Core question
Which date controls the warranty?
Answer first
Start with the full cost, key benefit and boundary before deciding.
Separate purchase, installation, invoice and platform-record dates.
Primary cost
After-sales cost
Primary benefit
Repair coverage
Risk level
Low
Evidence note
A
Supported by laws, standards, official statistics or authoritative guidance.
Sources, jurisdiction and timeliness
- 中华人民共和国消费者权益保护法（国家法律法规数据库） 中国官方 · 全国人大常委会 · 中国 · 2013-10-25 · 2026-09-29
- 中华人民共和国产品质量法（国家法律法规数据库） 中国官方 · 全国人大常委会 · 中国 · 2018-12-29 · 2026-09-29
- Jurisdiction
- 中国
- Effective date
- Not registered
- Last reviewed
- 2026-09-29
Registered limitations
- The sources support the repair, replacement, return and warranty framework; the warranty start date still depends on the product type, invoice, installation record and seller commitment.
- Warranty periods and start rules vary by product category and should be checked against the manual and official catalog.
Next action
Do these first, then decide.
Check the registered statutes, jurisdiction and limitations below, then follow the action checklist.
- Check the registered statutes, jurisdiction and limitations below, then follow the action checklist.
- Source jurisdiction: China
- The sources support the repair, replacement, return and warranty framework; the warranty start date still depends on the product type, invoice, installation record and seller commitment.
This decision card provides general decision information and is not legal, medical, financial, tax or other professional advice.