When first installing Datamaker, you login using the username 'administrator' and password 'marmite'. If for whatever reason this combination is no longer working, you will be able to reset it by running a query in the gtrep repository database. This document will explain how to reset the default administrator password for Datamaker.
To see the full article, please go here- https://support.ca.com/us/knowledge-base-articles.TEC1902693.html