Reference
Markdown exportBT-129 Invoice line quantity
The quantity of items (goods or services) in the invoice line.
BT-129 (Invoiced quantity) is the count of items billed on a line, paired with BT-130 (unit of measure). Mandatory under EN 16931. Decimal numbers are allowed for divisible units (e.g. hours, kilograms). Negative values represent returns. Example: 10.
BT-129 · EN 16931 / XRechnung 3.x
BT Reference Card
Canonical EN 16931 / XRechnung facts for this business term — citable from this anchor.
- BT code
BT-129- Name
- Invoice line quantity
- Cardinality
- Mandatory (M)
- Business group
- BG-25 INVOICE LINE
- Data type
- Quantity
- Example value
10
Quick answer
The quantity of items (goods or services) in the invoice line.
Line items
The goods or services on each invoice line, including quantities, prices, and VAT.
In plain language
The quantity of items (goods or services) in the invoice line.
The quantity of items (goods or services) in the invoice line.
Essential for calculating line totals and inventory management.
What you usually enter here
Decimal number with up to 2 decimal places, positive
Typical valid values include: 1, 10, 0.5, 100.25
Mandatory for each invoice line according to EN 16931-1.
What goes wrong often
Avoid values like: -1, 0, quantity
Relevant rule codes: BR-2, BR-DEC-05
Examples in context
Essential for calculating line totals and inventory management.
Mandatory for each invoice line according to EN 16931-1.
Valid Examples
Use these points as the practical checks for this section.
- 1
- 10
- 0.5
- 100.25
Invalid Examples
Use these points as the practical checks for this section.
- -1
- 0
- quantity
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-129
Data Type:
quantity
Cardinality:
1..1
Requirement:
Mandatory
Since Version:
XRechnung 1.0+
XML Implementation
/Invoice/cac:InvoiceLine/cbc:InvoicedQuantity/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeSettlement/ram:SpecifiedTradeSettlementLineMonetarySummation/ram:BilledQuantityValidation Rules
BR-2
BR-2
BR-DEC-05
BR-DEC-05
Why the standard cares about this field
Business Context
Essential for calculating line totals and inventory management.
Legal Requirement
Mandatory for each invoice line according to EN 16931-1.