BR-65

Explanation

When an item classification (BT-158) is provided — e.g., UNSPSC or eClass — it must be qualified by a scheme identifier (UNTDID 7143).

How to fix

Add a scheme identifier to the item classification. (Typically a software-side issue, not user input — raise this with your invoicing software vendor; if you're receiving the invoice, ask the sender to address it with theirs.)