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This section covers connection-specific configuration options (outside of authentication credentials). Salesforce connections, for example, have different settings one can tweak versus, say, Airtable or Zendesk.

> **Note**
>
> Not all connections take extra configuration options.

There are six areas where connection-specific configurations can manifest:

* Outside of Polytomic (for example, configuring your SQL database for [CDC streaming](https://apidocs.polytomic.com/2024-02-08/guides/configuring-your-connections/cdc-streaming-from-databases)).
* At [connection creation](https://apidocs.polytomic.com/2024-02-08/api-reference/connections/create) through the `configuration` object.
* At [model creation](https://apidocs.polytomic.com/2024-02-08/api-reference/models/create) (to be used as a source for model syncs) through the `configuration` object.
* At [model sync creation](https://apidocs.polytomic.com/2024-02-08/api-reference/model-sync/create) where the connection is a destination, through the `target.configuration` object.
* At [bulk sync creation](https://apidocs.polytomic.com/2024-02-08/api-reference/bulk-sync/create) where the connection is a source, through the `source_configuration` object.
* At [bulk sync creation](https://apidocs.polytomic.com/2024-02-08/api-reference/bulk-sync/create) where the connection is a destination, through the `destination_configuration` object.