Mistake #1: Not verifying the supplier.

You see a great price on a popular disposable like the VERTEX-25K and think, "I'll take a hundred." But if that supplier isn't legit, you could be selling counterfeit goods, face legal issues, or lose your money entirely. Always check that the supplier has a real business license and is registered with the FDA (if you're in the US) or equivalent authority. A quick phone call to verify their address works wonders.

Mistake #2: Ignoring age verification.

Online vape sales require you to confirm the buyer is 21 or 18 depending on your state. If you skip this, you're not just risking a fine—you're risking your business. Use a reputable third-party age verification service at checkout. It's not optional.

Mistake #3: Overordering on hype.

When a new flavor drops, it's tempting to load up. But unless you have data that it'll sell, you're tying up cash in inventory that may sit. Start with a small test order and reorder based on what actually moves.