How does identification work across devices?

Identification of website visitors as contacts and their traffic source works the same way across all devices. 

If a visitor identifies themselves on two devices, or clicks an email link with an identification parameter in, a cookie is dropped on both devices and both are associated with the same contact.

See also:

• Visits in Ometria
• How does Ometria identify contacts on my website?
• Unidentified visitors