“…Schlichter and Kraemmergaard (2010), in their comprehensive research of 885 peer-reviewed abstracts of journals from 2000 to 2009, also revealed research regarding optimisation of ERP systems, in which post-implementation, usefulness, achievement of competitive advantage through ERP, ERP users and financial benefits of ERP systems should be considered. Also, many other authors pointed out the problem of low exploitation of ERP systems, i.e., users don't use the implemented ERP solution to the advanced level (Bradford, 2008;Bueno & Salmeron, 2008;Calisir et al, 2009;Costa et al, 2016;Hancerliogullari Koksalmis & Damar, 2019;Hsieh & Wang, 2007;Isnalita, 2018;Kwahk & Lee, 2008;Rajan & Baral, 2015;Scholtz, Mahmud, & Ramayah, 2016;Uzoka et al, 2008). We are researching what problem is causing the differences.…”