---
id: "gs1_ai_8020"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["gs1", "finances"]
langs: ["common"]
quality: 85
url: "http://registry.apicrafter.io/datatype/gs1_ai_8020"
---

# Payment slip reference number (GS1 AI 8020) (`gs1_ai_8020`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

GS1 element string of Application Identifier (8020): '8020' followed by the reference number of a payment slip, up to 25 characters, used with the GLN of the invoicing party in AI (415). GS1 format N4+X..25. It is a key qualifier in GS1 Digital Link. In the human-readable text under a barcode it is written as (8020) and the value.

- Personal data (PII): no
- Categories: GS1 standards (gs1), Finances and banking (finances)
- Countries: global
- Languages: Common to most languages (common)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
^8020[!%-?A-Z_a-z\x22]{1,25}$
```

## Examples

- `8020INV2026-0017` — Synthetic reference INV2026-0017
- `8020RF-88213` — Synthetic reference RF-88213
- `8020` (invalid example) — No reference

## Mappings

- gs1_ai: `8020`

## Sources

- doc: <https://ref.gs1.org/ai/8020>

## Quality

Score 85/100. Missing: translation, detector coverage.

JSON: <http://registry.apicrafter.io/api/v1/datatypes/gs1_ai_8020.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/any/gs1/gs1_ai_8020.yaml>