When sending a push notification you may optionally specify a specific URL to open within your app when the notification banner is tapped. When composing a new push notification within the OneSignal portal (or via REST API) include a field in Additional Data named
targetUrl and specify the URL to be opened.
Launch URL ≠ targetUrl
targetUrlparameter rather than Launch URL.
Learn more about opening URLs via push notifications in the OneSignal Documentation
Updated about 2 months ago