The financial account types that require rate type CLOSING when using currency conversion in a planning model are assets (AST) and liabilities (LEQ). A financial account type is a parameter that defines the nature of a financial transaction or position in the planning model, such as assets, liabilities, income, or expense. A rate type is a parameter that defines the exchange rate type that is used for currency conversion in the planning model, such as average rate or closing rate. The financial account types that require rate type CLOSING for currency conversion are assets (AST) and liabilities (LEQ), which represent balance sheet items that are converted at the closing rate of the period. Reference: https://help.sap.com/viewer/0fa84c9d9c634132b7c4abb9ffdd8f06/2020_002/en-US/3a3a8f6f7a6e4c2b8d5b8f1e2a2a0d5b.html