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Workflows / States

Fail Workflows

Fail states define explicit failure points within a Step Functions workflow, allowing you to terminate execution with clear intent and meaningful context. This collection of workflows demonstrates how Fail states are used to surface errors, enforce business rules, and stop execution when conditions are not met. You will see how to attach custom error names and causes, making failures easier to trace, debug, and handle downstream. From validation breakdowns to unrecoverable system issues, these examples show how Fail states help you design workflows that are not only resilient, but also transparent when something goes wrong.

48 workflows

Payment Settlement Pipeline

Payment Settlement

End-to-end payment settlement pipeline covering field validation, fraud detection, payment rail authorization, and ledger settlement. Publishes EventBridge events at each major milestone — fraud detected, payment authorized, and settlement complete.

Express Payment Authorization

Payment Settlement

Rapid authorization-only workflow that validates a payment and runs a fraud check before obtaining a payment rail authorization code. Publishes EventBridge events on fraud detection and successful authorization. Does not perform settlement — suited for pre-authorization and holds.

Batch Payment Settlement

Payment Settlement

Processes an array of payments concurrently using a Map state. Each payment is independently validated, fraud-checked, authorized, and settled in parallel. Results are collected into a single batch summary with per-payment status records.

Express Rate Check

Freight Booking

This workflow provides a low-latency express rate quote before a full freight booking is submitted. It checks carrier capacity, calculates indicative rates, and applies a brief Wait for rate propagation before returning a Succeed or Fail terminal state.

Subscription Onboarding

SaaS Subscription Lifecycle

Orchestrates full tenant onboarding — validation, account creation, billing setup, resource provisioning, activation, and SQS welcome notification.

Subscription Cancellation

SaaS Subscription Lifecycle

Handles subscription cancellation by queuing lifecycle and billing-stop events to SQS, with an optional waitForTaskToken async billing confirmation before final billing processing.

Payment Retry Workflow

SaaS Subscription Lifecycle

Processes subscription payments and queues failed payments to an SQS dead-letter queue for async retry. Sends a confirmation event to SQS on success.

Express Trial Activation

SaaS Subscription Lifecycle

Low-latency express path for trial account activation. Validates eligibility, activates a 14-day trial, and sends a welcome event to SQS.

Rag Ingestion Pipeline

RAG Knowledge Base

End-to-end RAG knowledge base ingestion pipeline covering document intake, text extraction and chunking, embedding generation, vector store indexing, retrieval quality validation, catalog update, and stakeholder notification.