Why map a CAPA form to 8D
Many suppliers keep two records for one problem: a CAPA entry for the auditor and an 8D for the customer. The two drift apart, and the auditor finds a CAPA closed on “retrained operators” while the 8D promised a process change. Using the same structure for both keeps one set of facts and one set of evidence.
This page is the blank form. For how the two processes differ, read CAPA vs 8D. If the customer wants a full 8D report, start from the 8D report template. The form is generic; your own procedure and your customer’s format come first.
What the form covers
| CAPA section | 8D step | What goes in it |
|---|---|---|
| 1. Identification and team | D1 | CAPA no., linked complaint / 8D / audit finding, source, part or process, owner and team |
| 2. Problem and need for action | D2 | The problem as observed, the requirement not met, severity, earlier similar cases, and who decided action is needed and why |
| 3. Correction and containment | D3 | Sorting, stop or replacement: action, owner, dates, quantity checked and found bad, evidence |
| 4. Root cause | D4 | Cause of occurrence and cause of escape, each with how it was verified, and the method used |
| 5. Corrective action | D5 | Actions with owner, due and done dates, evidence, and whether each one addresses occurrence or escape |
| 6. Verification of effectiveness | D6 | Criteria set before implementation, monitoring period, result and data, when containment was removed |
| 7. Preventive action | D7 | Similar products, processes or sites; PFMEA, control plan and work instructions updated; lessons learned. ISO 9001:2015 has no separate preventive-action clause; it is covered by risk-based thinking (6.1). |
| 8. Closure | D8 | Actions done, effectiveness confirmed, customer response if any, closed by and date |
Three fields most CAPA forms leave out
- Need for action: who decided this case needs a corrective action, and why. Auditors often ask for it, and it is easy to show if you write it down when you open the CAPA.
- Cause of escape: why your inspection didn’t catch the defect. 8D asks for it in D4; many CAPA forms only ask for one root cause. See how to write D4.
- Effectiveness criteria set in advance: what result, over what period, counts as effective. Without it, “effective: yes” is an opinion. See D6 verification of effectiveness.
How to fill it in
- Keep containment separate: sorting and stopping shipments go in section 3, not in corrective action.
- Evidence per action: name the record that shows each action was done: a revised setup sheet, a training record, a changed control plan.
- Check for similar cases: section 7 asks where else the same cause could happen. That is the preventive part of CAPA.
- Don’t close early: close only after the effectiveness check in section 6 has a result.
Reviews are paused for now. Check your 8D yourself with the free 21-item PDF checklist.
8D Gate’s AI review is paused for now. The checklist and templates are free to use; your customer’s requirements always come first.
Weak vs strong: a filled example
Illustrative, fictional example from a machining supplier with burrs on a bore:
| Field | Weak | Strong |
|---|---|---|
| Need for action | Yes | Yes: third burr complaint from this customer in six months (CAPA 0412, 0455). Decided by the QM, 3 Oct. |
| Root cause | Worn tool | Occurrence: deburring tool used past its life; no tool-life limit in the setup sheet. Verified: new tool, 200 parts, 0 burrs. Escape: visual check at final inspection without magnification or a limit sample. |
| Corrective action | Operators retrained | Tool-life limit of 5,000 parts added to the setup sheet and machine counter (occurrence). Limit sample and 5x loupe at final inspection (escape). |
| Effectiveness | Done | Criterion: 0 burrs in 10 shipped lots and 0 complaints for 3 months. Result: 10 of 10 lots OK; review date 15 Jan. |
The strong version names the decision, verifies both causes, matches each action to a cause, and sets a measurable check with a date. A reviewer can follow it without calling you.
FAQ
- Can I send this CAPA form to a customer who asked for an 8D?
- Usually not as a replacement. Send the 8D in the customer’s format and link it to your CAPA record. Because this form follows D1–D8, the content carries across. See CAPA vs 8D for the differences.
- Does this form meet ISO 9001, IATF 16949 or ISO 13485?
- No form does that on its own. It has fields for what ISO 9001:2015 clause 10.2 asks a corrective action to show: reacting to the problem, evaluating the need for action, finding causes, checking for similar cases, acting, reviewing effectiveness, updating risks and opportunities or the QMS where needed, and keeping records. Your documented procedure, customer requirements and, for medical devices, ISO 13485 clauses 8.5.2 and 8.5.3 decide what your records must contain. In a regulated setting, check whether a form like this needs to be controlled under your document control.
- What does 8D Gate check?
- 8D Gate’s AI review is paused for now. Meanwhile, use the free 21-item PDF checklist and the free 8D templates to check the report yourself before it goes to the customer. It isn’t a customer decision.
Free pre-send readiness check
Before the 8D goes to the customer, run the text through the free supplier 8D readiness check, or get the free 8D checklist.
Reviews are paused for now. Check your CAPA or 8D yourself with the free 21-item PDF checklist.
8D Gate’s AI review is paused for now. The checklist and templates are free to use; your customer’s requirements always come first.
Get the free 8D / D4 checklist
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