Macy’s 820 Remittance Advice EDI Transaction Macy’s 820 is an EDI Payment Order/Remittance Advice transaction set. Macy’s 820 Remittance Advice is used to request a payment and to transmit/report remittance information. Since an EDI 820 has two functions, the CSP can send the 820 transaction set to the Payment System to request a payment. The Read More →