You can generate CA 7 calendars using batch or online facilities or automatically with the perpetual calendars feature.
Perpetual Calendars are self-generating.
WA CA 7 Edition
To construct a fiscal month calendar, use the following coding criteria for the beginning and ending of a month:
CHANGE MONTHBEGIN JAN 01/05
CHANGE MONTHEND JAN 02/03
CHANGE MONTHBEGIN FEB 02/04
CHANGE MONTHEND FEB 03/06
CHANGE MONTHBEGIN MAR 04/07
CHANGE MONTHEND MAR 05/10
CHANGE MONTHBEGIN APR 06/11
CHANGE MONTHEND APR 07/09