Is your brand ready to scale?
Take the 2-minute quiz →If your Facebook ads still optimize on ‘messages’ while you sell panjabi on COD, CAPI is not optional in 2026 — it is how purchase events survive ad blockers and iOS restrictions.
Answer-first
Meta CAPI sends server-side purchase events from your Node.js checkout to Facebook — deduplicated with browser Pixel — so campaigns optimize on real orders, not inbox replies.
What is Meta CAPI?
Direct answer
Conversions API (CAPI) is Meta’s server-side event pipe — your backend fires Purchase/AddToCart with order ID, value, and hashed phone/email while the browser Pixel fires the same event_id for deduplication.
2026 setup checklist for Bangladesh stores
Direct answer
You need: owned checkout URL, Meta Pixel on storefront, access token + pixel ID in server env, purchase event on order create (or your chosen policy), test events in Events Manager, then switch campaigns to Purchase optimization.
- Create system user + long-lived token in Business Manager
- Fire server Purchase with event_id matching browser
- Validate in Test Events before scaling budget
- Document COD vs prepaid event timing — pick one policy
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