In a method of controlling an operational parameter of a smart apparatus, a user processing device receives user-defined criteria for changing the operational parameter based on a financial parameter associated with an account. The user processing device obtains a value for the financial parameter from a financial institution server a value and determines whether the user-defined criteria have been met. Responsive to a determination that the user-defined criteria have been met, the user processing device transmits to the smart apparatus a first instruction to change the operational parameter. The user processing device may then receive an updated value for the financial parameter from the financial institution server and determine whether the user-defined criteria are no longer being met. Responsive to a determination that the user-defined criteria are no longer being met, the user processing device transmits to the smart apparatus a second instruction to change the operational parameter.