The 7 Deadly Sins of Sales
(And How to Avoid Them)
After coaching hundreds of sales professionals one-on-one — and riding shotgun on countless client meetings — I started to notice a pattern.
The best reps, the ones consistently hitting their numbers, avoided certain traps.
The others?
Well, they kept making the same costly mistakes over and over again.
I call them the 7 Deadly Sins of Sales.
And if you can spot and fix even one or two, you could see an instant lift in your results.
Here they are — straight from the front lines.
Ready to Level Up Your Sales Game?
If you recognise yourself in any of these “sins”, don’t beat yourself up.
Awareness is the first step to mastery.
Tweak a few behaviours… and watch your results shift faster than you think.
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1. Missing the Moment to Build Rapport
Sales can start to feel like Groundhog Day — same meetings, same objections, same close.
But when you go into autopilot, you miss those small, golden opportunities to genuinely connect.
People buy from people they like and trust.
Stay awake. Stay curious. Build rapport like your results depend on it — because they do.
2. Assuming You Know What They Want
The more experienced you are, the easier it is to fall into this trap.
Yes, you probably do know what they need — but let them tell you first.
Listen first. Diagnose later. You’ll build trust, and they’ll feel truly heard.
3. Asking Closed Questions
Closed questions (yes/no questions) kill conversations.
Open questions unlock insights, needs, and opportunities.
Ask better questions like:
“When it comes to [insert feature], what’s most important to you?”
4. Talking Twice As Much As You Listen
We have two ears and one mouth for a reason.
Great salespeople listen more than they speak.
If you’re doing all the talking, you’re not learning what really matters to the client.
5. Overloading with Features
It’s tempting to show off everything your product can do.
But customers don’t want to hear everything — they want to hear what’s relevant to them.
Find their pain points.
Match three (at most four) features that solve their specific needs.
Less is more.
6. Over-Promising and Under-Delivering
In a rush to close the deal, it’s easy to promise the world.
But if you can’t deliver exactly what you said — on time — you’ll lose trust fast.
Do the opposite: under-promise, over-deliver.
Say Friday, deliver Thursday. Create raving fans, not angry customers.
7. Making Customers Feel Like a Number
Every person you meet wants to feel important, valued, and special.
Make them feel like they’re your only customer in the world.
It’s not just good manners — it’s good business.
People will pay 10–15% more if they feel valued and get great service.
