# How Amazon AppFlow uses AWS Secrets Manager
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Amazon AppFlow is a fully-managed integration service that enables you to securely exchange data between software as a service (SaaS) applications, such as Salesforce, and AWS services, such as Amazon Simple Storage Service (Amazon S3) and Amazon Redshift. 

In Amazon AppFlow, when you configure an SaaS application as a source or destination, you create a connection. This includes information required for connecting to the SaaS applications, such as authentication tokens, user names, and passwords. Amazon AppFlow stores your connection data in a Secrets Manager [managed secret](service-linked-secrets.md) with the prefix `appflow`. The cost of storing the secret is included with the charge for Amazon AppFlow. For more information, see [Data protection in Amazon AppFlow](https://docs.aws.amazon.com/appflow/latest/userguide/data-protection.html#encryption-rest) in the *Amazon AppFlow User Guide*.