When pushing the Last Name field to BBCRM, it would be more beneficial to have the old last name converted to an Alias rather than simply overwriting the field.
Thank you for adding your suggestion! As the products group, we have been discussing ways to enhance our transformations and feel that your idea would be a valueable consideration. We don't have a timeline yet, but will keep you posted on any updates that could allow you to move an "old" value when a mapped field is updated.
Product Manager - Omatic Cloud