Hvantage Technologies has developed a new module to sync invoices and payments between XERO Accounting and ERP systems like Odoo. The module allows for scheduled synchronization of invoices and payments between the two systems, keeping validation on accounts to ensure income/sales and payment accounts are accurate. It also reconciles invoices against imported payments from XERO. The document provides information on setting up mappings between accounts in XERO and Odoo, exporting invoices from Odoo to XERO, and importing payments from XERO to Odoo.