Unica Corporation Announces Date of Second-Quarter 2008 Financial Results Release, Conference Call and Webcast

Unica Corporation (Nasdaq: UNCA), a leading global provider of
enterprise marketing management (EMM) solutions, today announced that
it will report its second-quarter 2008 financial results after the
U.S. financial markets close on Wednesday, May 7, 2008.

In conjunction with this announcement, Unica will host a
conference call on Wednesday, May 7, 2008 at 5:00 p.m. EDT to discuss
the company´s financial results. To access this call, dial
888-206-4838 (domestic) or 913-312-1502 (international). Additionally,
a live audio webcast of the conference call will be available through
Unica´s web site at http://investor.unica.com.

A replay of this conference call will be available from 8:00 p.m.
EDT on Wednesday, May 7, 2008 through 11:59 p.m. EDT on Wednesday, May
21, 2008 at 888-203-1112 (domestic) or 719-457-0820 (international).
The replay passcode is 7045753. A replay of the webcast will also be
available on the events portion of the Unica web site following the
earnings call.

About Unica

Unica Corporation (Nasdaq: UNCA) is a leading global provider of
enterprise marketing management (EMM) software. The most comprehensive
EMM suite on the market today, Unica´s Affinium(R) software
streamlines the entire marketing process from analysis and planning to
project management, execution and measurement. More than 600 companies
worldwide have adopted Affinium as their EMM solution.

Unica is headquartered in Waltham, Mass. with offices around the
globe. For more information, visit www.unica.com.

Note to Editors: Copyright 2008 Unica Corporation. Unica, the
Unica logo, and Affinium are registered trademarks of Unica
Corporation. All other product names, service marks, and trademarks
mentioned herein are trademarks of their respective owners.