Restict self approval for absence request on MSS
I am implementing ESS and MSS for absence application and approval. Workflows are being used to send absent request to manager for approval.
I want to know if some one has implemented a check for self approval. i.e do any one know how to check and restrict self approval?
A employee creates a absence request for him self and sends it to his manager. Because of forward functionality or substitutions request comes back to applicat for approval, then how can we restrict him from approving his own request?
Can this be done by authorisations? or by using a badi or user exit?