Your item is bought, it travels a short distance inside China, and it lands on a shelf in a warehouse. Somebody there takes it out of the seller's packaging, puts it on a table, photographs it from a handful of angles, and uploads the set to your account. A notification arrives. That set of photos is your QC, and the only thing it asks of you is one decision.
The two letters
QC stands for quality check. In most industries that phrase describes an inspector with a spec sheet. Here it describes something much smaller and much more useful: photographs of the exact unit that will go in your parcel, taken before it goes in.
Not a photograph of the model. Not the seller's album shot. The specific object.
That is why the abbreviation shows up everywhere in the vocabulary — "QC pics", "send QC", "QCed and shipped", "posting my QC". Every one of those is about the same handful of warehouse images.
Where it sits in an order
The step only makes sense in sequence, so here is the whole shape of a normal order:
- You find an item and hand its link to a shopping agent.
- You pay for the goods. The agent buys from the Chinese seller on your behalf.
- The seller ships domestically to the agent's warehouse.
- The warehouse photographs the item. This is QC.
- You approve it, or you refuse it.
- Approved items sit in your warehouse account until you submit a parcel.
- You pay a second time, for international shipping, and it leaves.
Step five is the hinge. Before it, the item is still the agent's inventory and your problem is a conversation. After it, the item is packed into an international parcel and your options narrow to whatever the agent's dispute policy allows. This is the last cheap moment in the whole process.
Approve or refuse
The two answers have community shorthand attached. GL, green light, means approve — put it in my parcel. RL, red light, means refuse — send it back and get me another one, or refund me.
An RL is not free in time. The agent has to negotiate with the seller, the replacement has to be bought and shipped and photographed again, and the whole loop can add weeks. It is still usually cheaper than shipping an item you already know is wrong halfway around the world.
One thing worth understanding before you press either button: an RL gets you a different unit from the same production run. If the flaw you are looking at is a design fault baked into that run — a midsole colour that is wrong on every pair the factory made — then refusing gets you a fresh photo of the same defect. Our own batch notes are explicit about this on certain runs: some flaws are on every unit, and red-lighting will not fix them. When the problem is the batch rather than the item, the fix is a different batch, and the batch guides name the known per-run flaws on the silhouettes they cover.
Who takes the picture
Warehouse staff, moving quickly, photographing hundreds of parcels a day. They are not authenticators, they are not comparing your sweater against a retail reference, and they will not notice things you have not asked them to look for.
That has two practical consequences. The standard photo set is standard — a few angles, whatever the warehouse's template is — and if you want something specific, you generally have to ask. Most agents accept a note on the order requesting extra shots, a video, or a measurement, and several charge for the extended service. Check the fee page of the agent you actually use rather than trusting a number from a forum post.
What a photograph cannot carry
This is the part people learn the hard way.
- Smell. Solvent and glue odour is one of the most common complaints about a rep and it is invisible in every photo ever taken.
- Weight and hand. How heavy a bag feels, how a wool blend drapes, whether leather is stiff or soft — none of it survives a JPEG.
- Fit on you. A photo tells you the garment exists at the size printed on the tag. Rep sizing does not track retail, so measure against something you already own.
- How it wears. Whether a sole yellows, whether a print cracks after five washes, whether stitching holds. QC is a snapshot at day zero.
- Anything the angle hides. Nothing was photographed from underneath because you did not ask.
What QC is not
It is not authentication. These are replicas, and no warehouse photo makes one anything else.
It is not a warranty. Approving a set means you looked and said yes; it does not create an obligation on anyone downstream.
And a stranger's opinion on your QC set is a guess made from your photos. People post their pictures publicly asking for a verdict, and the useful replies point at a specific detail rather than saying "GL bro". The checks that actually catch defects are laid out in how to read QC photos; the rest of the first-week vocabulary is in the rep glossary.