When you add a source to an integration, you are attaching a description of the source data structure and content to the integration. That description, known as the source document definition, exists independently of the integration you are working on. You can use this source again in other integrations.
Be careful when making changes to a source document definition. If it is attached to other integrations, those integrations might not run correctly.
There are additional properties relating to a source that are associated with the individual integration. These properties are not automatically inherited by other integrations that use the same source document definition. These additional properties are called source settings.