have a systematic tendency to over-scope their courses. You know so much about this topic that leaving things out feels irresponsible. So you add another module, then another section, then a bonus lesson — and end up with a course that's twice as long as it needs to be and half as effective.
According to eLearning Industry research on course completion rates, average completion rates for online courses hover around 15 percent. Course length is one of the primary predictors of non-completion. Every extra module you add reduces the percentage of learners who finish.
The fix: for every lesson you're considering including, ask 'does a learner need this to achieve the stated outcome?' If the answer is no, cut it. If it's interesting but not essential, move it to a bonus section or a separate course.
Mistake 3: Producing Before Validating
The most expensive course-building mistake is recording, editing, and publishing a full course before you know whether anyone wants it.
Validation before production doesn't have to be complex. A landing page with a 'coming soon' email capture. A pre-sale at a discount. Five conversations with people in your target audience who give you honest feedback on the concept. Any of these takes a week. A full course build takes months. Run the validation first. See how we approach this in our guide on how to build an online course for your organization.
The most expensive online course mistake isn't choosing the wrong platform or the wrong price. It's spending three months building something nobody needed.
Mistake 4: Underestimating the Production Timeline
First-time course creators almost universally underestimate how long course production takes. Recording is the visible part. What takes the most time is everything around it: writing scripts, designing slides, editing video, building the course in an LMS, writing the sales page, setting up payments.
A realistic estimate for a first-time course builder creating a 5-module course with basic production:
Outline and script writing: 8 to 12 hours
Slide design: 4 to 8 hours
Recording: 3 to 5 hours
Video editing: 6 to 12 hours
LMS setup and course building: 4 to 8 hours
Sales page and launch prep: 4 to 6 hours
Total: 29 to 51 hours of work. Plan for twice whatever you first estimate.
Mistake 5: Launching to Silence
A course that launches with no audience, no email list, no community, and no distribution plan will fail to generate sales — regardless of its quality. Building the course is half the work. Building the audience to sell it to is the other half, and most first-time course creators skip it entirely.
The time to build your distribution is before the course is finished — ideally before you've started building it. A waitlist, an email list, an active LinkedIn presence, or a community of people who trust your expertise are all assets that make a launch work.
Our workshops and webinars service is one of the most effective ways to build an audience before a course launch — live engagement builds trust faster than any other format.
Frequently Asked Questions
How long should my first course be?
Shorter than you think. A focused, 60-to-90-minute course that delivers one clear outcome is more valuable than a 10-hour course that tries to cover everything. Your first course should be the minimum content required to produce the promised transformation. You can build depth in a second course once you have learner feedback from the first.
Should I build my course before or after validating it?
After. Always after. Validation means at least some evidence that real people want this specific course enough to pay for it (or sign up for a waitlist, or tell you explicitly they'd buy it). Building before validating is how you end up with a polished course nobody buys.
What if my first course isn't perfect?
Ship it anyway. Every course gets better after real learners go through it and give you feedback. The fastest path to a great course is through a good-enough first version, not through more planning and polishing. 'Done' beats 'perfect' for a first launch, every time.
Key Tips for Avoiding First-Course Mistakes
Write the outcome statement first, before anything else.
Cut any lesson that doesn't directly serve the stated outcome.
Validate before you produce. A week of validation saves months of wasted production.
Double your timeline estimate. Whatever you think it'll take, it takes longer.
Build your audience before you launch your course. Distribution is half the product.
How Course in 30 can help
At Course in 30, we build online courses, employee training, and onboarding programs that people actually finish. If you're ready to turn your expertise into a course that works, let's talk.
