XRechnung 2.6.0 · UBLStored validation assertion
UBL-SR-44
XRechnung 2.6.0 · UBL
fatalschema
Original rule text
[UBL-SR-44]-An Invoice may only have one unique PaymentID, but the PaymentID may be used for multiple PaymentMeans
count(//cbc:PaymentID[not(preceding::cbc:PaymentID/. = .)]) <= 1