Contract number: [ complete ]  Service contract conditions of December 2018  1. INTRODUCTION  2. DEFINITIONS  1.1 The present agreement represents an annex to Direct Service Contract No.  XXX (‘the  contract’), allowing the use of the following post-award procurement and contracts modules:  1.2. The present agreement shall be activated following a notification via e-mail from the  contracting authority  to the contractor (the contact persons indicated in the contract) of the  start of use of one or several modules. This written notification, which will specify whether it  concerns only services or goods or both, shall have full legal effect from the date specified  therein. 1.3. Unless otherwise established, the present agreement is only applicable for the  communications between the contractor and the participating  Directorates-General,  Institutions, Agencies and Bodies  (EUIs) mentioned, for each module and type of purchase  (service  or  goods)  at  the  following  e-PRIOR  website:  https://webgate.ec.europa.eu/fpfis/wikis/x/8pBsAQ. The list is regularly updated.  Other Directorates-General of the European Commission or other EUIs may join this  agreement at any time by way of notification via e-mail from the  contracting authority  to the  contractor. This written notification shall have full legal effect from the date specified therein. 1.4. All documentation related to the present agreement is available on the web at the  following link: https://webgate.ec.europa.eu/fpfis/wikis/x/8pBsAQ Parties agree to apply the following definitions:  ‘Authorised persons’: persons with access to the system (e-PRIOR), meeting the  requirements laid down in Article 121 (8), (9) and (10) of the Commission Delegated  Regulation (EU) No 1268/2012of 29 October 2012 on the Rules of Application of Regulation  (EU, Euratom) No 966/2012 of the European Parliament and of the Council on the financial  rules applicable to the general budget of the Union, and which must be identified by the  system via established means (authenticated user in ECAS – European Commission  Authentication System).  ‘Back office’:  the internal system(s) used by the parties to process electronic documents such  as orders and invoices. 44   e-Request  (quotation request for services or goods, supplier formal offers)   e-Ordering  (orders based on framework contracts and others)   e-Fulfilment  (dispatch and receiving advices)  e-Invoicing  (standard invoices, debit and credit notes)  and any other module that are being developed or will be developed in the future such  as e-Contracts, e-Signature, e-Catalogue