---
title: "How we built it: Running Replay on Temporal"
url: https://daily.dev/posts/how-we-built-it-running-replay-on-temporal-pluhtin3a
source_url: https://temporal.io/blog/how-we-built-it-running-replay-on-temporal
type: article
source: "Temporal"
published: 2026-08-06T10:37:27.707Z
updated: 2026-08-06T10:41:27.413Z
tags: ["architecture", "ecommerce", "distributed-systems", "workflow-orchestration"]
reading_time: 13
upvotes: 0
comments: 0
language: en
---

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# How we built it: Running Replay on Temporal

**[Temporal](https://daily.dev/sources/temporal)** · 13 min read · 0 upvotes · 0 comments

## Summary

A Temporal engineer shares how they built a custom conference registration system for Replay 2026 using Temporal Workflows and Activities. The system handled payments, coupons, ticket management, email notifications, and check-in across a months-long lifecycle. Key architectural decisions included treating each order as a durable process (Order Workflow) and giving every ticket its own child Workflow, enabling independent state management per attendee. Activities encapsulated all external calls (payment processor, email, database) with configurable retry/backoff policies, eliminating custom retry logic. The post covers coupon validation, idempotent payments, live-updating ticket counts via a long-running stats Workflow, and Workflow versioning for in-flight changes. It also previews new Temporal features like Standalone Activities and Serverless Workers that will simplify future iterations.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://temporal.io/blog/how-we-built-it-running-replay-on-temporal>

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---

Tags: [#architecture](https://daily.dev/tags/architecture), [#ecommerce](https://daily.dev/tags/ecommerce), [#distributed-systems](https://daily.dev/tags/distributed-systems), [#workflow-orchestration](https://daily.dev/tags/workflow-orchestration)

[View this post on daily.dev](https://daily.dev/posts/how-we-built-it-running-replay-on-temporal-pluhtin3a)