Fan-out and retries mean events can arrive out of order — ordering is not guaranteed. The fix is not ordered delivery; it is a receiver that converges on correct state no matter what sequence events show up in. Here is how to build one.
Workflow engines like n8n decide what should happen and when. Delivery guarantees — retries, idempotency, dead-letter handling, replay — are a separate architectural concern. Here's why the two layers work together rather than collapsing into one tool.
Customer integration requests can quietly take over a SaaS roadmap. Here's why integration work compounds, why it is hard to deprioritize, and how teams contain it without stalling the core product.