The buyer electronic address is missing
`Buyer electronic address` (BT-49) must be provided, together with its identification scheme.
Only the issuer holds this value: Factlint reports it and never fabricates it. Test your invoice to find out whether it is affected.
The message your validator prints
Copied verbatim from the sealed artefact: this is the exact sentence the check prints when this rule fails.
Buyer electronic address MUST be provided
Quoted from schematron-xrechnung 3.0.2, licensed under Apache-2.0.
Common searches around this code
These phrases mirror what an integrator searches for: code, syntax, rule, business field and correction.
Test your file with this error in mind
Upload the invoice involved: the report will say whether this code appears, where it appears in the document, and whether Factlint can only report it or also fix it.
To automate this check in an ERP flow, call the validation API and link every returned code to its public page.
Why this error happens
This is the buyer's routing address, not a mailbox: it carries a scheme (`EM` for an email, `0204` for a Leitweg-ID, `9958` for a German Peppol identifier). Without it the document is valid but unroutable — and an exchange network refuses it before reading it.
How to fix it
Fill in the address and its scheme in the customer record. Factlint does not fabricate it: an invented routing address sends the invoice to somebody else.
XML correction example
<!-- ram:BuyerTradeParty/ram:URIUniversalCommunication/ram:URIID absent -->
<ram:URIID schemeID="0088">5790000435975</ram:URIID>