The two valid Data Access Set types are Full access and Read Only access. A Data Access Set is a security feature that defines the access level that users have to ledger data, such as balances, budgets, or journals. A Data Access Set type is an attribute that determines the type of access that users have to ledger data within a Data Access Set. The two valid Data Access Set types are Full access and Read Only access. Full access allows users to view and enter data for ledger data within a Data Access Set. Read Only access allows users to view but not enter data for ledger data within a Data Access Set. Full Ledger is not a valid Data Access Set type, but an option that determines whether a Data Access Set grants access to all balancing segment values in a ledger or only specific balancing segment values. Primary Balancing Segment Value is not a valid Data Access Set type, but an attribute that identifies the legal entity or business unit for which financial statements are prepared and balanced. Read and Write access is not a valid Data Access Set type, but an alternative term for Full access. Reference: Oracle Financials Cloud: General Ledger 2022 Implementation Professional Objectives - Define Ledgers 12