# BR-DE-16 Business process type must be provided

The business process type must be provided on the invoice.

## Problem Description

The business process type must be provided on the invoice.

> **ERROR**: XRechnung 3.0

## Context and Significance

The business process type identifies which business process/profile the invoice follows. Receivers use it to apply the correct validation rules. Use the value required by your delivery channel (portal/network) and the XRechnung profile you target.

## Solution

Add the business process type to the invoice.

- validate
- convert

## Valid Examples

- A valid ProfileID/Business process identifier (usually an URN) required by the receiver

## Invalid Examples

- Missing business process type (ProfileID)
- Using an arbitrary free-text value

## Code Examples

### Valid XML
```
<cbc:ProfileID>PROFILE_ID_FROM_SPEC_OR_RECEIVER</cbc:ProfileID>
```

### Invalid XML
```
<!-- Missing cbc:ProfileID -->
```

## Technical Details

### Affected Fields
Business Process Type (ProfileID)

## Related Rules

- [BR-DE-21](/resources/kosit-validator-errors/br-de-21-specification-identifier-must-be-provided)

## Validation Tools

- [Official KoSIT Validator](https://erechnungsvalidator.service-bw.de/): Validate your XRechnung files against all BR-DE rules.
- [Convert PDF to XRechnung](/pdf-to-xrechnung): Automatic validation error fixes when converting.

## Related Resources

- [Official Specification](https://xeinkauf.de/xrechnung/)
- [Test Suite](https://github.com/itplr-kosit/xrechnung-testsuite)
- [Complete Error List](/resources/kosit-validator-errors): Overview of all German XRechnung validation rules.