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How Do I Make Sure the Factory Always Has the Latest Tech Pack for Each Style?

Fashion brands find the factory sewed from an old tech pack after comments went by email. We keep one current version per style with changes signed off.

Updated 3 min readBy SpiderHunts Technologies

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Quick answer — TL;DR

Factories make mistakes from old tech packs because changes travel as email attachments and WhatsApp photos, and nobody can say which version is current. We keep one controlled record per style with numbered versions, a change log, factory acknowledgement of each version and comments tied to the exact point in the spec.

The pocket that was meant to be gone

The production samples arrive for the new utility jacket. The chest pockets you removed after the second fit session are back. The sleeve length is the old one. You check your email and find the revised tech pack you sent, version 4, three weeks ago. The factory replies with a photo of the version 3 PDF pinned to their cutting table. Somewhere between your designer's email, the agent's WhatsApp and the factory's printer, version 4 got lost.

Now you are choosing between accepting a jacket you did not design or delaying the whole drop while it is re-sampled.

How versions get crossed

  • Tech packs are PDFs or spreadsheets sent as attachments, so every reply creates another copy.
  • Fit comments are sent separately as photos with arrows, not in the tech pack itself.
  • The agent or sourcing office forwards some changes and not others.
  • Files are named 'final', 'final v2' and 'FINAL use this one'.
  • Nobody records that the factory has received and accepted a version.

Everyone involved is trying to get it right. The problem is that there is no single place that says 'this is the current version, and the factory has confirmed it'.

What a wrong version costs

Where it shows upWhat it costs
Production samplesAnother sample round, more weeks lost
Bulk productionA run made to the wrong spec
FitReturns for faults you had already fixed
RelationshipArguments with the factory over who sent what
TimeDesigners hunting through email to prove a change

How we keep one current tech pack

  1. Each style has one record holding its tech pack: measurements, construction details, trims, artwork and bill of materials. Old versions are kept but clearly marked as superseded.
  2. Every change creates a new numbered version with a short note saying what changed and why, for example 'v4: chest pockets removed, sleeve shortened, see fit session 2'.
  3. Fit comments and photos are attached to the version they belong to, not sent as separate messages.
  4. The factory and agent get a link, not an attachment, so they always open the current version. They can still download a PDF, stamped with the version number and date.
  5. When a new version is issued, the factory is asked to acknowledge it. Until they do, the style shows as 'waiting for factory confirmation'.
  6. A dashboard lists every style in development, its current version and whether the factory has confirmed it.

If you already use a product lifecycle system for this, we connect to it rather than replacing it. Many smaller brands do not, and the tech packs live in folders, which is where this helps most.

The next fit session

After the fit session, your designer updates the jacket to version 5, adds the fit photos and notes, and issues it. The factory contact gets an email with the link and confirms it the next morning. When the production sample arrives, anyone can open the record and see version 5 was confirmed on that date. If something is wrong, the conversation is about fixing it, not about which PDF was on the cutting table.

Working with agents and more than one factory

Many brands work through an agent who manages several factories. The agent can have access to all their styles, and each factory only sees its own. Comments from the factory, such as 'we cannot source this zip', are logged against the version so decisions are recorded. Where factories prefer WhatsApp, a message with the link and version number is still better than a forwarded PDF.

Signs your tech packs are drifting

  • Samples arrive with changes you had already removed.
  • Tech packs are emailed as attachments with 'final' in the file name.
  • Fit comments are sent separately from the spec.
  • You cannot prove which version the factory worked from.
  • Designers spend time searching emails to settle arguments.

FAQ

Frequently asked questions

The questions readers ask us after this guide.

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Ask about your project

Do we need a full PLM system?

Not always. For a small or mid-sized brand, a controlled version record with factory confirmation covers the main problem. If you need full PLM, we say so.

Can we keep our tech pack templates?

Yes. We work with your existing Excel, Illustrator or PDF templates and control the versions around them.

Will factories actually use a link?

Most are happy with a link that also gives them a PDF. For factories that insist on attachments, the PDF carries the version stamp.

Is our design data secure?

Access is per user, and each factory only sees its own styles. Links can expire and downloads are logged.

What drives the cost?

The number of factories and agents involved, and whether it connects to an existing product system.

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