# BR-DE-2

Source: https://xmlvalid.com/rules/BR-DE-2

> Die Gruppe "SELLER CONTACT" (BG-6) muss übermittelt werden.

- Level: error
- Rule sets: XRechnung 3.0 rules (UBL) 2.6.0
- Context: `/ubl:Invoice/cac:AccountingSupplierParty | /cn:CreditNote/cac:AccountingSupplierParty`
- Test: `cac:Party/cac:Contact`

> Die Gruppe "SELLER CONTACT" (BG-6) muss übermittelt werden.

- Level: error
- Rule sets: XRechnung 3.0 rules (CII) 2.6.0
- Context: `/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeAgreement/ram:SellerTradeParty`
- Test: `ram:DefinedTradeContact`

## Why it fails

- An XRechnung has no seller contact: `cac:AccountingSupplierParty/cac:Party/cac:Contact` (`ram:DefinedTradeContact` in CII) is missing.

## How to fix it

- Add the seller contact with a name (BR-DE-5), a telephone number (BR-DE-6) and an email address (BR-DE-7).

Validate a document against these rules: https://xmlvalid.com/validate