"Auto Discovery" - a process that queries LDAP, AD, or database (Generic) mappings to get a list of systems or users from some container external to TPAM. This list is used to either add, update, or remove Managed Systems or Users in TPAM.
"Account Discovery" - a process that uses an Account Discovery Profile and the functional account to discover accounts on an existing TPAM Managed System.
They are controlled by separate services and do not currently share any schedule or process information. The two processes interact indirectly in that Auto Discovery may add a system using a template with an Account Discovery Profile.