This only applies if you're using the Schedules feature, e.g. for hourly reservations, and you have Rates definitions that only apply to some (not all) periods of a schedule.
A bug was introduced in version 3.6 which will cause any Periods listed in a Rate definition (in the "Applies only to..." section) to be duplicated and deleted if the Rate itself is duplicated or deleted. This causes duplicated rates to not work, but more importantly if the rate is deleted it will cause the associated schedule to lose its periods.
To avoid this error, delete all Periods from the list in a Rate definition before using Copy or Delete on the Rate, and then add them again afterwards if needed.
Page URL http://CampgroundMaster.com/news/rateswithperiodsbug.html
Campground Master Home