Hi Holquist,
In Time&Billing, every time you run the Month End procedure, the date you used to log into Time&Billing will become the 'Last Month End Date'. This will appear as the 'Previous Period 1' cutoff date. It will also bump down all of the other previous period end dates. It is expected that these dates will appear in reverse sequential order, with the latest Month End Date at the top, and older dates going down the list.
Indeed there are only 11 cut-off dates listed on this screen, to signify the Current period (anything later than the last period end date), and 11 more groups for a total of 12. These column statistics are available to see in the Maintenance / Edit Customer History function.
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Regards,
Softrak Tech Support