---
id: "gs1_ai_235"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["gs1", "objectids"]
langs: ["common"]
quality: 85
url: "http://registry.apicrafter.io/datatype/gs1_ai_235"
---

# Third-party controlled serialised extension of GTIN (TPX) (GS1 AI 235) (`gs1_ai_235`)

> **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 (235): '235' followed by a serialised extension of the GTIN in AI (01), up to 28 characters, that a third party assigns and controls. GS1 format N3+X..28. It is a key qualifier in GS1 Digital Link. In the human-readable text under a barcode it is written as (235) and the value.

- Personal data (PII): no
- Categories: GS1 standards (gs1), Objects identifiers (objectids)
- Countries: global
- Languages: Common to most languages (common)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
^235[!%-?A-Z_a-z\x22]{1,28}$
```

## Examples

- `235XC5F7G8H9J2` — Synthetic extension XC5F7G8H9J2
- `235TPX7781QW` — Synthetic extension TPX7781QW
- `235AAAAAAAAAAAAAAAAAAAAAAAAAAAAA` (invalid example) — Longer than 28 characters

## Mappings

- gs1_ai: `235`

## Sources

- doc: <https://ref.gs1.org/ai/235>

## Quality

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

JSON: <http://registry.apicrafter.io/api/v1/datatypes/gs1_ai_235.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/any/gs1/gs1_ai_235.yaml>