Reference
Markdown exportBT-155 Invoice Line Item Seller Identifier
An identifier assigned by the seller to the item.
Quick answer
Line items
The goods or services on each invoice line, including quantities, prices, and VAT.
Quick actions
In plain language
An identifier assigned by the seller to the item.
An identifier assigned by the seller to the item.
The seller’s own article number, such as a SKU. The seller uses it to match the line to its catalogue and ERP records; the buyer can quote it in reorders, delivery checks, and complaints.
What you usually enter here
Seller-assigned item identifier
Typical valid values include: SKU-1234
Defined by EN 16931 for invoice line item identification; mandatory item names and optional identifiers must follow the listed scheme and country code rules.
What goes wrong often
Avoid values like:
Examples in context
The seller’s own article number, such as a SKU. The seller uses it to match the line to its catalogue and ERP records; the buyer can quote it in reorders, delivery checks, and complaints.
Defined by EN 16931 for invoice line item identification; mandatory item names and optional identifiers must follow the listed scheme and country code rules.
Valid Examples
- SKU-1234
XML mapping and field facts
Open the technical reference if you need XML paths, validator rule codes, legal wording, or schema-specific mapping details.
Field ID:
BT-155
Data Type:
identifier
Cardinality:
0..1
Requirement:
Optional
Since Version:
Optional
XML Implementation
/Invoice/cac:InvoiceLine/cac:Item/cac:SellersItemIdentification/cbc:IDNext step
Create an XRechnung from your PDF
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Why the standard cares about this field
Business Context
The seller’s own article number, such as a SKU. The seller uses it to match the line to its catalogue and ERP records; the buyer can quote it in reorders, delivery checks, and complaints.
Legal Requirement
Defined by EN 16931 for invoice line item identification; mandatory item names and optional identifiers must follow the listed scheme and country code rules.