What are possible negative side effects of implementing a system?

Implementing a new system can lead to several negative side effects, including resistance to change from employees, which may hinder productivity and morale. There can also be unforeseen technical issues that disrupt workflows or lead to data loss. Additionally, inadequate training can result in user errors, causing frustration and potential delays in operations. Lastly, the initial costs and resource allocation for implementation might strain budgets and divert attention from other critical projects.