BM138 is a server-side tracking platform designed to route website and Google Tag Manager events to Meta Conversions API and TikTok Events API. Its backend focuses on accurate, controlled conversion delivery, with ads-only filtering that accepts events associated with advertising click signals: fbclid for Meta and ttclid for TikTok. Events can be validated, routed to projects and connected pixel destinations, and checked for duplicates before delivery.

The platform provides a dashboard for real-time event monitoring, analytics, delivery logs, and status reporting, including sent, skipped, and failed events. Users can review performance by project, platform, event type, device, and time period, and export event data for auditing. BM138 also supports event mapping, project and destination management, and GTM setup through API keys and copy-ready integration guidance.

For operational security, the system offers user roles and Google Authenticator two-factor authentication. Its tools are intended to help teams manage conversion data flows and monitor delivery to Meta and TikTok from a single backend.