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Shift4 Universal Transaction Gateway (UTG)
https://support.shift4.com/hc/en-us/sections/360007172774-Universal-Transaction-Gateway-UTG-
Quoted from Shift4's UTG Installation and Configuration Guide:
"The Universal Transaction Gateway® (UTG®) encrypts and securely transmits transaction data from interfaced merchant systems (POS, property management, eCommerce shopping cart, etc.) directly to Lighthouse Transaction Manager using Shift4’s proprietary Derived Unique Key Per Transaction with Moving Target Encryption (DUKPT w/MTE)."
The Shift4 UTG will be installed by a representative at the property, usually a manager or IT professional, and a Shift4 representative. This usually needs to be scheduled a few days in advance so contact Shift4 support as soon as possible. https://www.shift4.com/support
Be sure that the TcpHost API interface is installed.
Once this is done Execu/Tech Systems should be contacted and provided with