Making Discount Approval Workflow

[Former Member]

Hello I am very new to SAP C4C

And I have a requirement where i have to make a discount approval workflow for "Tickets".

When the ticket will be submitted for discount approval. For reference find the screenshot below.

Once Request Discount is clicked then it would go to Approver for discount approval.

It would go the approver along with the invoice as a PDF attachment as a mail.

I am providing screenshot for below

Then the Approver will go to SAP C4C Environment by clicking on the URL as provided. Then he will have the provision of setting the discount as 10 percent or 20 percent and approve or reject it as shown below

Then the final Invoice will be generated after giving the discount. And this would hit the billing system in S4 Hana.

Please suggest me how to approach for this requirement.