If you enable the cross-session response feature, the runtime environment needs read-only access to the Campaign contact history tables. You can configure the runtime environment to view the Campaign system tables, or you can create a copy of the Campaign contact history tables. If you create a copy of the tables, you must manage the process of keeping the copy up to date. The contact and response history module will not update the copy of the contact history tables.

You must run the aci_crhtab SQL script against these contact history tables to add tables required for the cross-session response tracking feature.