Yes, Donor ID is one of the optional fields we provide when adding recipients! You can add your donor ID from any existing CRM system you use. Using the donor ID, you can export data from ThankView and digest it into your CRM to capture ThankView metrics.
Currently, the main identifier for a ThankView recipient is their email or phone number. For example, if you enter the email and phone number for one Donor, ThankView will keep both the email and phone number as separate contacts even though they have the same Donor ID.