We need to send an email when the Project stage is changed. We have found the BADI: Send email at the engagement Project context but we don't know how it Works. The documentation that the BADI provides is the following: "You can use this Business Add-In (BAdI) to switch on a function to send emails when project stages are changed. If an active implementation exists, the system sends an email to those responsible for various roles of a project (roles such as the project manager, project partner, accountant, and project controller)." We try it but it wasn't posible to work with it. Has anyone some information about this issue?