Event Log Object - Error Tracking

Project Overview

The Event Log custom object is a technical auditing and diagnostic tool designed to capture and store HTTP POST payloads and response data from our external lead platform integration. By maintaining a granular history of inbound and outbound data and system errors, it provides a robust "paper trail" for all cross-system communications, ensuring data integrity and rapid troubleshooting.

Tools: APEX REST, Sites, Custom Object, Custom Fields, Custom Page Layout, Custom Metadata, Tokenization

Business Need

Our integration with the external lead platform was originally a "black box," making it nearly impossible to diagnose why certain lead data failed to update or why data was mismatched. We needed a way to capture the raw JSON/XML payloads before they were processed by Salesforce logic. Without this, the technical team spent excessive time on manual "reproduction" of errors, and the business risked losing valuable lead data or having mismatched data between platforms due to silent integration failures.

Solution

We developed a custom Event Log object that acts as a middleware buffer and historical archive. Every time the integration endpoint is hit, the system immediately generates an Event Log record containing the full request body, timestamps, and the source. This object allows us to decouple the receipt of data from the processing of data, providing a permanent record that exists even if the lead record itself fails to create or update.

How It Works

The system uses Apex REST architecture to parse the incoming and outgoing HTTP POST. Before any business logic is executed, a Event Log record is created with the raw payload stored in a Long Text Area field along with the event type, direction, datetime stamp, and message id. If the integration succeeds, the log is updated with a "Success" status. If it fails, the system captures the specific Error Code and Stack Trace in the log. This allows administrators to use List Views and Reports to monitor integration health and troubleshoot in real-time.

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