Leave Request Process

Hi Experts,

We are in the process of implementing Leave Request process through mobile application, I need to know what are all the bapi's which are related to this process.

Please provided me the Bapis for the following process.

Employee Enters the leave request and send to the manager.(work flow should also be triggered)

Managers approves or rejects the leave request.

Please let me know whether there are stand ones or I should create Custom Bapis.

Thanks & Regards,

Reena.