Guide · Knitting

Yarn lot traceability in knitting factories: a practical guide

How to follow every kilo of a buyer's yarn from your store to the invoice, and stop arguing about balances and wastage.

By the Accel Safety team · 13 October 2026 · 6 min read

Yarn cones in different colours and counts
Photo: Eric Muhr on Unsplash

Why traceability matters

A commission knitting factory holds other people's yarn. Every buyer wants to know how much of their yarn you received, how much became fabric, how much was rejected, how much came back and what they are being billed for. When those numbers do not reconcile, the factory loses money or the buyer loses trust, and usually both.

Where the trail usually breaks

  • At the store: yarn is received but not booked by lot, so later issues cannot be matched.
  • At the machine: yarn is issued "to production", not to a specific machine and program.
  • At quality: rejects are thrown aside without a record of machine, shift and defect, and sometimes still billed.
  • At delivery: handwritten challans with no unique number, so deliveries and bills drift apart.
  • At month-end: leftover yarn and wastage are estimated instead of recorded.

One key for every record: the Program ID

The fix is simple to describe: give every knitting program one ID and attach it to every record, from the first kilo booked into the store to the final bill. The buyer's own order number is kept for reference, but the Program ID is the key that links store, production, quality, delivery, billing and returns.

The eight hand-overs to record

  1. Receive: book buyer yarn into the store by lot, count and weight.
  2. Program: open a Program ID for the order.
  3. Issue: issue yarn to each machine with its exact lot.
  4. Knit: log kilos per machine and shift, with the operator (see our guide to the knitting production report).
  5. Inspect: record rejects by machine, shift and defect type, and never bill them (see our guide to grey fabric rejects).
  6. Deliver: send fabric on a printable receipt with a unique code.
  7. Return: send leftover yarn back on a return challan.
  8. Bill and close: bill what was delivered, then close the program.

Wastage and returns without arguments

Agree a wastage allowance with each buyer and record it. When the program closes, the yarn received, fabric delivered, rejects, returns and allowance should balance. If they do, the buyer sees a clean statement. If they do not, you know exactly which hand-over to check. Our guide to the yarn wastage allowance shows how to calculate process loss and what to agree with each buyer.

Getting started

You can run this method on paper, but it takes discipline at every shift. AccelKnit, our knitting ERP, puts the Program ID on every screen, keeps a live balance for each buyer and works in English and Bangla. Book a free demo to see it on one of your own programs.