Follow-up to discussion in #4657 with @MatthiasWiesmann.

Problem Definition

As discussed in #4657 with @MatthiasWiesmann, schema:Product currently lacks a standardized way to distinguish between different roles of a product component (e.g., Spare Part vs. Consumable vs. Raw Material).

For the Digital Product Passport (ESPR), alignment with industrial standards is critical for ERP/EDI interoperability.

Proposal

We propose introducing support for UN/CEFACT UNCL 1001 codes to classify product roles.

Proposed Property: hasProductRole (or unCeFactCode)
Expected Values:

• 233 (Spare part order)
• 711 (Supply item / Consumable)
• 380 (Commercial Item / Main Product)
• 220 (Component)

Example Usage

{
"@context": "https://schema.org/",
"@type": "Product",
"name": "Laptop Battery Replacement",
"hasProductRole": {
"@type": "PropertyValue",
"propertyID": "UNCL1001",
"value": "711",
"name": "Consumable"
}
}

text

This ensures we don't reinvent the wheel and stay compatible with global supply chain standards.