Data import and testing are important steps prior to turning on the system. Data import includes transactional and static data. Despite popular opinion, there is no need to import years of transactional data. Manual entry of month or year-end balances can help achieve the same balance sheet results. Data import of static data, i.e. account and/or products, should occur as close to go-live as possible. Testing is also important and can occur in a sandbox environment. The two primary tests that occur include: user acceptance testing – does this meet the requirements of the end users and parallel testing – does this achieve the same results. Once the testing is complete, the system is ready to go-live. Any change from the old system to the new system should occur over the weekend to prevent any interruptions to business.