For consistent product quality, tracking your suppliers' performance over time is not just helpful—it's essential. The EastMallBuy Spreadsheet
Start by structuring your EastMallBuy QC spreadsheet with the following core columns for each order batch: Focus on these trends over a rolling 3-6 month period to get a clear picture of supplier reliability. Chart each supplier's monthly pass rate. A steady or upward green linedownward red trend
Calculate the average pass rateconsistency—a supplier with a 95% average that fluctuates between 85% and 100% is riskier than one steadily holding at 94%. Go beyond the pass rate. Are "major defects" increasing? Tracking the type and severity
Your analysis should directly inform your sourcing strategy:Setting Up Your Spreadsheet for Success
Key Metrics to Track & Analyze
1. Monthly Pass Rate Trend Line
2. Average Pass Rate & Consistency
3. Defect Severity Pattern Analysis
Translating Data into Actionable Insights
Trend Observed
Potential Insight & Action
Consistent High Pass Rate (>98%)
This is your Most Dependable Supplier. Consider strengthening the partnership, prioritizing them for new products, and negotiating based on reliable quality.
Gradual Decline in Pass Rate
Initiate a corrective conversation. Share the data, ask for their root cause analysis, and set clear improvement targets for the next shipment.
High Volatility (Unstable Rates)
Indicates unpredictable risk. For critical items, seek a more stable supplier. For non-critical, you may continue but with stricter batch-by-batch inspection.
Consistently Low Pass Rate
Time to qualify a replacement supplier. The cost of defects and delays likely outweighs any lower unit cost this vendor offers.
Pro Tips for Effective Monitoring
EastMallBuy: A Step-by-Step Guide to Analyzing QC Trends
2025-12-17