9. Payments Introduction: In payments we are handling bidirectional synchronization of payments. In payments we cannot modify we can create or delete the payments in Xero. We establish a foreign key relationship between the items in our application and the one in Xero. We are accomplish this by storing the PaymentID returned by Xero in our application. Based on the xero PaymentID we are maintained synchronization between Payments in our application and in the xero. Creation of Payments: To create…