This is where you have to set the period code for the intracom declaration using the format: ppyyyy
PP can stand for a month: from '01' to '12'.
PP can stand for a trimester: '31','32','33','34'
The first figure means that it is a trimester,
The second figure identify the trimester.
PP can stand for a complete fiscal year: '00'.
YYYY stands for the year (4 positions).