How to Use Meta Test Events (and Why Nothing Shows Up)
Use Test Events in Meta Events Manager to check browser and Conversions API events, send test_event_code correctly, and fix the usual empty-screen causes.
Meta Pixel guides
Meta (Facebook) Pixel, Conversions API, Events Manager and Test Events.
Meta Events Manager Diagnostics Warnings Explained and Fixed
Understand Meta Events Manager Diagnostics warnings and fix the common ones: low event match quality, domain issues, deduplication gaps and missing parameters.
Meta Pixel and Conversions API Deduplication: Fix Double Counts
Fix double-counted Meta events when using the Pixel and Conversions API. Match eventID to event_id and event names, respect the 48-hour window, and verify it.
Meta Pixel Firing Twice? How to Find and Remove Duplicate Events
PageView or Purchase firing twice? Find where duplicate Meta Pixel code comes from (theme, app, GTM, extra pixel IDs or double init) and remove it safely.
Meta Pixel Missing Value or Currency? Fix Purchase Parameters
Fix Meta Pixel warnings about missing value or currency on Purchase and AddToCart: send a numeric value and an ISO 4217 code. Includes working fbq examples.
Meta Pixel Not Firing? 8 Common Causes and How to Fix Each
Meta Pixel not firing? Work through the eight usual causes, from missing base code and wrong pixel IDs to consent banners, CSP and GTM triggers, then verify.