Thanks to Abacus accounting technology, It supports Turkish airlines, Troya Amadeus, Atlas Global, Pegasus, Onur Air, IATI and many other airlines. You can import your tickets directly, you can quickly issue E-Invoice. With Web Services, it offers the opportunity to work outside the office. You only need to have internet. You can also profit from server costs. Unlimited reporting possibilities are only available in Abacus thanks to automatic selections in the vouchers, which are more than standard accounting receipts, with code fields, expense center selection, entry and exit dates processing and integration. Abacus Invoice Purchase, Sales, Sales and Return / refund processes from Purchase transactions processes are all in one place. Abacus supports the E-invoice and E-archive system 100% compatible structure. It is possible to create e-invoice or e-archive numbers with automatic taxpayer inquiry when making invoices, with Abacus invoice.