Using a VPC connection - Amazon QuickSight
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Using a VPC connection

In some cases, your OpenSearch domain is in a virtual private cloud (VPC) based on the Amazon VPC service. If so, make sure to determine if QuickSight is already connected to the VPC ID that the OpenSearch domain uses. You can reuse an existing VPC connection. If you're not sure if it's working, you can test it. For more information, see Testing the connection to your VPC data source.

If a connection isn't already defined in QuickSight for the VPC that you want to use, you can create one. This task is a multistep process that you need to complete before you proceed. To learn how to add QuickSight to a VPC and add a connection from QuickSight to the VPC, see Connecting to a VPC with Amazon QuickSight.