June 2026 Summaries

Webhook traffic can be unpredictable and uneven, often leading to issues in systems handling multiple tenants, such as eCommerce apps or SaaS connectors, where one tenant's burst of activity can cause delays for others. A notable example involved a Shopify store sending 30 million events in a short period, resulting in significant backlogs for other stores. Existing solutions like waiting it out, terminating the noisy tenant, or building custom per-tenant queuing systems are inadequate. Delivery Groups, a new feature, addresses this by assigning a unique delivery rate to each tenant based on a key extracted from webhook payloads, ensuring fair distribution of resources and preventing one tenant from monopolizing the system. The feature allows setting per-group rate overrides and integrates with Event Gateway for dynamic rate management, reducing delays and enhancing system observability with alerts for queue degradation. Currently in early access, Delivery Groups invite user feedback to refine its approach to solving the multi-tenant fairness challenge.

Webhook traffic can be highly variable and can cause significant delays for other tenants in multi-tenant platforms, as illustrated by a case where a single Shopify store sent 30 million events in five minutes, clogging the queue for others. Traditionally, solutions to this "noisy neighbor" problem have been inadequate, either requiring substantial infrastructure overhead or being incompatible with webhook delivery paths. Fair Delivery Groups, however, offer a managed solution by allowing users to set rate limits for each tenant using a key extracted from the webhook payload, thereby distributing events more evenly and preventing one tenant's traffic surge from affecting others. By creating individual delivery groups for each tenant, the system ensures that each tenant's events are delivered at their own rate, allowing for smooth operation even during traffic spikes. Additional features include the ability to handle per-group rate overrides for VIP or noisy tenants, comprehensive observability, and backpressure notifications, which collectively enhance the management and reliability of webhook deliveries in multi-tenant environments. This solution is now in early access, inviting user feedback to refine the approach further.

The May 2026 roundup highlights several key developments and integrations in the realm of webhooks and event management. Notably, Fair Delivery Groups has been introduced in early access as a solution to the "noisy neighbor" problem, allowing for per-tenant webhook delivery rates to prevent backlog issues. A new integration with Incident.io offers real-time monitoring of webhook issues, enhancing incident management workflows. The "Webhooks by Example" series launched with a focus on practical implementations, featuring insights from Knock. Shopify's Next Generation Events developer preview marks a significant change in how developers interact with event triggers, prompting a migration guide to assist with the transition. Webhook delivery has expanded to include Anthropic's Claude and Google's Gemini, alongside existing support for OpenAI, with new source types added to Event Gateway. Additionally, Outpost released several updates aimed at improving production reliability, including a mobile-responsive portal and contributions from new developers.