If you'd like to test Nex.to to make sure everything is working correctly, follow the instructions on creating and activating a campaign, but use Nex.to Test Campaign as the name of the campaign. Then, use Marketing Manager to send yourself a message. Once you receive the message, open it and click the links. Then, visit the campaign screen in Nex.to to see the analytics captured.
If you've chosen to synchronize message opens and links clicks for this campaign, a few moments later they will appear within ConnectWise.
Tip: Of course you can also test every single campaign before sending it out. Make sure to set the Campaign Testing Cut-off Date in the Toolbox afterwards to eliminate all test data.