Find the first quantity you can actually submit
A minimum order quantity sets a floor. An order multiple or increment restricts the valid steps above it. Available stock answers a separate question: whether the supplier can fulfill the requested quantity from the stock it shows. Read all three from the specific packaging offer and confirm the resulting quantity with the supplier.
For a build needing 125 pieces, consider two fictional offers:
| Offer | Quantity rule | Smallest valid quantity for 125 | Visible stock |
|---|---|---|---|
| A | Minimum 100; multiples of 50 | 150 | 140 |
| B | Minimum 1; increments of 1 | 125 | 200 |
Offer A shows more than the build need but fewer than its smallest valid quantity. Do not round down to 100 unless the remaining 25 have another confirmed source. Offer B can cover the required quantity, subject to current checkout or quote evidence.
Confirm where the increment starts
Some terms are expressed as multiples of a pack; others specify a minimum and increments above it. They give different answers when the minimum is not itself a multiple. A minimum of 30 with increments of 20 from that minimum permits 30, 50, 70; a rule requiring multiples of 20 and at least 30 permits 40, 60, 80. If the feed doesn't make the basis clear, verify the first quantity at or above your need instead of guessing.
Store raw values with their source and normalize to a purchasable offer only once you know what the fields mean. DigiKey's ProductSearch reference is one supplier-specific starting point. The cut tape versus reel guide explains why two offers for the same electrical part may use different order rules.
Who this is for
Use this for build planners comparing distributor packaging offers. The examples illustrate arithmetic. The selected offer, current stock and account-specific checkout govern the real order.