So the product has arrived. Now what? Don't just slap your brand on it and ship it out. Do a final verification before it goes to customers.

Pop open a few units from different batches and check the nicotine strength yourself. If you have a test kit, use it. If not, at least visually inspect the packaging for any signs of tampering or mislabeling. For disposables, you can do a quick puff test to see if the throat hit feels consistent with the labeled strength—it's not scientific, but it catches glaring errors.

Also, keep all your COAs and test records in a folder. If a customer complains, or if a regulator asks questions, you'll have documentation to prove you did your due diligence.