The customer signed the sample, then WeChat says "color slightly deeper." Mass production follows the first version; the customer rejects. Claims grow from the sample-to-bulk gap: no spec version, no change lock. Sample-to-bulk should generate a locked spec pack—dimensions, materials, color, packaging, inspection standards—production recognizes only this version. Further changes need a new version and lead-time/price assessment.
Verbal changes are convenient for the customer; for the factory they are unpriced risk.
Lock Version at Bulk Conversion
Approved sample attachments enter the spec pack with a number. Bulk work orders, procurement, and quality sampling reference the same number. Any "slight" change goes through a change order—customer written confirmation before BOM or process changes. No locked version, no production order.
- Color and material keep physical samples or spectral/batch numbers—not adjectives alone.
- Packaging marks lock with the sample—wrong bulk marks claim too.
- Change records reach documentation and customer service—avoid L/C vs physical split.

Version Is the Guardrail
The XYN digital intelligence system binds sample specs and bulk work orders to one version—changes traceable. Claims drop not because customers got easier—because the gap was sealed. Sealing costs far less than one downgraded container.
Pick three recent bulk orders—can you point to the sample version number? If not, the claim door is still open.
