eINVOICING
  1. B2G Documents
eINVOICING
  • eInvoicing Service
    • About Us
    • What We Offer
    • Changelog
    • On Boarding
    • FAQ (EN)
    • FAQ (GR)
    • eInvoicing Service API
      • API Authentication
        • API Key Authentication
          • /Authentication/login
            POST
        • Bearer Token Authentication
          • Authentication Login Bearer Token
            POST
          • Authentication Refresh
            POST
      • API Endpoints
        • API Validations
        • Sending a Document
          • Sending a Document
          • Mandatory and Optional (Best Practice) Fields Descriptions
          • Mobile Notifications
          • IAPR SIGN POLICY METHODS
          • QR OF THE DOCUMENT
          • Record Type
          • Invoice/json
            POST
          • /Invoice/credit
            POST
        • Purchase Orders for F&B
          • FnB Purchase Orders Documentation
          • Offline QR Code Implementation
          • Retrieve Open Order Documents (FnB)
            GET
        • Document Management
          • Retrieving a document
          • PDF Invoice as an Attachment
        • Alternative Currency Holding
          • ALTERNATIVE CURRENCY (AC)
        • Delivery Notes
          • Delivery Notes Documentation
          • /Invoice/cancelDeliveryNote
            POST
        • POS Integration
          • POS Integration
          • POS Offline QR Code Implementation
          • /PosSignatures/{issuerTin}
            POST
          • /Receipt
            POST
          • /PosTransactions/signpos
            POST
        • Delayed POS Payment
          • Delayed POS Payment
        • B2G Documents
          • B2G Documents
          • B2G Mandatory Fields
          • B2G Status response
          • B2G Soft Reject
          • RESEED INVOICE
          • BT-10 BuyerReference
          • B2G fields for ERP Configurator 3
          • ΕΓΚΥΚΛΙΟΣ ΠΡΟΣ ΠΑΡΟΧΟΥΣ-ΠΡΟΜΗΘΕΥΤΕΣ ΥΠΗΡΕΣΙΩΝ ΥΓΕΙΑΣ ΓΙΑ ΤΗΝ ΗΛΕΚΤΡΟΝΙΚΗ ΤΙΜΟΛΟΓΗΣΗ
          • /B2GInvoice/ReSeedInvoice
            POST
          • /B2GInvoice/GetLastStatus
            GET
      • JSON Structures & Payloads
        • EliseCoreDocument Structure
          • EliseCoreDocument Structure
        • Minimum & Conditional Fields
          • Minimum & Conditional Fields
        • Response Examples & Error Handling
          • Response Examples & Error Handling
      • Offline QR Code
        • Offline QR Code Instructions
      • Status MyData
        • MyData/status
          GET
      • Extra Functionalities
        • Archiver
          • Archiver Functionality
      • Terminology
        • Document Type Codes
        • VAT & TAX Codes
        • Country & Currency Codes
        • Measurement Unit Codes (IAPR & EN16931)
        • Self-Billing Remarks (IAPR)
        • Classification & Payment Method Codes (IAPR)
        • Special Invoice Category
      • VAT Validation
        • Greek VAT Check
        • EU VAT Check
      • Attachments
        • Attaching Media & PDFs
        • Invoice Document Upload (Invoice/File)
      • SOFTONE ERP Related Segments
        • SOFTONE Configurator
          • SOFTONE Configurator - B2G Mapping
    • eInvoicing Portal
      • Template Configuration (Default Template)
      • Single Sign-On (SSO)
        • Single Sign-on (SSO) Setup Instructions
        • Single Sign-On (SSO)
    • WIKI JSON Samples
      • 1.1 B2B
      • 1.3 B2B Sales Invoice Third Country
      • 5.2 B2B Credit Invoice Non-Associated
      • 2.1 B2B Service Rendered Invoice
      • 1.1 Debit B2G
      • 11.1 B2C Retail Sales Receipt
      • 11.4 Retail Sales Credit Note
  1. B2G Documents

B2G Mandatory Fields

B2G#

Every colored cell is a new Object#

B2G Extra Fields and Details#

FieldValues - ExamplesBrief ExplanationUseful LinksDescription - More Info - Examples
DocumentTypeCodeELB2GMandatoryELB2GTag used only for B2G invoices. This field must be set to “ELB2G” so that it declares the issued document concerns a B2G transaction.
B2GDetails---This field is mandatory for all B2G documents and more information can be found in the Features & Modules in B2G invoicing section.
ContractingAuthorityCode-Mandatory"1015.E00236.0001"Unique codification for Public Entities - Not a static value. More info
ContractingAuthority-Mandatory"ΓΕΝΙΚΟ ΝΟΣΟΚΟΜΕΙΟ ΚΟΖΑΝΗΣ"The official name of the Contracting Authority - Not a static value. More info
ContractTypeCode-Mandatory"39ΜΕ94690ΩΧ-ΟΨΞ"
ContractReferenceCode-Mandatory"20SYMV006467658"Contract Online Posting Number (ADAM) of the Central Electronic Register of Public Procurement (ΚΗΜΔΗΣ), in accordance with Article 38 of Law 4412/2016 (A.147).

Recipient#

FieldValues - ExamplesBrief Explanation
RegisteredNameCompany nameMandatory
Vat""EL123456789
Address--
CountryCodeGR-
CityAthens-
StreetΚ. ΜΑΜΑΤΣΕΙΟΥ 1ΥΠΟΧΡΕΩΤΙΚΟ
Postal50131-

Details#

FieldValues - ExamplesBrief Explanation
lineNo1-
classificationLineNo1-
measurementUnitCodeEN"H87"-
CpvCode"333600000-6"ΥΠΟΧΡΕΩΤΙΚΟ

Useful Links and API Calls#

B2GInvoice API Documentation
IAPR's Manual - Ηλεκτρονικά βιβλία - Πρότυπα Λογιστικά Αρχεία
Get Request to receive B2GInvoice status on your ERP:
Modified at 2025-08-20 10:54:27
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