Infolet for Percentage of work complete and amount billed

Summary:

We have a requirement from the customer that they want to see the percentage of work that is complete (Method can be either cost/effort/manual) and how much amount is billed. We wanted to know if the invoicing will be done automatically based on the percentage of work completed. How the system is designed? is this requirement valid? We referred to many links in docs.oracle.com but could not understand the logic. Appreciate your help in this regard.

Content (required):

Version (include the version you are using, if applicable):

23A

Code Snippet (add any code snippets that support your topic, if applicable):