Sampling stages: proto, fit and sales samples, and what each one proves

This page is for anyone who treats "the sample was approved" as if it answered every question about an order

Every apparel order passes through an approvals stage before bulk cutting starts, and every approvals stage produces more than one sample, not one. A merchandiser who hears "the sample is approved" and stops asking which sample can let a factory cut fabric it should not yet touch. This lesson mainly teaches the decision flow: which sample approval, specifically, tells you that bulk production may begin, and which approvals tell you something else entirely, useful but different. Without this, a factory can spend a full order's cutting cost on the strength of an approval that never actually checked the thing that later went wrong.

What you need, and what this lesson does not cover

You need: the six stages of Order A's timeline from lesson 5.1, including the 2-week approvals stage, and the size-M measurements (body length, half chest, sleeve length and sleeve width) used when a garment's fit is checked.

By the end of this lesson you can:

• name the main sample types made before bulk production and state what each one is meant to prove;
• explain why approving one sample type does not approve another;
• check whether a pre-production sample has actually been made from the real bulk fabric batch, not assumed from an earlier sample;
• decide, from a stated fact pattern, whether an order is genuinely ready for bulk cutting;
• log which sample round caused a delay inside the approvals stage on the order tracker.

Not covered here: what a purchase order must contain before the approvals stage can even start (lesson 5.3), and how actual dates and status are logged once production is running (lesson 5.4).

Words you will meet in this lesson

"Approvals" is several checkpoints, and each one proves a different thing

A proto sample proves the design idea works at all. A fit sample proves the garment fits to the size specification. A sales or pre-production sample proves the bulk fabric, trims and construction match what was actually approved. Each answers a different question, and approving one of them does not approve the others. Treating "approvals" as a single tick-box hides which specific question has, and has not, been answered.

The same four sample types appear on almost every order, but which ones a buyer insists on can differ

None of these rounds replaces another. A style with a strong sales sample and a passed fit sample can still fail at PP sample stage if the bulk dye lot comes back a shade off, and that failure has nothing to do with either earlier approval.

Order A: Sara at Northline Apparel signs off three separate sample rounds before Delta Garments cuts 15,000 pieces

Before Delta Garments cuts Order A's 15,000 pieces, Northline Apparel's buyer Sara approves a proto sample, checking the construction of the basic cotton T-shirt. Next, Delta Garments' merchandiser Mona sends a fit sample, made in the correct 180 GSM single jersey at size M, checked against the size specification: body length 72 cm plus 4 cm cutting allowance, half chest 53 cm plus 2 cm, sleeve length 22 cm plus 2 cm, sleeve width 44 cm cut. Sara approves the fit sample. Only after the bulk fabric batch arrives from Colorline Dyeing does Delta Garments cut a pre-production sample from that specific batch and send it to Sara. Only once Sara signs off the PP sample does bulk cutting begin.

The 2-week approvals stage is not one review; it is at least three sample rounds in sequence

Lesson 5.1 gives Order A's approvals stage as 2 weeks inside the 16-week timeline. This lesson shows what fills those 2 weeks: production time for a proto sample, then Sara's turnaround time to review it; production time for a fit sample, then another turnaround; production time for a PP sample, then a final turnaround, all before cutting can start.

How to check whether an order is genuinely ready for bulk production

1. Confirm a PP sample specifically has been made, not just any sample, and that it was cut from the actual bulk fabric and trims batch, not from the fit sample's stand-in or earlier fabric.
2. Confirm the buyer's sign-off is on record for that PP sample, not for an earlier proto or fit sample being read as if it covered the bulk fabric too.
3. Check the date the PP sample was approved against the date bulk cutting is due to start, to see whether the approvals stage is still running.
4. Treat the order as still in approvals if no PP sample exists, regardless of how many other samples were approved, and do not release bulk fabric for cutting.

Assuming an approved fit sample means the order is ready for bulk cutting

A common mistake is to read a fit sample approval as covering the whole approvals stage. A fit sample proves only that the garment fits; it says nothing about whether the actual bulk fabric batch, which can differ slightly in shade, weight or hand-feel from the fit sample's fabric, will still meet the buyer's expectations. Only a PP sample, made from the real bulk fabric, proves that. Cutting bulk fabric on the strength of a fit-sample approval alone risks the full value of the pieces cut before anyone checks whether the bulk batch was actually acceptable.

• A proto sample checks the design and construction idea, often in a stand-in fabric.
• A fit sample checks the garment against the size specification, in the correct fabric, at the sample size.
• A sales sample checks buyer or customer interest, not construction or fabric.
• Only a pre-production (PP) sample, cut from the actual bulk fabric and trims, should trigger bulk cutting.
• One 2-week approvals stage can hold three or more sample rounds, each needing its own production time and buyer turnaround time.
• If no PP sample exists yet, treat the order as still in approvals, no matter how many earlier samples were approved.

Karim tells Mona that Order A's fit sample was approved last week, so bulk cutting can begin now that the bulk fabric has arrived

Karim, the production manager at Delta Garments, tells Mona, the merchandiser, that Order A's fit sample was approved by Sara last week. The bulk fabric has now arrived from Colorline Dyeing, the mill. Karim wants to release it for cutting today.

Is the fit-sample approval enough to start cutting the bulk fabric that has just arrived? Decide before opening the answer.

Order tracker: what the Approvals row actually covers, and where to log a sampling delay

The Log sheet has one row for "Approvals", with its planned date, actual date, status and notes. That single row hides the proto, fit and PP rounds this lesson covers. "Done" only belongs there once the PP sample specifically has been approved, not an earlier one.

If approvals runs late, use the notes column to name which sample round caused it. This needs no new sheet or column; the existing notes column, read carefully, already covers it.

Download the workbook from the course page and use this pattern for your own order's Approvals row.

Download the Order tracker (Excel)

Lesson 5.3: Order confirmation: what a purchase order must contain before production starts

You now know that "approvals" hides several sample rounds, each proving something different. The next lesson steps back one stage further and asks what a purchase order itself must already contain before a factory should even start the approvals stage. Back to the course map