The effectiveness of the E-CRM system was examined in this study, involving those with online shopping experience, specifically the regular customers of Carrefour in Jordan. Data were obtained through 550 distributed sets of questionnaires. Four trained and certified research assistants assisted the data gathering process. Data from 320 returned questionnaires were analyzed using Structural Equation Modeling (SEM). System quality, access to information, security, training and customer satisfaction were the examined factors towards the effectiveness of E-CRM systems. Results show positive impact of security, system quality, training, and access to information on user satisfaction, and user satisfaction affected the effectiveness of E-CRM. Nonetheless, the relationship between training and effectiveness of E-CRM on online shopping was not mediated by user satisfaction.