In a Credit Card Payment case type, you want to set the yearly fee to...

To set a fixed yearly fee of USD 75 in a Credit Card Payment case type, the most straightforward and appropriate method is to use a data initialization configuration where the Yearly fee field is set to 75. This approach involves configuring the data model or the default value setting within the case type or relevant data transform to initialize the Yearly fee field at case creation. This ensures that the field is consistently set to the correct amount across all cases without requiring calculations or validations that are meant for data integrity or conditional logic.