Topics
Topics function as channels where producers can publish messages and consumers can subscribe to receive those messages.
Overview
Typically, topics will be organized by the application and business event (for example, Workday Employees or Salesforce Accounts). All messages stored within a topic are persistent and durably stored on disk until they are acknowledged by all of the consumers.
Unacknowledged messages are retained for 14 days before they are removed from the topic.

Creating Topics
To create a new topic, perform the following steps:
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Navigate to Services > Event Streams.
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Click the Topics page.
noteYou can also create a topic by clicking on the environment where you will place the topic.
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Click Create a Topic
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Complete the following fields:
a. Name
b. Environment - Select from the dropdown menu of available environments.
c. Description (optional) -
Click Save to finish creating a topic.

Topics can also be automatically created by the Boomi Connector. For more information, check out Boomi Event Streams Operations.