With the 3.11 upgrade, the Period on the Header of the ITI type document copies over to the ITA type document but is not hard coded and can be changed.
When the ITA document is created, if the Period of the ITI is copied over and the Period has been closed, when the ITA agency validates the document, they receive this error message: Accounting Period closed - transaction not allowed. (A1598). The ITA agency can blank out the Period field on the Header and validate the document. The document will post to the current period.
Please contact your GAO Liaison if you have any questions or concerns.