What is GMP3?GMP3 is the protocol used in the communication between the Cash Register POS application and external devices and VAS applications. Thanks to this development, companies with special appl...
Read MoreThe e-invoice usage requirement, which was reduced from 10 million TL to 5 million TL with the regulation introduced with the Tax Procedure Law numbered 509 dated October 19, 2019 and numbered 507, no...
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