FIRST_DAY_OF_PREV_MONTH

Calculates the date corresponding to the first day of the previous month of the provided date

FIRST_DAY_OF_PREV_MONTH (date)

Can be used in the condition of a FIND action.

Attribute of the Date type or date constant or calculation producing a date

Date: the first day of the month before the given date.

IF FIRST_DAY_OF_PREV_MONTH (Account.OpeningDate) = 01/09/2004 THEN ...