How to price a 200-line BOM in minutes

Pricing a large BOM by hand is roughly two minutes per line once you include tab-switching, quantity breaks and stock checks. At 200 lines that is a lost day, and the result is stale before you send it.

Here is the method that gets the same job done in minutes, and the traps that make people redo the work.

Step 1 — Clean the file before you price it

Most failed BOM runs are file problems, not sourcing problems. You need two columns that are unambiguous: manufacturer part number and quantity. Internal part numbers, descriptions and reference designators can ride along, but they cannot be the thing you price against.

Watch for the usual damage: quantities stored as text, merged header rows, part numbers with trailing packaging suffixes, and Excel turning a code into a date or dropping a leading zero.

One row per part, one clear MPN column, one numeric quantity column

Strip reel or packaging suffixes only if you do not care about packaging

Keep the manufacturer name when you have it — it disambiguates common codes

Step 2 — Price every line against every distributor at once

Serial lookups are what make BOM pricing slow. MySupplyParts prices up to 15 lines concurrently and asks every configured distributor for each line, then ranks the offers.

The ranking rule matters as much as the speed. A real priced offer beats a bulk-only or link-only result; in-stock beats out-of-stock; then the cheapest quantity-correct unit price wins. That order stops a tool from showing a cheap number nobody can actually buy.

Step 3 — Choose tariff-inclusive or tariff-free up front (US buyers)

For US flows the same BOM has two legitimate totals: landed cost with tariffs applied, and the pre-tariff figure. Mixing them inside one quote is how margin disappears.

MySupplyParts asks which mode you want before the run and keeps the whole BOM consistent in that mode, so the exported total means one specific thing.

Step 4 — Deal with the lines that come back thin

On any real BOM some lines will not resolve on the first pass: obsolete codes, house numbers, parts only sold through a quote desk. Those lines get a worldwide distributor sweep, and if pricing genuinely is not public, a verified link to the distributor page instead of a made-up price.

Practical moves for stubborn lines: retry them on their own, search the base code without packaging suffixes, and use alternates or cross-references where your design allows a swap.

Retry unresolved lines individually

Try the base part number without the packaging suffix

Check alternates for anything with one source or a long lead time

Flag single-source lines for the design team before you quote

Step 5 — Read order cost, not just single-piece cost

Two totals come out of a BOM run and they are wildly different. Single-piece extended cost assumes you can buy one of everything. Order cost respects each distributor's minimum order quantity, which on a prototype BOM can be ten times higher.

Use single-piece cost to compare suppliers, and order cost to plan a purchase. Quoting a customer from the single-piece total on a prototype run is the most common costing mistake we see.

Step 6 — Export and hand off

Export to CSV for your ERP or a costing sheet, or PDF for a customer-facing quote. To order, hand off to the winning distributor's cart or quick-order page — selected part numbers and quantities are copied for a single paste, and you need to be signed in at that distributor for their basket to hold.

Why is my BOM total so much higher than the per-piece prices?

Minimum order quantities. If a part is only sold in reels of 5,000, a quantity of 12 still costs a reel. Compare suppliers on unit price, but plan the purchase on order cost.

Why do some lines show a link instead of a price?

Because that distributor does not publish a price for that part publicly. Showing a verified link is honest; inventing a number would put a false figure in your quote.

Can two people work on the same BOM?

Yes. BOM runs live in a shared team workspace with task tracking, so sourcing work can be split and reviewed.