The Archive Matter Address check box on the Setup tab of Change Client Options is available only when the Inactive check box is selected.

Select this check box to change the address to matter mode for the selected client(s). This allows you to lock the client's address at the same time the client is marked inactive so that if the contact's address information is updated, it will not affect the inactive matter.

Clear this check box to remove matter mode for the selected client(s). The software will attempt to match the Matter address to an existing address for the linked contact. If no match is found, the Matter address will be retained.