> ## Documentation Index
> Fetch the complete documentation index at: https://docs.membrane.agency/llms.txt
> Use this file to discover all available pages before exploring further.

# External Event Subscriptions

External event subscriptions are created when a [Flow](/reference/workspace-elements/flows) has a trigger that reacts to external events and the flow is enabled. Subscription is automatically disabled (and un-subscribed) when there are no more flows that need it.

You can find the list of subscriptions and information about each of them here: [External Event Subscriptions](https://console.integration.app/w/0/deployments/external-event-subscriptions).

Integration engine automatically de-duplicates subscriptions.
If multiple elements need the same subscription, we create only one subscription and share it between them.
For example, if multiple flows subscribe to the same workspace External Event Type with the same parameters, only one subscription will be created.

## Automatic Resubscription

When you update the parameters of an External Event Type subscription, Membrane automatically:

1. Unsubscribes from the existing external event subscription
2. Creates a new external event subscription based on the updated parameters

This ensures your external event subscriptions always stay in sync with your workspace event configuration without requiring manual updates.