When the goods are packed and the balance payment is due, a vague “quality is okay” message is not enough.
A pre-shipment inspection (PSI) is a final quality checkpoint near the end of an order. It lets the buyer review evidence about the finished lot, including product conformity, visible workmanship, quantity, packaging, and markings before shipment. It is not a guarantee that every unit is perfect, and it does not replace testing or earlier production controls. But when the inspection scope is tied to the released product standard, it gives the buyer a better basis for the next decision.
QIMA describes PSI as an on-site inspection of randomly selected units from batches near production completion, typically when an order is 80–100% complete. 1 TÜV SÜD describes final random inspection of a complete and packed consignment against samples, specifications, and agreed criteria. 2
Set the inspection readiness rule before you book it
A final inspection is only useful when it examines the lot you actually intend to ship. If much of the order is unfinished, unpacked, or stored elsewhere, the report may not represent the final shipment scope.
Agree the readiness rule with the supplier and inspection provider before the visit. QIMA states that its PSI takes place near completion and that its procedure includes finished and packed quantity verification, while TÜV SÜD describes final random inspection when the consignment is complete and packed. 1 2
| Readiness question | What to confirm |
|---|---|
| What is the total order quantity? | SKU, style, color, size, assortment, and unit count expected |
| What is finished? | Quantity complete, packed, unpacked, rework-pending, or still in production |
| Where is it located? | Factory, warehouse, third-party site, or separate packing area |
| Is final packaging available? | Unit pack, insert, label, retail packaging, carton, and shipping mark status |
| Which revision applies? | Current product specification, artwork, packaging, and approved-reference identifiers |
| Is the shipment scope fixed? | Whether the inspected lot is the lot planned for dispatch |
| What access is needed? | Finished goods, cartons, samples, documents, test equipment, and factory contacts |
Do not ask the inspector to create a pass/fail conclusion for an undefined shipment. Ask for a clear statement of what was available and what was not available at the inspection time.
Send one controlled inspection package
The inspector needs the same product definition the supplier was supposed to follow. A final inspection cannot resolve an argument between an old drawing, a new packaging file, and an unrecorded chat instruction.
| Document or reference | Why the inspector needs it |
|---|---|
| Purchase order and order breakdown | Verifies quantity, assortment, style, color, size, and destination scope |
| Product specification | Defines material, dimensions, construction, function, and other agreed requirements |
| Current drawings, BOM, artwork, and packaging files | Identifies the current manufacturing and print revision |
| Approved sample or other physical reference | Gives a comparison point for appearance, finish, construction, and details |
| Product inspection checklist | Translates requirements into observable checks and report fields |
| Defect or acceptance standard | Tells the inspector what should be classified, reported, or escalated |
| Required product-specific checks | Identifies functions, measurements, barcode checks, or other agreed observations |
| Packaging and carton requirements | Defines unit pack, inner/outer carton, markings, count, and protective materials |
| Reporting and escalation instruction | Identifies required photos, issue notification, contacts, and action timeline |
Use How to Create a Product Inspection Checklist Before Production Starts to set the product checks, and use How to Manage Product Revisions Without Losing Control of the Quote to resolve any revision discrepancy before the inspection visit.
Verify quantity and assortment first
A PSI should not focus only on the individual unit. Confirm whether the planned shipment contains the intended total quantity, product mix, and packing configuration.
QIMA describes carton counting and verification of shipping quantities as part of PSI activity. 1 QIMA’s procedure also lists quantity verification of finished and packed products/cartons. 3
| Quantity check | Evidence to collect |
|---|---|
| Finished-unit count | Count record by SKU/style/color/size or other order breakdown |
| Carton count | Carton tally, carton range, and visible carton identification |
| Assortment and pack-out | Units per inner/outer carton, mixed assortment, insert, and component count |
| Unfinished or unpacked goods | Separate statement of quantity, location, and status |
| Rework or hold stock | Identification and location so it is not mixed with released goods |
| Destination or shipment mark | Confirmation that relevant carton/label information matches the released instruction |
If the report shows a quantity gap, do not treat it as a minor formatting issue. Determine whether the gap affects the shipment, whether the goods are still incomplete, and what evidence will confirm the final scope.
Check product conformity against the current release
A final inspection should compare the product with the released product definition and reference, not with an inspector’s personal idea of what looks acceptable.
TÜV SÜD lists type identification, product conformity, function, marking, unit completeness, quality, quantity, packaging, and agreed specification among possible PSI criteria. 2 QIMA lists dimensions, materials, construction, colors, labeling, and overall appearance among common checks. 1
| Conformity area | Questions to answer |
|---|---|
| Product identity | Is the correct SKU, style, color, size, model, and version present? |
| Appearance and workmanship | Are visible finish, assembly, construction, and cosmetic conditions consistent with the agreed reference? |
| Dimensions and physical requirements | Are the specified checks performed using the stated method and reference where applicable? |
| Materials/components | Do visible components and supplied records match the released information within the inspection scope? |
| Function | Are the requested functional checks performed and recorded under the agreed conditions? |
| Labels, artwork, and marking | Do content, placement, readability, language/version, and positioning match released files? |
| Unit completeness | Are required accessories, inserts, manuals, labels, and components included? |
Do not claim that an on-site observation proves a specialist material, performance, safety, or regulatory requirement. QIMA states that many safety tests need laboratory testing even though selected on-site checks may be available. 3 Keep laboratory reports and other required evidence as separate release controls.
Review workmanship and visible defects with defined language
Defect reporting is most useful when it captures what was found, where it was found, how often it appeared in the inspected sample, and which buyer-defined classification or action rule applies.
| Defect record field | What it prevents |
|---|---|
| Product/SKU and revision | Confusion across styles, versions, or product changes |
| Defect description | Vague labels such as “bad quality” |
| Location and product stage | Unclear source or affected product area |
| Photo or comparison evidence | Arguments over what was observed |
| Count or occurrence record | A report with examples but no indication of pattern |
| Buyer-defined classification | The inspector choosing an acceptance standard without instruction |
| Containment or follow-up status | A known issue disappearing from the release decision |
QIMA notes that visible workmanship defects may be classified by severity under predetermined tolerance levels. 1 This article does not set those levels. See the later guide on defect standards for the process of defining them with the supplier.
Inspect packaging, labeling, and carton readiness
The product may be acceptable but still arrive damaged, misidentified, or incomplete because the packaging and packing instruction did not carry through to the final lot.
| Packaging area | What to check against the release |
|---|---|
| Unit packaging | Correct material, protection, seal/closure, label, insert, and presentation |
| Inner packing | Correct quantity, arrangement, protective items, and component separation |
| Outer carton | Carton type, condition, dimensions/weight if required, tape/closure, and protection |
| Carton marks | Product, destination, quantity, handling marks, and version-specific information |
| Barcode/QR/printed information | Correct current artwork, content, legibility, and placement within the agreed inspection scope |
| Pack-out | Unit count, assortment, pallet/loading instruction if applicable, and consistency across cartons |
QIMA includes unit packing, inner/outer packing, export carton dimensions/weights, and shipping marks in its PSI check scope. 1 Its PSI procedure likewise lists inner/outer packaging, export carton markings, dimensions, and weights. 3
For packaging file control, use Packaging Dielines and Artwork: What to Send Your Supplier. The final inspection should confirm the released files were used, not create a new artwork approval on the factory floor.
Define sampling and acceptance before the report arrives
A final inspection commonly uses selected samples, but the sampling procedure and acceptance rule need to be agreed for the product and order. QIMA and TÜV SÜD both describe use of random or statistical sample selection, including ISO 2859-1 in their own procedures. 1 2
The buyer should state:
- The sampling plan or inspection instruction agreed for this order.
- The defect classifications and acceptance rule that apply.
- Any 100% verification required for a critical feature, document, unit, or package condition.
- The additional checks required for each SKU, style, or product group.
- Who decides the shipment action when results are incomplete, unclear, or outside the agreed rule.
Do not copy sample sizes or acceptance limits from another order without considering product risk, order structure, supplier history, and the agreement for the current order. Article 34 will explain the AQL concepts separately.
Ask for a report that supports a decision
A useful PSI report lets you trace the inspected scope, evidence, exceptions, and unresolved points.
| Report section | What it should show |
|---|---|
| Inspection scope | Site, date, inspector, order, products, quantity, and revision/reference used |
| Availability/quantity | Finished, packed, unpacked, rework, and carton counts |
| Sample/inspection method | The agreed plan or instruction used, without hiding deviations from it |
| Product findings | Conformity, workmanship, dimensions, function, labeling, and unit-completeness results as applicable |
| Packaging findings | Unit pack, cartons, marks, assortment, and pack-out evidence |
| Defects/exceptions | Description, classification/action rule, photos, occurrence record, and affected scope |
| Open issues | Items not available, not checked, unclear, or awaiting separate evidence |
| Supplier response | Immediate containment, explanation, correction proposal, and location of affected goods |
QIMA describes PSI reporting with findings, photos, and defect counts; its procedure states that reports can support a buyer’s decision to accept or reject an order. 3 The final commercial or shipment decision belongs under the buyer’s own agreement and approval process.
Keep the final inspection in its proper place
A PSI is a late-stage quality gate. It can identify visible issues, quantity gaps, packaging problems, and variance from the released requirements before dispatch. It cannot prove that every unit meets every requirement, replace laboratory testing, or undo an issue that should have been caught when materials and processes were first introduced.
Use the stages together. Pre-Production Inspection: When It Makes Sense and What to Check helps with early readiness. Production Quality Checkpoints: A Factory Monitoring Plan helps catch issues while production is active. PSI is the final evidence-based check before shipment.
Final PSI checklist
Before a pre-shipment inspection, confirm that you have:
- A defined readiness condition for the finished and packed shipment scope.
- The current purchase order, product revision, supporting documents, and approved reference.
- A quantity/assortment breakdown and an instruction for incomplete or rework stock.
- Product, function, visible quality, labeling, unit-completeness, packaging, and carton checks appropriate to the order.
- An agreed sampling and acceptance instruction—not a copied number from a different product.
- A clear report format with photos, exceptions, open issues, and supplier response.
- A named approval path for the buyer’s shipment and commercial decision.
A good PSI checklist does not make the decision for you. It gives you the evidence to make the decision with fewer assumptions.