Customization can be problematic. Compared to the best-of-breed approach, ERP can be seen as meeting an organization’s lowest common denominator needs, forcing the organization to find workarounds to meet unique demands.[54]
Re-engineering business processes to fit the ERP system may damage competitiveness or divert focus from other critical activities.
ERP can cost more than less integrated or less comprehensive solutions.
High ERP switching costs can increase the ERP vendor's negotiating power, which can increase support, maintenance, and upgrade expenses.
Overcoming resistance to sharing sensitive information between departments can divert management attention.
Integration of truly independent businesses can create unnecessary dependencies.
Extensive training requirements take resources from daily operations.
Harmonization of ERP systems can be a mammoth task (especially for big companies) and requires a lot of time, planning, and money