hi,
as said in the doc (https://docs.microsoft.com/en-us/dynamicsax-2012/appuser-itpro/create-a-customer-rebate-agreement),
“payment type of "Pay using Accounts Payable" (Which used to be called Check) or "Customer Deductions"(which in effect is a credit)" needs to be maintained in rebate agreement before rebate claim automatically created after invoicing the sales order.
after experimenting in test environment, yet not sure what is the difference between 'Pay using Accounts Payable' and 'Customer Deductions'. seems they all can generate a credit note in settlement transaction for customer and then paid by inputting a customer payment journal where the credit notes are marked.
have an idea? thanks.