The only transactions on which you can edit the period are the GL transactions that were created (they must be in an unposted/unapproved state). The actual Payment transactions themselves DO NOT hold a record of the GL period or Fiscal Year.
The only transactions on which you can edit the period are the GL transactions that were created (they must be in an unposted/unapproved state). The actual Payment transactions themselves DO NOT hold a record of the GL period or Fiscal Year.