If you receive an error stating the Last Name is Required, this is a remnant of an old Bug that was resolved in an earlier build of Blackbaud Grantmaking (GIFTS Online). This may still occur if your form is very dated - you will likely need to build out a newer version of your form.

As for the error itself, please contact us with the customer support number for GIFTS listed at https://www.blackbaud.com/contact-us/ which will always have the most up to date information.