İleti Yönetim Sistemi or in short, the IYS was established to protect both the sender and the receiver in accordance with the Law No. 6563 on the Regulation of Electronic Commerce and entered into force on January 4, 2020. The purpose of the IMS is to track the messages of the senders who reach their target audience for any commercial purpose via their phone numbers. In this way, it both protects the sender from possible complaints and prevents the target audience from feeling disturbed by blocking the messages that they do not want to receive.