Web module and mobile module

Hi guys,

I'll describe my scenario.

I have a web application that interact with an android app.

For the moment I automate only web application, but I would like to automate mobile app, and try do interact action made by device, with web app.

Web app:

-Show orders, with status(new, processing, close) and show items scanned

Mobile app:

-Start an order, and scan items barcode

Iteractions step:

-Open an order with mobile app

-Web app change status from new to processing

-Scan an item

-Web app show item scanned

Do you have any idea how can I do to automate togheter