At all times, a T2 return must include a tax form GIFI Sch100 (Balance Sheet Information). You can visit the CRA page about the General Index of Financial Information (GIFI).
A Sch101 form is also required when a corporation files its first return after Incorporation or Amalgamation as year start status.
In newer T2Express versions such as 2020.2, schedule 100/101 is found inside the menu "Forms".
In the T2Express version before v2013.1, schedule 100/101 is found inside the menu "GIFI".
Since T2Express v2013.1, the GIFI menu is consolidated into the Forms menu.