Wholesale Guide

Mod Approval Workflow From Sample to Shipment — Wholesale Clubs

Published 2026-02-20 · 7 min read · by the VapeWholesaleHub sourcing team

Buyers often ask us to explain why two mod samples that look identical behave differently after a month. The answer is almost always tolerance control, and it is more interesting than it sounds.

Mod product overview — Reference view of the mod line prepared for wholesale evaluation.

How Mod Fits the Assortment

Decide early whether mod is a traffic driver or a margin line in your store. The answer changes how you price it, where you place it and how hard you push it at the counter.

Selling Mod at Store Level

Rotate mod facing rather than price for the first month. Visibility changes sell-through more reliably than a small discount, and it does not train customers to wait for offers.

A mod display that answers strength and flavour without staff involvement outsells a prettier one that does not. Most customers will not ask, so the fixture has to do the work.

Logistics That Protect Margin

Carton dimensions for mod are a design decision, not a packing afterthought. A few centimetres on the master carton can change how many units fit a pallet, and that repeats on every order.

Split mod shipments across two sailings when the order is large enough. It costs slightly more but removes the risk of a single event wiping out a full quarter of stock.

Mod logistics and packing — Master carton configuration used for mod shipments.

What to Fix Before Approving Mod

A written mod specification should be short enough to read in a minute and precise enough to argue about. If a factory cannot confirm a number in writing, assume the number is whatever is cheapest that week.

Where possible, tie part of the mod payment to inspection against the written spec. It focuses attention on the numbers rather than on the relationship.

Reference specification for Mod orders
Product category	Refillable kit
Resistance band	1.0 - 1.2 ohm
Capacity tolerance	+/- 2%
Puff count method	Declared by capacity
Master carton	240 units
Carton weight	3.7 kg
Shelf life	24 months
Storage	15-25 C, dry, away from direct light

What Mod Really Costs Landed

Compare mod quotes on the same incoterm. A price that looks better because it excludes a cost you assumed was included is not a saving at all.

Build mod price tiers around order sizes your customers actually place. Tiers that only make sense on a spreadsheet get ignored, and you end up discounting ad hoc instead.

Indicative reference points for planning purposes: entry tier from USD 2.20 per unit at 2000 units, mid tier at USD 1.41, and volume tier at USD 1.13 for full container quantities. These figures move with specification, packaging and freight, so treat them as a shape rather than a quote.

Practical Checklist

Keep sealed retained samples from every production batch.
Agree the tolerance band in writing before approving artwork.
Ask how the factory measures puff count, then compare like with like.
Rotate stock by batch code rather than by delivery date.
Confirm the current customs classification with your own broker.
Write the complaint threshold into the order terms.

Frequently Asked Questions

How are price changes handled on repeat orders?

{K} pricing is reviewed against input costs and volume rather than adjusted casually. Any change is confirmed in writing before the next order is scheduled, with the reason stated so you can judge it yourself.

How long does a mod order take to arrive?

Production typically takes ten to eighteen working days after artwork approval, and transit depends on the method you choose. Air express is fastest, sea freight is cheapest at volume. We confirm both at quotation so there is no surprise later.

Is there a warranty on mod?

Manufacturing defects are covered against the retained sample standard. Normal wear, misuse and damage after opening are not. We publish the threshold in the order terms so both sides know exactly what the claim process looks like.

Can I mix strengths in one order?

In most cases yes, as long as each strength meets the minimum run length. Mixed strength cartons are popular with retailers building their first display because they show the full ladder without over committing.

What is the usual minimum order for mod?

For a standard production run the minimum is normally one master carton per flavour, though mixed cartons can be arranged for a first order. If you are testing the line, ask about a sample pack first and treat the freight as part of your research budget.

Next Step

Questions that are not answered here are usually the interesting ones. Reach out with the specifics of your market and we will answer with numbers rather than adjectives.

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