Packaging Guide
What Is Amazon Kitting and Bundling? A Seller's Guide to Multi-Pack Compliance
By Alice Wu, CEO & Founder Published · Last updated
Short answer
Kitting physically packages several items into one sellable unit under its own new FNSKU before it ships to Amazon; virtual bundles sell existing ASINs together without repackaging. A kit must be sealed as one unit with a consistent component count, or Amazon may treat it as separate units.
Kitting vs. Virtual Bundles
These two terms get used interchangeably but describe different things:
- Kitting means physically combining multiple separate items into one sellable package before it ships to Amazon — the items are permanently packaged together under a single new barcode.
- Virtual bundles are an Amazon listing feature that lets you sell multiple existing ASINs together without physically repackaging them — Amazon ships the components separately but charges and lists them as one unit.
If your product doesn’t qualify for virtual bundles (or you want full control over presentation), physical kitting is the alternative.
| Physical kitting | Virtual bundle | |
|---|---|---|
| Items physically repackaged together | Yes, before shipping to Amazon | No |
| Barcode | New FNSKU for the combined unit | Existing component ASINs |
| How it ships from Amazon | As one sealed unit | Components shipped separately, listed and charged as one unit |
| Control over presentation | Full | Limited to the listing |
How Kitting Assembly Actually Works
- Spec sheet first. Exact component count, orientation, and insert placement are documented and sample-approved before a full production run starts.
- Hand assembly. Most kits are still assembled by hand rather than machine, because component shapes vary too much for automated packing lines to handle reliably at small-to-medium volume.
- New barcode for the combined unit. A kitted bundle needs its own FNSKU — it does not inherit the barcode of any individual component.
- Sealed as one unit. Shrink wrap or bundle bagging keeps components from separating or shifting in the carton.
Common Compliance Mistakes
- Shipping components loose in the same box without sealing them as a combined unit (Amazon may treat this as separate units, not a bundle)
- Forgetting to apply a new FNSKU to the kit itself
- Inconsistent component count between kits in the same batch
When Kitting Is Worth the Extra Labor Cost
Combo listings and gift sets typically convert better and can command a higher price point than selling components separately — the labor cost of assembly is usually justified by the margin improvement, especially around gifting seasons. If you want a gift set presented in a branded box rather than shrink wrap, we also make custom printed boxes from a 500-unit MOQ per design.
We assemble kits by hand to a written spec, apply the new barcode, and handle the sealing — see our kitting & bundling service or send us your component SKUs for a per-unit quote.