VDA 6.3 Potential Analysis: Guide
How the potential analysis works, when to use it instead of the full process audit, and how the traffic light system supports supplier decisions.
What is the VDA 6.3 Potential Analysis?
The VDA 6.3 Potential Analysis (P1) is a pre-qualification check used before a new supplier enters series delivery, or before an existing supplier takes on a new product. It does not evaluate whether a process is already running - it assesses whether the company has the potential to reliably build and operate the required processes.
The potential analysis is shorter and less demanding than a full VDA 6.3 process audit because no series process yet exists to evaluate. The focus is instead on: management system, technical competence, capacity, personnel qualification, financial strength, and the ability to execute a structured product development process. The result is a risk assessment: is this supplier an acceptable risk for our supply chain?
When is the potential analysis used?
Typical triggers: a new supplier is added to the Approved Supplier List, an existing supplier is assigned a new product program outside their established competence, a supplier is being reactivated after a period of inactivity, or a supplier from a new sourcing region is being evaluated. In many OEM procurement guidelines, the potential analysis is mandatory before the first PPAP approval.
Why the potential analysis prevents bad decisions
Supplier decisions based on data sheets and self-declaration are risky. The structured potential analysis provides objective decision-making input.
Risk-based supplier selection instead of gut feel
The potential analysis quantifies risks invisible during the quoting phase: QMS maturity, availability of qualified specialists, capacity reserves, experience with OEM-specific core tools. A yellow or red result before contract signing is worth more than a C rating after launch.
Early definition of development requirements
The potential analysis identifies not just whether a supplier is suitable, but where targeted development actions are needed. These can become part of the supply contract: the supplier commits to defined improvements as a condition for nomination.
Objectifying the purchasing decision
Buyers make supplier decisions under price pressure. The potential analysis delivers quality risk as a quantified unit that feeds into the total cost of ownership calculation. A cheap supplier with a red potential rating is more expensive than a more costly one with a green rating.
Compliance with OEM procurement guidelines
Many OEM procurement guidelines explicitly require potential analyses for new suppliers. Documented execution protects procurement in the event of later delivery problems and is part of supplier qualification documentation for external audits.
Comparability across suppliers and regions
Whether a supplier is in Bavaria, Poland, or China - the VDA 6.3 P1 scoring scheme is uniform. Supplier quality engineers can compare results from different auditors without concerns about subjective bias.
Foundation for the development plan in APQP
Identified gaps from the potential analysis feed directly into the APQP plan. Weaknesses in the supplier's process development capability require increased SQE involvement in the early APQP phases.
Potential analysis vs. full process audit
The decisive difference lies in the subject of evaluation. The potential analysis (P1) assesses prerequisites and capabilities - it looks at the management system, technical equipment, personnel, and process competence of the company, without a specific series process yet existing. The full VDA 6.3 process audit (P2-P7) evaluates the actual series process based on concrete process parameters, control plans, FMEAs, and measurement results.
In practice, the potential analysis follows a different timeline: it takes place before nomination, while the full process audit is conducted before or shortly after series launch. A typical supplier qualification sequence: potential analysis (P1) before nomination, SQE support during APQP, process audit (P2-P7) before PPAP, re-audit after 12-24 months in series. Both instruments are not alternatives - they are complementary tools used at different points in time.
Conducting a potential analysis in a structured way
From scheduling to the final report - this is how a professional VDA 6.3 potential analysis is conducted.
Clarify scope and trigger
Define clearly why the potential analysis is being conducted: new supplier, new product, reactivation? Which product range and manufacturing processes are relevant? This clarity determines which question areas need to be assessed in greater depth.
Request documents in advance
Before the on-site visit, request: certificates (IATF 16949, ISO 9001, industry-specific), quality metrics from the last 12 months (PPM, complaint rate), org chart and qualification evidence for key personnel, list of key customers with OEM references, equipment inventory and calibration records. Document analysis saves time on-site and focuses the walkthrough.
On-site: management interview
Begin with a structured interview with management and quality leadership. Objectives: understand quality policy and goals, assess resource planning, gauge commitment to OEM requirements. Vague answers to specific questions are themselves a scoring point.
Process walkthrough and resource assessment
Walk through the relevant production areas. Look for: cleanliness and organization (5S maturity), availability and condition of measuring equipment, qualification evidence at workstations, handling of nonconforming parts, labeling and traceability. What you see is more telling than any documentation.
Scoring with the traffic light system
Each question group is rated green (fulfilled), yellow (conditionally fulfilled, development needed), or red (not fulfilled, knockout criterion). The overall result is a combination of individual ratings. A single red result on a knockout criterion leads to an overall red rating - regardless of all other results.
Closing meeting, report, and recommendation
Present results transparently in the closing meeting. The written report contains: overall rating (red/yellow/green) with rationale, list of all gaps with prioritization, a concrete recommendation (approval, conditional approval, no approval), and any conditions for nomination (development plan with deadlines).
Common mistakes in the potential analysis - and how to avoid them
The potential analysis is often treated as a formality. These four mistakes cost time, money, and nerves later.
Potential analysis as a box-ticking exercise with no real consequences
If a supplier is nominated despite a yellow or red rating because the price is right, the instrument loses its value. Anchor the potential analysis as a binding decision input in the procurement policy. Exceptions must be approved by management - not by the buyer alone.
Evaluation based on documents rather than observation
Certificates and manuals say nothing about what actually happens on the shop floor. The potential analysis requires an on-site walkthrough. What is on paper and what is lived in production often diverge significantly. Auditors who skip the factory walkthrough systematically underestimate risk.
No follow-up on conditional development requirements
Yellow ratings with conditions are only useful if the conditions are actually followed up. Define clear milestones - who does what by when - and schedule a re-audit or evidence review. Without follow-up, the yellow rating is effectively a green approval.
No alignment between potential analysis and the later process audit
Findings from the potential analysis should feed into the subsequent VDA 6.3 process audit. Areas rated weak in the potential analysis require special attention in the process audit. A digital system linking both audits makes this connection visible automatically.
Potential analyses - digital and standardized
Manual potential analyses with Word templates and email attachments are error-prone and not analyzable. Mobile2b digitizes the entire process - from pre-documentation to the supplier dashboard.
Digital P1 questionnaire with traffic light scoring
The VDA 6.3 P1 questionnaire is fully digitized. Traffic light scoring (red/yellow/green) with automatic knockout criteria logic. The overall result is calculated automatically, degradation rules applied automatically.
Document management before the on-site visit
Suppliers can upload documents in advance (certificates, quality metrics, org charts). The auditor sees all documents structured before the on-site visit. Missing documents are directly flaggable as findings.
Development requirements with automatic deadline monitoring
Every yellow or red rating automatically generates a development action with owner and deadline. Reminders go automatically to the supplier and SQE. Re-audit dates are proposed and tracked.
Link to the subsequent process audit
Findings from the potential analysis are visible in the later process audit (P2-P7). SQEs see at a glance which areas scored weak in the potential analysis and where to focus in the process audit.
Frequently asked questions about the VDA 6.3 potential analysis
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