Test the connection to verify if the mandatory parameters are valid.

You can configure proxy at the agent level or connection level. See the following table to understand the proxy settings that take precedence when you define the System proxy and proxy at the connection level:

System Proxy	REST V3 Connection Attribute			Result
	No Proxy	Platform Proxy	Custom Proxy
No	Yes	No	No	Does not consider proxy.
No	No	Yes	No	Does not consider proxy.
No	No	No	Yes	Considers Custom proxy.
Yes	Yes	No	No	Does not consider proxy.
Yes	No	Yes	No	Considers Platform proxy.
Yes	No	No	Yes	Considers Custom proxy.