The answers to all your questions about Flaterp are here.
Integration has been achieved with Yurtiçi Kargo, MNG Kargo, Sürat Kargo, Aras Kargo, UPS Kargo, Chronopost (France) and Colis Prive (France).
Apart from the virtual POS of Turkish banks, you can choose PayU, iPara, iyzico, TURKPOS, Paypal (Global) and Payline (Global) payment systems.
You can import the XML file you receive from your supplier and create and update your products. You can also provide the XML file to your dealers.