Hi Cathy , thank you for submitting to our Ucraft Forum!
There is a default message appearing after users register in your website, stating 'You have successfully registered! Please allow up to 24 hours for your account to get verified.' in the top banner of your website.
You can also opt for the User Account Element's Settings > Form Settings > After Successful Registration section and enable Append Custom Code option to set up conversion tracking by pasting the tracking code there.
Here's an article for more insight on the User Account Element.
Feel free to contact us via the live chat button on the bottom right of your website for further assistance!