Proving a Vendor's "3 Billion Coupons Delivered" Claim: A Practical Verification Playbook

https://www.romeo-bookmarks.win/designing-multi-brand-apis-why-multi-tenancy-decoupling-and-api-first-matter

When a Promotions Lead Questions a Vendor's "3 Billion Coupons" Claim: Raj's Story Raj heads promotions for a regional grocery chain. He gets an email from a vendor boasting "3 billion coupons delivered" over the past five years