What is tenant-scoped event delivery?

In a multi-tenant SaaS product, many customers share the same platform. Tenant-scoped event delivery means that, even on shared infrastructure, every piece of the delivery pipeline is partitioned by tenant: an event belongs to one tenant, a destination configuration belongs to one tenant, a credential belongs to one tenant, and the delivery logs and replay actions are visible only within that tenant.

The scope is enforced everywhere it matters, at the API that accepts and configures, and at the storage that holds events, configuration, and secrets. A query, a read, or a write in one tenant's context cannot resolve to another tenant's data. Scoping is the property; isolation is what it buys you.

Without tenant scoping, the failure modes are severe. One customer could see another's delivery logs or credentials. A customer's misconfigured or slow destination could consume shared capacity and back up everyone's deliveries. A replay triggered by one customer could re-send another's events. These are not edge cases; they are the default risks of running many customers through one pipeline.

Tenant scoping turns those shared risks into contained ones. A noisy or broken destination affects only its own tenant. A credential is usable only within the tenant that owns it. A customer's view, their events, their destinations, their logs, their replay, stops at their own boundary. That containment is a prerequisite for selling to security-conscious and regulated buyers.

Isolation operates on several dimensions at once. Data isolation keeps each tenant's events, destination configs, and logs separate. Credential isolation scopes each secret to the tenant and destination that own it, stored encrypted at rest. Operational isolation keeps one tenant's delivery backlog or failures from starving another's throughput.

Many products also need a second level of scoping below the tenant: a vendor's own customers, each managing their own destinations. The same principles apply recursively, a sub-tenant sees and controls only its own destinations and deliveries, nested inside the vendor's tenant, never crossing into a sibling.

Pushrail enforces tenant isolation across the delivery path. Events, destinations, credentials, delivery logs, and replay are scoped to the tenant that owns them, and where a vendor exposes destination management to their own customers, that scoping extends to each sub-tenant. Credentials are stored encrypted and used only within the boundary that owns them.

The result is that a customer configures, observes, and replays only their own deliveries, and one customer's mistakes or failures stay contained. For more on the model behind multi-tenant delivery, see the related article below.