We also had to pick a date to freeze the old database and begin the transition. To complicate matters further, three satellite offices were part of the integration process. Now, all relevant volunteer information is available to everyone in one easily accessible database. Celebrating little successes really helped us get through it. But the most important piece of advice she has to offer organizations interested in specialized software is to test it in a real simulation of your work needs.
Test drive it as much as possible on a small scale to discover the glitches.
Technology will never be perfect.