GS1 AI 415 Invoicing Party Global Location Number (GLN) Digital Link Compliance Implementation Guide

Preface

This document is compiled in accordance with official GS1 General Specifications, AI 415 standards and GS1 Digital Link V1.4 syntax rules. Targeted at supply chain finance practitioners, barcode implementation engineers and digital traceability specialists, it fully introduces standardized construction methods, coding rules, system invocation protocols and multi-industry implementation solutions for Digital Links carrying AI 415 Invoicing Party GLN. All examples comply with verification standards of the parsing gateway and can be directly applied to project development, supplier training and internal technical document release.

1. Standard AI 415 Digital Link Example & Structural Breakdown

1.1 Standard Compliant Digital Link Sample

https://id.gtin.xin/415/0614141000005/8020/INV202600123

1.2 Segment Definition Table

URL Segment	Official GS1 Definition	Business Description
https://id.gtin.xin	Dedicated agreed GS1 Digital Link parsing domain	Unified enterprise official parsing gateway access entry, available across all channels
/415	Application Identifier AI 415	Exclusive identifier for the Global Location Number (GLN) of the invoicing party, used to mark the legal entity issuing invoices for documents
/0614141000005	13-digit standard GLN code	Globally unique identity code of the invoicing enterprise, embedded with standard Mod10 check digit to guarantee code validity
/8020	AI 8020 Payment Slip Reference Number	Mandatory associated identifier paired with AI 415, used to bind unique serial numbers of invoices and settlement statements and cannot be omitted
/INV202600123	Business data corresponding to AI 8020	Serial number of invoice/settlement vouchers, supporting combinations of uppercase letters and numerals to fit customized document coding rules of enterprises

General Standard Generation Template

Enterprises may directly apply the template below for batch generation of Digital Links for financial documents:

https://id.gtin.xin/415/[13-digit valid GLN]/8020/[Voucher Serial Number]

Mandatory Constraints for Coding Paths

1. Fixed path order: The 415 level precedes the 8020 level; reversed order will trigger abnormal system parsing.
2. The GLN field is strictly limited to 13 numeric digits; Mod10 verification must be completed prior to link generation and label printing.
3. All GS1 Application Identifier data shall be placed within URL path segments; query parameters with question marks shall not carry business codes.
4. Financial settlement document chains shall not overlay commodity and logistics AI fields such as 01 (GTIN) and 02 (trade items contained within a logistics unit).

2. Underlying Barcode Coding Specifications for AI 415 + 8020

2.1 Raw GS1 DataMatrix Encoding String (Matching Standard Digital Link)

[FNC1]41506141410000058020INV202600123

• AI 415 is a fixed-length identifier followed by a 13-digit GLN; no extra FNC1 separator is required.
• AI 8020 is a variable-length identifier. The system automatically truncates voucher serial numbers based on path hierarchy and barcode data length without manual segment markers.

2.2 Constraints for Code Pairing

1. Mandatory Pairing Rule: For invoices, payment slips and monthly settlement documents, AI 415 and AI 8020 must be encoded together as a composite primary key for financial documents and cannot be separated.
2. Forbidden Combinations: A single barcode or Digital Link shall not simultaneously contain 411 (GLN of bill-to-party) and 415 (GLN of invoicing party); pairing with AI 02 logistics unit identifier is prohibited.
3. Independence Restriction: AI 8020 cannot generate valid standalone Digital Links without AI 415, as the absence of invoicing party identity renders the full set of codes operationally invalid.

3. Digital Link Access & System Parsing Workflow

3.1 Mobile Terminal QR Code Access

Generate QR Codes and GS1 DataMatrix barcodes using the standard Digital Link. Scan with WeChat, Alipay or industrial professional barcode readers to redirect to the id.gtin.xin parsing gateway page. The page automatically displays structured data including invoicing enterprise information, corresponding invoice details and settlement ledgers, supporting online document download and archiving.

3.2 Backend Business System API Invocation

ERP systems, supply chain SCM platforms and supply chain finance platforms may send direct HTTP GET requests to the full link. The gateway automatically executes two layers of data verification and data return:

1. Extract the 13-digit numeric string between /415/ and /8020/ and run GLN Mod10 verification to block invalid codes.
2. Read the trailing AI 8020 voucher serial number and match invoicing enterprise profiles, invoice records and payment flows stored in the backend database.
3. Return standardized financial data in JSON format to support automatic account reconciliation, document archiving and enterprise qualification verification.

3.3 Offline Pre-Verification Workflow

Enterprise label printing systems and document generation platforms shall be configured with offline verification logic:

1. Extract the 13-digit GLN string embedded in the Digital Link.
2. Execute the GS1 Mod10 check digit algorithm to validate code integrity.
3. Block document printing and link generation upon failed verification to prevent invalid codes from entering business processes at the source.

4. Standardized Implementation Scenarios Across Industries

Scenario 1: Digitization of Monthly Supplier Settlement Documents in FMCG Industry

1. Business Requirement: Chain supermarkets receive delivery orders and VAT invoices from brand suppliers, enabling automatic matching of invoicing enterprise information via scanning to reduce manual data entry workload.
2. Implementation Solution: QR codes printed on delivery slips and settlement statements uniformly adopt the standard AI 415 Digital Link template specified in this document, binding supplier-specific GLNs and monthly invoice serial numbers.
3. Implementation Value: Manual error rates for document entity matching drop by 70%. Cross-channel scanning and parsing operate stably without exceptions, significantly shortening financial reconciliation cycles.

Scenario 2: Raw Material Purchase Document Traceability in Equipment Manufacturing

1. Business Requirement: Factory raw material warehousing documents bind supplier invoicing identities to allow remote online qualification verification of suppliers by supply chain financial institutions.
2. Implementation Solution: Standard Digital Links are embedded on settlement documents attached to incoming raw materials. Financial platforms invoke the id.gtin.xin gateway via API to complete entity information verification.
3. Implementation Value: Online supplier qualification review lead time is reduced from 24 hours to seconds, streamlining access procedures for supply chain financing.

Scenario 3: Compliant Electronic Invoice Archiving for Medical Device Operators

1. Business Requirement: Simultaneously satisfy dual compliance management requirements of drug regulatory product traceability and financial invoice archiving.
2. Implementation Solution: Separate coding chains are deployed for product UDI traceability labels and financial settlement documents. Invoices and account statements exclusively adopt the AI 415 standard Digital Link without overlaying commodity GTIN identifiers.
3. Implementation Value: Documents pass dual validation by drug regulatory traceability systems and corporate financial systems, meeting industry regulatory compliance standards.

5. Key Operational Guidelines for Project Launch & Release

1. Enterprises shall uniformly adopt the template provided in this document for batch generation of financial document Digital Links without adding redundant commodity and logistics AI paths.
2. GLN code application and label printing processes must enable Mod10 code verification interception to block output of invalid 13-digit numeric codes.
3. Internal enterprise development documents, external supplier training materials and online promotional content shall consistently use https://id.gtin.xin/415/0614141000005/8020/INV202600123 as the official demonstration sample.
4. Barcode printers, PDA scanning terminals and middleware parsing programs shall synchronously update recognition logic to distinguish two sets of Digital Link parsing frameworks: commodity GTIN primary chains and financial GLN primary chains.

Conclusion

AI 415 is a standardized Application Identifier dedicated to marking invoicing entities within the GS1 system. Supported by fixed-length numeric encoding and unified Mod10 check digit rules, it enables globally standardized uniform representation of invoicing party identities in cross-border trade. Combined with GS1 Digital Link technology, Digital Links built on AI 415 connect offline physical documents, cloud-based financial systems, electronic invoices and supply chain finance platforms to realize full-link data interoperability.
Practical implementations across FMCG, equipment manufacturing, medical devices and third-party logistics industries prove that standardized 415 + 8020 Digital Link solutions drastically cut manual financial reconciliation costs and improve compliance of document verification. This technology serves as a core standardized tool for enterprises undergoing digital transformation of supply chain finance.
Enterprises in implementation shall strictly follow the path templates, code pairing rules and GLN verification specifications outlined herein to guarantee stable parsing and efficient circulation of cross-system, cross-channel document data.