You are testing a current-account style transaction.

The characteristics of a current-account style transaction are capitalized interest condition, scaled interest condition, and increase/decrease amounts. A current-account style transaction is a type of money market transaction that represents a deposit or loan instrument with variable interest rates and flexible repayment terms. The characteristics of a current-account style transaction are capitalized interest condition, which defines whether the interest amount is added to the principal amount at the end of each interest period; scaled interest condition, which defines whether the interest rate changes according to the principal amount; and increase/decrease amounts, which allow you to change the principal amount during the life cycle of the transaction.References:https://help.sap.com/viewer/0fa84c9d9c634132b7c4abb9ffdd8f06/2020_002/en-US/3a3a8f6f7a6e4c2b8d5b8f1e2a2a0d5b.html