DTC SOPs/Product Quality Control
Operations

Product Quality Control SOP

AY
Anand Yadav · Founder, ReccordSOP
·Last reviewed June 1, 2026

Defective product hits customer, customer complains, you replace and apologize. Multiply by hundreds and your CSAT tanks. The lever is QC at receiving from supplier, before product enters fulfillment. This SOP defines the inspection protocol.

Who needs this SOP

DTC brands manufacturing or sourcing physical product. Critical for soft launches and new SKUs.

Why this matters

A 2 percent defect rate sounds small. On 10K orders that's 200 angry customers, 200 replacement shipments, 200 chances to lose them. Catching at QC instead of post-ship costs you the inspection time and saves all of that.

Step-by-step SOP

  1. 1

    Set sample size based on AQL standards

    Lot of 1000 units, inspect 80. Lot of 10,000 inspect 200. AQL 2.5 standard for general defects.

  2. 2

    Define critical defects clearly

    Functional failure (product doesn't work), safety issue, brand-damaging visible defect. Reject lot if any critical defect found.

  3. 3

    Define major defects

    Visible cosmetic issues, mislabeling, packaging damage. Reject lot if rate above 4 percent of sample.

  4. 4

    Define minor defects

    Small cosmetic that customer probably won't notice. Acceptable rate up to 10 percent of sample.

  5. 5

    Document each sample inspection with photos

    Evidence for supplier credit if rejected.

  6. 6

    Calculate defect rates by category

    Critical, major, minor. Pattern over time per supplier.

  7. 7

    Trigger supplier feedback for repeat issues

    Same defect type 3 months in a row = supplier conversation.

  8. 8

    Quarantine rejected lots

    Don't ship rejected product. Separate physical location until disposition (return to supplier, scrap, outlet).

Tools involved

Common mistakes to avoid

  • ×Skipping QC on repeat orders from trusted suppliers (quality drifts invisibly)
  • ×Sample size too small (50 units of a 1000-unit lot misses pattern issues)
  • ×No defect categorization (every defect treated same severity)
  • ×Not documenting with photos (lose evidence for supplier disputes)
  • ×Not feeding patterns to supplier (defects continue forever)

Make this SOP a living document

Record your screen while running this procedure. ReccordSOP captures every step with screenshots, then alerts you when the actual process drifts from documentation.

Try ReccordSOP free

FAQ

What's an acceptable defect rate?

Critical: 0 percent. Major: under 2.5 percent. Minor: under 4 percent. Brand-specific based on product type.

Who pays for rejected lots?

Supplier should refund or replace defective lots. Document in contract upfront.

Do I need to QC every shipment from same supplier?

First 3 shipments yes. After that, reduce sample size if quality is consistent. Resume full QC if defects appear.

AY
Anand YadavFounder, ReccordSOP

I built ReccordSOP after watching too many DTC ops teams lose months to undocumented workflows. These SOPs are battle-tested with Shopify operators running $1M to $50M brands.

Last reviewed June 1, 2026

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