Meta Pixel + GTM Lead Tracking

My site is entirely custom-built and already has both a Meta Pixel and a Google Tag Manager container in place, but the two aren’t talking to each other correctly yet. I need the whole tracking stack tightened up so every lead that comes through the site shows up cleanly in Meta Ads, GA4 and GTM.

Here’s what I want done:

• Re-configure the existing Meta Pixel inside GTM, making sure it fires on the right pages and events.
• Build or refine GTM tags, triggers and variables so that a single “Lead” conversion event is captured.
• Push that same event into GA4 as a conversion, with parameters that let me segment by source and campaign.
• Validate everything with real-time testing tools, browser debuggers and the Events Manager diagnostics until there are zero mismatches or duplicates.
• Leave clear naming conventions and short notes inside GTM so future edits are painless.

You can assume full access to the current Pixel, GA4 property and GTM container. Send over one or two links or screenshots of similar setups you’ve completed so I can see how you structure events. Once I can watch a test lead fire in GTM, appear in GA4 within a few minutes and register in Meta Ads after the usual delay, the job is done.