Simple Requirement.!!!

Hi Experts,

Here is the Requirement:  We have screen developed by webdynpro. User will fill the data in screen and submit for approval. In the developed screen itself have Approve and reject options.

First Mail will go to Approver outlook with Portal URL.

Once Approver Clicks on Portal URL Link through Outlook. It needs to direct Portal webpage. Once enter portal credentials he need to execute the Work item.

Work item is a developed webdynpro screen with Approve and Reject options.

Can you Help me to Achieve this?

Thanks