A custom call flow is implemented by receiving a sequence of user inputs provided as part of an interactive call between a caller requesting a service and a service provider that provides the service. The sequence of user inputs includes data path inputs, security inputs, and a termination input. The custom call flow is further implemented by identifying placement of the security inputs in the sequence, removing the security inputs from the sequence, and creating a custom sequence that includes the data path inputs, a placeholder representing the placement of the security inputs, and the termination input. The custom sequence utilizes the placeholder to prompt the caller to enter the security inputs at a location specified in the placeholder of the custom sequence. The custom call flow is invoked from the custom sequence received from the caller each time the caller initiates a request for the service.