Markus, Axline, Petrie, and Tanis (2000) describe two categories of ERP success:
1) project success metrics such as being on-time, on-budget, and functional delivery, and
2) business value metrics such as improved inventory management, cycle-times reduction, and time to market reduction.
Stanciu and Tinca (2013) define a successful ERP project as one that accomplishes the stated and desired functionality, utilized as planned, and operational within the planned time and budget.
Ifinedo and Nazmun (2013) describe ERP success as utilizing ERP in order to improve organizational goals.
Stanciu and Tinca (2013) suggest that definitions of ERP success include system quality, information quality, and the quality of outputs.
Although it can be challenging to define and agree to ERP success (and end-user perception of success may be subjective), the ERP organizational change plan needs to allow for a formal process for defining and documenting success. The organization then needs formal and sufficient mechanisms in which to measure and discuss success.