Billing with multiple payer
We have a requirement where when a product A say priced at 100 INR is sold, it will be paid by multiple payers e.g Payer1 will pay 80 INR and Payer 2 will pay 20 INR. So, in the sales order for item A (having quantity 1 EA) there will be multiple payers, Payer1 and Payer2 for item A. When this line item A is billed, Payer1 should be invoiced for 80 INR + Tax (for quantity 1 EA) and Payer2 should be invoiced for 20 INR + Tax (for quantity 1 EA)
Please advise how to map this.