The Selling Partner API for Finance Remittance provides programmatic access to vendor payment remittance data. This data includes what Amazon paid or deducted, the invoices each payment covers, and the associated dates and identifiers. It returns the same data available on the Payments > Remittance view in Vendor Central, so you can retrieve your cash flow breakdown, including invoice payments, deductions, vendor returns, and advertising without exporting from Vendor Central manually.
For more information, refer to:

