We retain historical address, phone number, and email information.
We would like to be able to record the date a contact method expires accurately, however Altru will not allow us to add an end date to primary contact methods.
This is especially problematic when recording expired contact methods in Import as we are required to manually remove the end date from every line of the import batch. When we run large email campaigns this can mean hours of work to mark constituents with bad email addresses.