Hi,

I am working on a project that has many users having different roles (manager, employees etc.) and for ex. when an employee needs to make a change on the data, program should automatically send an e-mail to the manager for the approval of the operation. If the manager approves the operation then the employee will be able to make the change, otherwise he/she won't. I am not using SharePoint or something like that to manage workflow, so i am thinking about using a web service to manage this task. In other words, program will send an e-mail to the manager and when the manager approves or denies the operation it will invoke a web service and then user will be able to make change on data. But i don't know how to invoke a web service over an e-mail, or if there is another way to manage this task.

Any help would be greatly appreciated.