Reference
Markdown exportBT-57 Buyer contact telephone number
Telephone number for the buyer contact point.
Quick answer
Buyer details
Who receives the invoice and which buyer records or routing data must match.
Quick actions
In plain language
Provide this only when the invoice recipient expects telephone contact details in the structured invoice.
What you usually enter here
Telephone number
Typical valid values include: +49 30 123456
Optional according to EN 16931-1.
Where the field sits
- Invoice
- cac:AccountingCustomerParty
- cac:Party
- cac:Contact
- cbc:TelephoneBT-57
- rsm:CrossIndustryInvoice
- rsm:SupplyChainTradeTransaction
- ram:ApplicableHeaderTradeAgreement
- ram:BuyerTradeParty
- ram:DefinedTradeContact
- ram:TelephoneUniversalCommunication
- ram:CompleteNumberBT-57
Valid Examples
- +49 30 123456
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-57
Data Type:
text
Cardinality:
0..1
Requirement:
Optional
Max Length:
50 characters
XML Implementation
/Invoice/cac:AccountingCustomerParty/cac:Party/cac:Contact/cbc:Telephone/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeAgreement/ram:BuyerTradeParty/ram:DefinedTradeContact/ram:TelephoneUniversalCommunication/ram:CompleteNumberNext step
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