Event-driven contact export pipeline integrating SAP Emarsys with AWS using API Gateway, Lambda, and Step Functions orchestration. Webhook triggers initiate a multi-phase workflow: Lambda Handler receives Emarsys events, Step Functions orchestrates export polling with exponential backoff, downloads contact data to Amazon S3, and publishes completion events to Amazon MQ for downstream consumers. This architecture demonstrates asynchronous integration patterns for reliable third-party SaaS data ingestion with retry logic and decoupled event notification. Fork this diagram on Diagrams.so to customize retry policies, add data transformation steps, or integrate additional downstream systems like data warehouses or CRM platforms.