Set up and validate Splunk HTTP Event Collector (HEC), explain indexer acknowledgment and distributed HEC behavior, diagnose HEC no-data and HTTP delivery failures from sanitized evidence, and prepare bounded escalation handoffs. Use for Splunk Cloud Platform or Splunk Enterprise HEC tokens, endpoints, event or raw payloads, TLS, channels, ACK, health, authorization, queues, and delivery verification; do not use for non-HEC ingestion, broad architecture, allowlist changes, or service-side remediation.
