Meta API and CRM Integration

I need a clean, reliable bridge between the Meta Marketing/Conversions API and my current CRM (it’s a proprietary platform, not Salesforce, HubSpot, or Zoho). The main objective is sharper customer targeting inside Meta Ads by syncing two data sets from the CRM—demographic fields and key behavioural events—into custom audiences.

Here is what the work involves:
• Map and push demographic and behavioural data from the CRM to Meta via the Marketing or Conversions API, ensuring every user record stays hashed and privacy-compliant.
• Configure the flow so updates in the CRM propagate to Meta in near-real-time (webhooks or scheduled jobs are fine as long as latency stays low).
• Validate that audiences created with the synced data are recognised by Meta Ads Manager and can be segmented, excluded, or expanded without errors.
• Document the integration steps and deliver source code or low-code scripts so future tweaks are straightforward for an in-house dev.

Acceptance will be based on a test campaign that shows the new, CRM-fed audience populating correctly and matching rates inside Meta’s diagnostics above 90%.