# BT-139 Descrizione dell'articolo della riga di fattura

Descrizione che fornisce dettagli aggiuntivi sull'articolo nella riga di fattura.

## Risposta rapida

Descrizione che fornisce dettagli aggiuntivi sull'articolo nella riga di fattura.

> **Righe fattura**: Beni o servizi per riga, con quantita, prezzi e IVA.

## Spiegazione semplice

Descrizione che fornisce dettagli aggiuntivi sull'articolo nella riga di fattura.

Descrizione che fornisce dettagli aggiuntivi sull'articolo nella riga di fattura.

Fornisce contesto e specifiche aggiuntive per l'articolo.

## Cosa inserire di solito

Free text detailed description

Valori tipicamente validi sono: High-performance laptop with 16GB RAM and 512GB SSD, Monthly consulting services for Q1 2024, Office supplies including pens, paper, and folders

Facoltativo ma consigliato per chiarezza secondo EN 16931-1.

## Errori frequenti

Evita valori come: , AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Codici di regola pertinenti: BR-2

## Esempi nel contesto

Fornisce contesto e specifiche aggiuntive per l'articolo.

Facoltativo ma consigliato per chiarezza secondo EN 16931-1.

## Esempi validi

- High-performance laptop with 16GB RAM and 512GB SSD
- Monthly consulting services for Q1 2024
- Office supplies including pens, paper, and folders

## Esempi non validi

- AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

## Campi correlati

Fornisce contesto e specifiche aggiuntive per l'articolo.

- [BT-138 Nome dell'articolo della riga di fattura](/resources/xrechnung/bt-138-invoice-line-item-name)
- [BT-140 Identificativo dell'articolo assegnato dal venditore](/resources/xrechnung/bt-140-invoice-line-item-sellers-identifier)

## Mappatura XML e dati del campo

Apri il riferimento tecnico solo se ti servono percorsi XML, codici delle regole del validator, formulazioni legali o mapping specifici di formato.

### ID campo:
BT-139

### Tipo di dato:
text

### Cardinalità:
0..1

### Requisito:
Opzionale

### Lunghezza max:
1000 caratteri

### Dalla versione:
Optional

## Implementazione XML

### Sintassi UBL 2.1
```
/Invoice/cac:InvoiceLine/cac:Item/cac:ItemDescription
```

### Sintassi CII (UN/CEFACT)
```
/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeSettlement/ram:SpecifiedTradeSettlementLineMonetarySummation/ram:SpecifiedTradeProduct/ram:Description
```

## Regole di validazione

### BR-2
BR-2

## Perche lo standard considera questo campo importante

### Contesto aziendale
Fornisce contesto e specifiche aggiuntive per l'articolo.

### Requisito legale
Facoltativo ma consigliato per chiarezza secondo EN 16931-1.

## Fonti ufficiali e strumenti

- [Validatore KoSIT](https://erechnungsvalidator.service-bw.de/)
- [Invoice Converter](/pdf-to-xrechnung)
- [Standard XRechnung](https://xeinkauf.de/xrechnung/)
- [Test suite](https://github.com/itplr-kosit/xrechnung-testsuite)