On_submit method of doctype

[Sangram]

@Chandresh_Thakkar

I want to access on_submit method of delivery note through my custom app

are you trying to customize it? If you want to do some additional function on submit of delivery note use hook for it from your app

Check - Hooks

e.g. In your apps hooks.py add this.The function on given path get called while submitting of a delivery note

doc_events = {
	"Delivery Note": {
		"on_submit": "{dotted.path.to.function}",
	}
}