Men-In-Field is a mobile app which deals the entire post sales MPS-CRMS. (I.e. Customer Relationship Management). The app is in synchronization with the web portal that handles the other functionality. The complaint is logged from the web portal and assigned to the specific field engineer. The notification popped up on field engineer's mobile. Now he will proceed for the call, attend the call and resolve it. All these processes are done by field engineer from the app by filling the required data. The portal make analysis on that data and produce the reports for the performance of engineer, tracking of the call, the material used, the response time, the down time of the machine and many more.