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Air Bar Zen 4 Supplier Audit Checklist Explained
Published 2026 · VapeWholesaleHub trade desk

A supplier audit checklist turns impressions of a Zen 4 factory into comparable data.
Between the factory gate and the retail shelf, supplier audit checklist is where most of the value on the Zen 4 is either created or lost.
Where two suppliers look identical on price, supplier audit checklist is usually the variable that separates them over a full year.
Why supplier audit checklist matters on the Zen 4
Production capacity, quality records and certification should be verified on site.
Seasonality interacts with supplier audit checklist more than most forecasts allow for, so a rolling review beats an annual one.
Traceability of raw materials matters increasingly to downstream buyers.
Reference specification
| Item | Value |
|---|---|
| Model | Zen 4 |
| Brand | Air Bar |
| Category | Box Mods |
| Battery | 800 mAh |
| Output range | 5-25 W |
| Capacity | 5.0 ml |
| Charging | Magnetic dock |
| Coil options | 0.6 / 0.8 / 1.0 ohm |
| Carton quantity | 120 units |
Re auditing annually keeps the relationship honest.
Practical notes for buyers
Keeping a short internal note on supplier audit checklist for each SKU pays for itself the first time a dispute arises over the Zen 4.
Shops that receive a short briefing on supplier audit checklist convert noticeably better than shops that only receive stock.
Checklist
- Check carton quantities against the commercial invoice line by line.
- Verify that artwork matches the approved compliance template.
- Agree in advance who pays for return freight on a defect claim.
- Review the reorder point after one full selling cycle.
- Request batch photographs and a packing list prior to shipment.
- Log sell through by account for the first eight weeks.
Commercial terms
Payment history is the single most reliable route to better terms, more than total annual volume.
Payment history is the single most reliable route to better terms, more than total annual volume.
| Volume tier | Indicative unit level | Lead time |
|---|---|---|
| Carton (89 units) | Tier 1 | 21-30 days |
| Pallet (1618 units) | Tier 2 | 14-21 days |
| Container (16185 units) | Tier 3 | 14-21 days |
Frequently asked questions
What should a Zen 4 supplier audit cover?
Capacity, quality control records, certifications, traceability and after sales responsiveness.
How quickly can a repeat order be produced?
For established configurations production typically runs two to four weeks, with transit on top depending on the chosen method.
Do you support long term supply agreements?
Yes, rolling agreements with defined review points work better for both sides than rigid annual commitments.
Can packaging be adjusted for our market?
Artwork localisation is straightforward; structural changes need larger volumes and a longer lead time.
Final word
Start with one change, measure it over a quarter, then decide whether it deserves to become policy.
Trade enquiry
Quotations, samples and artwork files are available on request. Please state model, quantity per SKU, destination and target delivery window.
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