Reference
Markdown exportBT-25 Preceding invoice reference
Reference to an earlier invoice that this invoice corrects, supplements, or continues.
Quick answer
Reference to an earlier invoice that this invoice corrects, supplements, or continues.
Invoice basics
Core document identifiers, dates, process identifiers, and high-level invoice context.
In plain language
Reference to an earlier invoice that this invoice corrects, supplements, or continues.
Reference to an earlier invoice that this invoice corrects, supplements, or continues.
This field is important for credit notes, corrections, and chains of invoices such as partial or final invoicing.
What you usually enter here
Referenced invoice number
Typical valid values include: INV-2025-991
Optional according to EN 16931-1, but required by the business scenario when the invoice refers back to another invoice.
What goes wrong often
Avoid values like: , AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
Examples in context
This field is important for credit notes, corrections, and chains of invoices such as partial or final invoicing.
Optional according to EN 16931-1, but required by the business scenario when the invoice refers back to another invoice.
Valid Examples
Use these points as the practical checks for this section.
- INV-2025-991
Invalid Examples
Use these points as the practical checks for this section.
- AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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-25
Data Type:
text
Cardinality:
0..1
Requirement:
Optional
Max Length:
50 characters
Since Version:
Optional
XML Implementation
/Invoice/cac:BillingReference/cac:InvoiceDocumentReference/cbc:ID/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeSettlement/ram:InvoiceReferencedDocument/ram:IssuerAssignedIDWhy the standard cares about this field
Business Context
This field is important for credit notes, corrections, and chains of invoices such as partial or final invoicing.
Legal Requirement
Optional according to EN 16931-1, but required by the business scenario when the invoice refers back to another invoice.