This white paper describes how to create mobile client applications (apps) that enable Microsoft Dynamics AX users to communicate information with Microsoft Dynamics AX 2012. It provides walkthroughs of a solution that addresses the simple user scenario of an employee capturing information about expenses that the employee incurred while traveling. The document is only meant to teach you the fundamentals of getting devices anywhere in the world talking to Microsoft Dynamics AX. The scenarios you can choose to implement with these lessons are up to your business requirements and your imagination. You can easily envision several exciting scenarios, such as time management, access to customer information while traveling to a customer site, creating sales orders, managing your projects on the road, or just checking up on the factory from across town on your phone or tablet.