# BT-56 Buyer contact point

Contact person or department on the buyer side.

## Quick answer

Contact person or department on the buyer side.

> **Buyer details**: Who receives the invoice and which buyer records or routing data must match.

## In plain language

Contact person or department on the buyer side.

Contact person or department on the buyer side.

Use this when the invoice needs to name the operational recipient instead of only the legal buyer entity.

## What you usually enter here

Person or department name

Typical valid values include: AP Team

Optional according to EN 16931-1.

## What goes wrong often

Avoid values like:

## Examples in context

Use this when the invoice needs to name the operational recipient instead of only the legal buyer entity.

Optional according to EN 16931-1.

## Valid Examples

- AP Team

## Related Fields

Use this when the invoice needs to name the operational recipient instead of only the legal buyer entity.

- [BT-57 Buyer contact telephone number](/resources/xrechnung/bt-57-buyer-contact-telephone-number)
- [BT-58 Buyer contact email address](/resources/xrechnung/bt-58-buyer-contact-email-address)

## 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-56

### Data Type:
text

### Cardinality:
0..1

### Requirement:
Optional

### Max Length:
100 characters

### Since Version:
Optional

## XML Implementation

### UBL 2.1 Syntax
```
/Invoice/cac:AccountingCustomerParty/cac:Party/cac:Contact/cbc:Name
```

### CII (UN/CEFACT) Syntax
```
/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeAgreement/ram:BuyerTradeParty/ram:DefinedTradeContact/ram:PersonName
```

## Why the standard cares about this field

### Business Context
Use this when the invoice needs to name the operational recipient instead of only the legal buyer entity.

### Legal Requirement
Optional according to EN 16931-1.

## Official sources and tools

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