posthog-pipeline-diagnosis

PostHog CDP function execution failures occur when destination credentials are invalid, payload formats are rejected, or rate limits are exceeded. Diagnosing these pipeline issues requires inspecting recent execution logs, destination error responses, and authentication configurations to identify the exact rejection cause.

To diagnose PostHog pipeline transformation errors, you must analyze the CDP function's transformation logic against recent execution logs. This surfaces payload validation errors and transformation bugs by comparing the expected output with the actual processed event data and log messages.

Troubleshooting missing events in a PostHog CDP pipeline requires validating event triggers, filter conditions, and project attachments. Checking whether the CDP function is enabled and reviewing invocation logs confirms if events are correctly routed or silently dropped before reaching the destination.

Checking PostHog function execution logs reveals error rates, timeouts, and authentication failures, but does not show the enabled or disabled state. You must also inspect the function configuration and project attachment settings to fully understand why events are not being processed.

Fixing payload validation errors involves checking the destination endpoint requirements against the PostHog function's transformation logic. Inspecting destination error responses and execution logs identifies which payload fields are rejected, allowing you to adjust the formatting or mapping accordingly.

Diagnosing a PostHog pipeline issue requires access to the CDP function configuration, recent execution logs, and destination error responses. You also need repository issue search access to analyze authentication failures, payload validation errors, and rate limiting behaviors effectively.