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    EventBridge:Manage custom event sources

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    EventBridge:Manage custom event sources

    Last Updated:Mar 11, 2026

    Custom event sources connect your applications and third-party services to an EventBridge event bus. Unlike system event sources that are predefined by Alibaba Cloud services, custom event sources represent endpoints you control. After you associate a custom event source with an event bus, your applications can publish events through it to trigger rules and downstream targets.

    This topic describes how to create, view, modify, and delete custom event sources in the EventBridge console.

    Prerequisites

    Before you begin, make sure that you have:

    • An Alibaba Cloud account with EventBridge activated

    • At least one event bus created in your target region

    • The required permissions to manage EventBridge resources

    Create a custom event source

    1. Log on to the EventBridge console.
    2. In the left-side navigation pane, click Event Buses.
    3. In the top navigation bar, select a region.
    4. On the Event Buses page, click the name of the event bus that you want to manage.
    5. In the left-side navigation pane, click Event Sources.
    6. On the Event Source page, click Add Event Source.
    7. In the Add Custom Event Source panel, configure the following parameters:
      Parameter Description
      Name A unique identifier for the event source. The name cannot be changed after creation.
      Description A brief explanation of the event source and its purpose.
      Event Provider The type of event provider. Select the provider that matches where your events originate.
    8. Click OK.

    What to do next

    After you create a custom event source, create an event rule on the same event bus to match and route the events that your applications publish through this source. For more information, see Create an event rule.

    View a custom event source

    1. Log on to the EventBridge console.
    2. In the left-side navigation pane, click Event Buses.
    3. In the top navigation bar, select a region.
    4. On the Event Buses page, click the name of the target event bus.
    5. In the left-side navigation pane, click Event Sources.
    6. On the Event Source page, find the custom event source and click Details in the Operations column.
      The Event Source Details page displays the basic information and configuration of the event source.

    Modify a custom event source

    After creation, only the description field is editable. The name and event provider cannot be changed.

    1. Log on to the EventBridge console.
    2. In the left-side navigation pane, click Event Buses.
    3. In the top navigation bar, select a region.
    4. On the Event Buses page, click the name of the target event bus.
    5. In the left-side navigation pane, click Event Sources.
    6. On the Event Source page, find the custom event source and click Edit in the Operations column.
    7. In the Edit Custom Event Source panel, modify the description and click OK.

    Delete a custom event source

    1. Log on to the EventBridge console.
    2. In the left-side navigation pane, click Event Buses.
    3. In the top navigation bar, select a region.
    4. On the Event Buses page, click the name of the target event bus.
    5. In the left-side navigation pane, click Event Sources.
    6. On the Event Sources page, find the custom event source and click Delete in the Operations column.
    7. Read the Note message and click OK.
      Warning After you delete an event source, the data in the event source cannot be restored.