Adds an additional email to a contact.
The contact must have a main email (email.email) before an additional email can be added.
Each time the contact is updated, revision increments by 1. The current revision must be passed. This ensures you're working with the latest contact and prevents unintended overwrites.
There are 2 errors with this status code.
This method may also return standard errors. Learn more about standard Wix errors.