Integration Server enables you to dynamically select the connection a service uses to interact with the adapter's resource. This feature enables one service to interact with multiple, similar backend resources.

For example, a service can be defined to use a default connection that interacts with OPC UA server1. However, at runtime you can override the default connection and instead use another connection to interact with OPC UA server2.

For more information about overriding a service's default connection at runtime, see Dynamically Changing a Service's Connection at Run Time.