Meta Web CAPI
Meta Web CAPI, verified by Meta, live in 15 minutes.
Datahash is a Meta Business Partner. We set up Meta Conversions API on your website server-side, deduped with your existing Meta Pixel, hashed and privacy-safe.
- ● meta.web_capi :: live
- > event Purchase value=4,999 INR
- hash sha256(em,ph,fbp) emq=8.2
- dedupe event_id vs pixel matched
- ✓ delivered · events_received 1
WHAT THIS ENABLES
Meta Web CAPI
Meta Web CAPI is the server-side delivery of your website conversion events to Meta's Conversions API, deduplicated against the Meta Pixel on event_id, so browser-blocked conversions still reach optimization with hashed first-party identifiers.
- Purchases that Safari and iOS drop from the pixel still reach Meta and count toward campaign optimization.
- Event Match Quality high enough for value-based bidding to read your website signal reliably.
- A single server-side feed that keeps measuring when a browser blocks the pixel outright.
Built for the teams that own the number.
Retail, D2C, BFSI, subscription, streaming, travel, auto, real estate, EdTech, telco, and many more. If your website has an action worth measuring, it fits.
From kickoff to verified events.
-
Discover
Pixel audit, event map, EMQ baseline.
-
Configure
sGTM or Datahash server, dedupe on event_id, PII hashing.
-
Verify
Live event debugger against Meta Events Manager.
-
Optimize
EMQ improvements, IPv6 handling, user data enhancements.
WHAT FLOWS WHERE
One use case, every source.
A purchase fires on your website, Signals hashes the identifiers and deduplicates on event_id, then posts the event to Meta's Conversions API server-side.
A purchase fires on your website, Signals hashes the identifiers and deduplicates on event_id, then posts the event to Meta's Conversions API server-side.
What ships with this offering.
Deduped pixel plus CAPI.
Improved EMQ scores.
Higher optimization signal.
Full audit trail per event.
ON THE WIRE
What the platform actually receives.
Identifiers are hashed with SHA-256 at source. The payload the destination sees never contains raw PII.
- ● signals :: event payload
- > POST /{dataset}/events action_source=website
- event_name "Purchase" · event_id "e2f9c1…"
- em sha256 "9b1a4d…" · ph sha256 "7c3e88…" · fbp "fb.1…"
- value 4999 · currency INR
- ✓ events_received 1 · dedupe matched
CASE STUDY
KFC: +5% additional purchases with CAPI plus pixel vs pixel alone.
KFC runs this offering on Signals in production.
- > result kfc
- offering meta web capi
- metric +5% additional purchases with CAPI plus pixel vs pixel alone.
- ✓ measured in production
Adjacent moves on the same stack.
meta
Meta Offline CAPI
Datahash ingests offline transactions from your POS, CRM, or warehouse and routes them to Meta with hashed identifiers, event dedupe, and closed-loop match reporting.
Learn moremeta
Meta CAPI for CRM
Datahash ingests lead status from your CRM and sends Meta the qualified events it needs to optimize on lead value instead of lead volume.
Learn moremeta
Meta Custom Audience
Build and refresh Meta Custom Audiences from your CRM, warehouse, or SingleView, with hashed identifiers and scheduled updates.
Learn moreBring it from where the data lives.
Every source that supports this use case. Pick a platform to see the exact setup.
Custom
Questions your team will ask.
Do we need Meta business admin access?
We need partner access to the pixel and the CAPI dataset, granted from your Meta Business Manager as a Meta Business Partner connection. That access is scoped to what setup and monitoring require, nothing broader, and you can revoke it from your Business Manager at any time without affecting the rest of your ad account.
What EMQ score should we target?
Most purchase events land between 6 and 8 out of 10 on Meta's Event Match Quality scale after setup, driven by hashed email, phone, and browser identifiers like fbp. Datahash baselines your current EMQ during discovery, before any changes, then reports the uplift per event after go-live so you can see exactly what improved and by how much.
Does this work with our CMP?
Yes. Signals reads consent flags directly from your CMP, including OneTrust and Cookiebot, before any event is sent to Meta. Events fire only for the purposes a visitor has actually permitted, whether that is analytics, marketing, or both, and a visitor who declines is excluded from server-side delivery the same way they are excluded from the pixel.
How is billing handled with Meta directly?
There is no Meta-side billing for CAPI itself; Meta does not charge separately for receiving server-side events. You pay Datahash for the integration, setup, and ongoing maintenance, while your Meta ad spend billing stays exactly as it is today, unaffected by adding Web CAPI on top of your existing Pixel.
NEXT STEP
Live in fifteen minutes. Measurable in a week.
Talk to our team of solutions engineers. We map your source data, propose an integration plan, and give you a live setup in the same call where possible.