This is a great question! Being able to sync your contacts in your WordPress account is definitely a great feature request. Though at this time the Constant Contact WordPress plugin is a one way sync. Any contact lists collected through this plugin will only display in your Constant Contact account, it will not sync or display on your WordPress admin side. I apologize for any inconvenience this may cause. In the meantime, here's an article we have the goes over the functionality of this plugin.
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