To create a Period:
Start Year
Note:
The Start Year of one period cannot overlap the End Date of a previous period.
Number of Years, the maximum number of years is 20
Period Name, the maximum characters is 80
You can use special characters; example: 02/15/2015.
Description, the maximum characters is 1000
Frequency
You can specify which frequencies are used in each period by selecting the frequencies from the list of defined frequencies. See Creating Frequencies