[ibr-138-ae]-Invoicing period [IBG-14] is MUST, where Invoice transaction type code [BTAE-002] is XXX1XXXX (Summary invoice).
ibr-138-ae
/ubl:Invoice | /cn:CreditNote
(matches(cbc:ProfileExecutionID, "^[01]{3}1[01]{4}$") and cac:InvoicePeriod) or not(matches(cbc:ProfileExecutionID, "^[01]{3}1[01]{4}$"))