Most sampling delays don't come from the factory. They come from the approval step — the part of the round that lives entirely inside your own team. Here's the workflow that keeps it moving.
The approval workflow that works
One approver. Name the single person whose sign-off advances the process. Others can review, but the factory needs one voice. When three people send three revision lists, the factory builds the longest one.
Written sign-off. Approve explicitly and in writing — an email, a message in the shared thread, a signed-off sample photograph. "Looks good!" in a group chat is not a sign-off; the factory cannot build a PP sample on vibes.
Approve against a reference, not a memory. The approved sample is the physical reference. Review the new sample side-by-side with it, and write changes as measurements ("shorten the rise by 1cm"), not as feelings ("make it fit better").
The three decision states
Every sample review ends in exactly one of three states, and it should be labeled:
- Approved. Advance to the next stage. Written sign-off captured.
- Approve with conditions. A short, specific, measurable list. One round. If the list is long enough that it needs its own project plan, that's a new proto round, not a revision.
- Reject / restart. The sample diverges from spec in a way that can't be fixed by revision. Be explicit about what failed and what the next round must contain.
There is no fourth state called "let's just wait and see." Waiting is a decision, and it should be written down as a pause so the factory knows the round is on hold rather than silently running.
The rhythm that keeps rounds short
48-hour review windows. A weekly sampling call, fifteen minutes, where the open samples are reviewed against the schedule and decisions are captured. A shared log of every sample, its stage, and its sign-off status. This is unglamorous, and it is the difference between a development round that takes a month and one that takes a quarter.
Frequently asked questions about sample approvals
Can multiple people approve samples?
Many can review, one should approve. Have the founder, designer and ops lead all look if you want — but the factory needs a single named approver whose sign-off advances the process. Conflicting revision lists are how rounds double.
How fast should I approve a sample?
Within 48 hours of receiving it. Faster is better — the factory schedules the next stage around your sign-off. A sample that sits un-reviewed for a week is a week added to your timeline and a signal to the factory that you're not serious about the schedule.
What if I'm not sure about a sample?
Approve with conditions or list the specific changes — but never let uncertainty become silence. "I'm not sure yet" is a decision, and it should be written down as such so the factory knows the round is paused rather than running.
Related reading
- The Apparel Sampling Pipeline — the stages this approval workflow moves you through.
- Why Your Sampling Round Is Eating Your Season — unclear approvals are failure mode number two; this is the fix.
- Writing a Tech Pack: What It Needs to Contain — approve against the pack, not against memory.
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