For new or existing patients, the link you'll share is the same. Go to Help>Downloads and Links and on the right side of the page under Online Patient Registration Link select "Copy Direct Link".
Now, you can send the patient the link to enter their registration information. If it's an existing patient, go to their patient overview then click on Patient>Email or you can text the patient by selecting the SMS icon or click on the cell phone number in the patient overview.
Paste the information in the message body and send. If it's a new patient, from their appointment only, you have the option to email or test the information.
Please go to Help>Get Help and search the help portal for more information.