Unique identifier of the line within the invoice, usually a simple running number (1, 2, 3 …). Mandatory for every line; serves as the anchor for queries and references.
cac:InvoiceLine/cbc:IDram:IncludedSupplyChainTradeLineItem/ram:AssociatedDocumentLineDocument/ram:LineID Part of BG-25 Invoice line
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Semantics: EN 16931-1. Simplified explanation in our own words — the norm is authoritative.