What order does oracle 'read' parameters for "Import Standard Purchase Orders)?

We have a custom process that calls the "Import Standard Purchase Orders" process. In our custom process, we identify each parameter and hard code required parameters. This worked fine until we implemented a patch that added parameters to this process (Batch size, Gather stats). We need to update our custom code adding these new parameters (which are not required but auto populate when running the process on its own). What order does Oracle expect these parameters to be passed? Will Oracle look for populating parameters in the order that they display when running it manually?