1. An information processing apparatus which is used in a workflow including processes and executes the processes of the workflow, comprising: a display unit configured to display parameters of the processes of the workflow and accept settings of the parameters; a first determination unit configured to determine whether the workflow includes a process to be executed by the information processing apparatus; a second determination unit configured to, when said first determination unit has determined that the workflow includes the process to be executed by the information processing apparatus, determine whether the workflow includes a process to be executed by an external apparatus in accordance with an instruction of the information processing apparatus; a first display control unit configured to, when said second determination unit has determined that the process is not included, control said display unit to display a parameter for only the process to be executed by the information processing apparatus; an acquisition unit configured to, when said second determination unit has determined that the process is included, acquire function information of the external apparatus; and a second display control unit configured to, after said acquisition unit has acquired the function information of the external apparatus, control said display unit to display the parameters while reflecting the function information on the parameters of the processes of the workflow.