The internet today has changed people's shopping patterns, especially indonesians, in a more paktis direction, namely online shopping. One company that has implemented an online sales system in marketing its products is PT Ulu Mas Jaya (UMJ). The online sales system adopted by PT Ulu Mas Jaya (UMJ) is currently website-based and mobile under the brand "Brayamart". Due to the lack of measurement…