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MyCNBox: How to Build a Database of Trusted Sellers

2026-01-13

Navigating online marketplaces can be risky. The key to consistent, satisfying purchases is systematic evaluation. Using your MyCNBox spreadsheet to track seller performance transforms subjective impressions into objective data, helping you build a personal database of reliable stores over time.

Why Track Seller Performance?

A structured tracking system helps you:

  • Avoid repeat disappointments
  • Identify consistently excellent sellers
  • Make informed decisions
  • Save money and time

Key Metrics to Record in Your Spreadsheet

Create columns for these critical data points in your MyCNBox sheet:

1. Quality Control (QC) Score

After receiving an item, rate its quality on a consistent scale (e.g., 1-5 or 1-10).

ScoreCriteria
9-10Exceeds expectations, flawless.
7-8As described, minor unnoticeable flaws.
5-6Acceptable but with clear defects.
3-4Poor quality, significant issues.
1-2Completely defective or wrong item.

2. Refund / Issue Rate

Track how often transactions with this seller require a refund, partial refund, or major dispute. Calculate as a percentage (e.g., Issues / Total Orders). A seller with 2 issues out of 10 orders has a 20% issue rate.

3. Communication Notes

This qualitative data is crucial. Record details like:

  • Response Speed:
  • Helpfulness:
  • Language Proficiency:
  • Proactivity:

4. Additional Data Points

  • Store Name & Platform:
  • Order Date & Item:
  • Shipping Speed:
  • Overall Rating:

The Evaluation Workflow

  1. Post-Purchase:
  2. During QC:
  3. If Issues Arise:
  4. Finalize Entry:
  5. Review Before Ordering:

Sample Spreadsheet Entry

Store Item Date QC Score Issues Comms Notes Overall
GadgetPro Bluetooth Speaker 2023-10-15 9/10 0% (0/1) Fast replies, friendly. A
FashionHub Winter Jacket 2023-11-02 4/10 100% (1/1) Slow, argued about refund. Needed platform intervention. D

Building Reliability Over Time

By diligently updating your MyCNBox