Explanation
The position is the basis for valuation flows when working with security transactions. The position is the quantity of securities that are held in a portfolio at a given point in time. The valuation flows are the cash flows that are generated by valuing the position based on market data and valuation rules. References:
https://help.sap.com/viewer/0fa84c9d9c634132b7c4abb9ffdd8f06/2020.002/en-US/3a3a8f6f7a6e4c2b8d5b8f1e2

Explanation
The activity categories that can be configured to initiate the deal release workflow for a money market transaction are rollover, contract, and underlying. Rollover is used to extend or renew a money market transaction with the same or different terms. Contract is used to create or change a money market transaction.
Underlying is used to create or change an underlying transaction for a money market transaction, such as a loan request or deposit notification. Verified References: [Deal Release Workflow Overview], [Deal Release Workflow Configuration Guide]

Explanation
The configuration tasks that are used to determine the G/L clearing account for self-initiated payments (SIP) in combination with the bank reconciliation ledger are assign account symbol to payment method and set up bank determination for payment transactions. Self-initiated payments (SIP) are payments that are initiated by users directly in Bank Account Management without reference to an underlying transaction. The bank reconciliation ledger is a function that allows you to reconcile bank statements with accounting documents in SAP S/4HANA by using a subledger approach. The configuration tasks that are used to determine the G/L clearing account for self-initiated payments (SIP) in combination with the bank reconciliation ledger are assign account symbol to payment method, which allows you to link a payment method with an account symbol that represents a G/L account; and set up bank determination for payment transactions, which allows you to define the ranking order and selection criteria for bank accounts and G/L accounts for payment transactions.
References:
https://help.sap.com/viewer/0fa84c9d9c634132b7c4abb9ffdd8f06/2020_002/en-US/f22248cc13f74872af15bd2e

Explanation
The product types that are part of the Money Market submodule are commercial paper, current account-style instrument, and cash flow transaction. Money Market is a submodule of Transaction Manager that allows you to manage short-term financial transactions and positions with various instruments, such as deposits, loans, or commercial papers. The product types that are part of the Money Market submodule are commercial paper, which is a short-term debt instrument issued by corporations or banks; current account-style instrument, which is a deposit or loan instrument with variable interest rates and flexible repayment terms; and cash flow transaction, which is a generic instrument that allows you to enter any cash flow data without reference to an underlying transaction. References:
https://help.sap.com/viewer/0fa84c9d9c634132b7c4abb9ffdd8f06/2020_002/en-US/3a3a8f6f7a6e4c2b8d5b8f1e2

Explanation
The cash management attributes that are defined in the G/L account master record are planning level and relevance to cash flow. The planning level defines the granularity of the cash flow forecast and liquidity planning based on the G/L account. The relevance to cash flow defines whether the G/L account is relevant for cash flow analysis or not. References:
https://help.sap.com/viewer/0fa84c9d9c634132b7c4abb9ffdd8f06/2020.002/en-US/3a3a8f6f7a6e4c2b8d5b8f1e2