How to combined positive (Buy line) and Negative value (Return line) in one AR invoice

Summary:

There is an business requirement like to combine invoice and credit memo transaction into one single AR invoice generation. we would like to know how to achieve this ? is there any specific setup required from order management side to get combine both transaction and send to one AR transaction type.

Content (please ensure you mask any confidential information):

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

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