When a shipment arrives, most shop owners feel relieved and move it straight to shelves. That works fine until the customer returns start coming in, the one-star reviews pile up, or a full batch ends up sitting unsellable because of a defect pattern nobody caught. Receiving inspection is not an optional step. It is the only moment when you can document what you actually got before any of it ships to a buyer.
Why incoming QC matters more than most operators think
By the time a 1688 shipment reaches your warehouse in Vietnam, it has passed through at least three or four sets of hands: the factory packing line, the China consolidation warehouse, the international carrier, and sometimes a domestic transit hub. Every handoff is an opportunity for goods to be swapped, shorted, or damaged without anyone flagging it.
If you do not inspect and document when you receive, you lose your ability to claim later. The supplier will say goods left the factory correctly. The carrier will say they delivered what they received. No documentation means no leverage. Receiving QC is the step that creates the evidence.
Beyond disputes, consistent inspection gives you actual numbers to compare across batches. If the defect rate on this lot is twice the previous one from the same factory, that is a signal to act on. Without those numbers you are running on feeling, and feeling is not an argument you can take to a supplier.
Step 1: Count cartons before you open anything
Before opening a single box, count the number of cartons received and compare with the figure on the airway bill or shipping document. Inspect the outside of each carton: punctures, crushed corners, moisture damage, signs of being opened and resealed. Any carton that looks off needs to be photographed and noted before you touch anything inside.
Take an overview photo of the entire pallet or batch before unpacking, and individual photos of any carton showing external damage. This sounds slow but takes a few minutes and it is the clearest evidence you have with the carrier if damage is found inside. A photo taken after unpacking is far weaker than one taken with the carton still sealed.
If the carton count is short, note it immediately and contact the freight agent or carrier the same day. Claim windows for lost goods are short, often just a few business days depending on the carrier. Waiting costs you the right to claim.
Step 2: Count units inside
Once the carton count checks out, open and count the actual units against the invoice or packing list. Quantity discrepancies happen more often than expected, even when it is just a handful of units short or a small overage.
Short counts need to be documented and sent to the supplier right away. Overages are rarer but also need to be logged because they affect your inventory records. Do not assume the packing list is always correct. Hand-packing at small 1688 factories is common, and small variances happen.
If the shipment contains multiple SKUs, count each one separately and record it. Do not add everything into one total and call it close enough. A discrepancy in one SKU disappears in an aggregated count.
Step 3: Pull a sample and check for defects
This is the most time-consuming part, and the one that cannot be skipped.
You do not need to inspect every single unit in every batch. The practical approach is to sample based on lot size:
- Fewer than 100 units: inspect the whole lot, or at minimum 30 percent.
- 100 to 300 units: inspect roughly 20 to 25 percent, drawn randomly from multiple cartons, not pulled from one box.
- More than 300 units: inspect at least 50 to 80 units, spread evenly across different positions in the lot.
The reason for drawing from multiple cartons is that quality problems tend to cluster. One carton can be fully defective while the rest are fine. Sampling from only the first box will miss it.
When inspecting each unit, record the defect type clearly:
- Functional defects: the product does not work, missing components, missing accessories that should be in the box.
- Cosmetic defects: scratches, dirt, deformation, color that does not match the approved sample, misaligned printing.
- Packaging defects: crushed boxes, missing Vietnamese secondary label where required by law, missing documentation.
Do not lump everything into a single "defective" bucket. Categorizing by defect type tells you whether the problem is at the production stage, the packing stage, or from transit, and that determines who you go back to.
Step 4: Calculate the defect rate and decide what to do
After sampling, calculate the defect rate for the batch:
(Units with defects / Units inspected) x 100 = Defect rate (%)
Acceptable defect rates depend on the product category and whatever you agreed with the supplier upfront. There is no single universal threshold, but common reference points:
- Below 2 percent: normal for most consumer goods.
- 2 to 5 percent: worth documenting and flagging to the supplier.
- Above 5 percent: grounds for requesting a replacement, compensation, or deduction on the next order, and a reason to reassess the relationship.
If the defect rate is high, do not ship that batch out first. Defective goods reaching buyers create return costs, cancellation rates, and shop rating damage that are far more expensive than negotiating a resolution with the supplier.
Step 5: Log everything and save the records
The entire inspection must be recorded in writing, not just in your memory.
A basic receiving log contains:
- Date received.
- Supplier name and the 1688 order number.
- Quantity ordered and quantity actually received, per SKU.
- Number of units sampled and defects found, broken down by defect type.
- Defect rate calculated.
- Photos of defective units.
- Notes on any externally damaged cartons.
- Outcome: accepted, held for resolution, or flagged for return.
Keep this log per batch, per supplier. After a few rounds you will be able to see immediately which suppliers are consistent and which ones have recurring problems.
Photos are non-negotiable. When you send a complaint to a supplier or carrier, no photos means no reason for them to act. Shoot clearly, close enough to identify the defect, and if possible include a photo of the defective unit next to an acceptable reference unit.
Using QC records in supplier conversations
Once you have the documentation, raise it with the supplier the same day or the following day. Waiting weakens your position. After a few days, the supplier can reasonably ask why you are only reporting now.
Your message needs three things: the exact defect count, the defect type, and photos. No need for anger, just clarity. Suppliers on 1688 typically respond in one of two ways: making up the shortage in the next order, or offering a discount on the current one.
Making up numbers in the next order is more common because they want to avoid paying separate shipping for a small replacement batch. A discount or partial refund is a cleaner resolution when the defect rate is low and you prefer simplicity.
One important note: only claim for the units you actually inspected and documented. Do not estimate or extrapolate for the portion you did not inspect. A claim grounded in documented data gets accepted. A claim based on assumptions gets argued.
When to raise the bar on your QC process
The steps above are sufficient for most shops importing small to mid-size lots. Consider going further in these situations:
- Large or high-value lots: hire a third-party inspection service at the China consolidation warehouse before goods ship. The cost is typically modest relative to the shipment value, and catching a problem before export is far cheaper than dealing with it after the goods land in Vietnam.
- Technical or safety-critical products: electronics, children's goods, and powered household appliances need inspection against specific technical criteria, not just a visual pass.
- Suppliers with a consistent defect history: if defect rates run above 3 to 5 percent across multiple batches, the right move is reconsidering the source, not continuing to file complaints.
Bottom line
A proper receiving inspection does not take as long as it sounds once you have a form ready and a clear process. In return, it protects you from the three most expensive outcomes: defective goods reaching buyers, disputes you cannot support with evidence, and low-quality suppliers who keep getting reorders because you have no data to compare against. Build the habit once, log it consistently, and you have a supplier scorecard that writes itself over time.