Where the payment request falls under the electronic invoicing obligation provided for in Articles L. 3133-1 to L. 3133-3, the date of receipt of the payment request by the contracting authority corresponds :
1° Where invoices are sent by electronic data interchange, the date on which the State’s budgetary and accounting information system time-stamps the arrival of the invoice and, for other contracting authorities, the date of notification of the electronic message informing it that the invoice has been made available on the public invoicing portal referred to in Article L. 3133-6;
2° When invoices are sent via the portal or service mode, on the date of notification to the contracting authority of the electronic message informing it that the invoice has been made available on this portal.