PLAYBOOK: Coupon schema that actually earns the offer rich result

PLAYBOOK: Coupon schema that actually earns the offer rich result
Confirmed from sites running clean Offer/Discount markup. The implementation checklist most get wrong:
— Use the Offer type with priceValidUntil set to the real expiry, not a rolling fake date
— Mark up only codes you've verified live; schema on a dead code is a quality-mismatch flag
— Don't stuff every page-level code into one Offer block — Google reads code-count mismatches as spam
— Validate in the Rich Results Test after every template change, and re-validate after feed swaps
Why it matters: fake priceValidUntil dates and schema on dead codes are exactly what triggers Google's coupon-spam filters. Honest markup is the eligibility, not a hack. Developing...