My entire exported XML file:
<?xml version="1.0" encoding="utf-8"?>
<ns1:Invoice xmlns:ns1="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2">
<ns2:UBLVersionID
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">2.1</ns2:UBLVersionID>
<ns2:CustomizationID
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">urn:www.cenbii.eu:transaction:biitrns010:ver2.0:extended:urn:www.peppol.eu:bis:peppol4a:ver2.0:extended:urn:www.simplerinvoicing.org:si:si-ubl:ver1.1.x
RECHTSTREEKS UIT VOORBEELD GEKOPIEERD</ns2:CustomizationID>
<ns2:ProfileID xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">urn:www.cenbii.eu:profile:bii04:ver2.0
RECHTSTREEKS UIT VOORBEELD GEKOPIEERD</ns2:ProfileID>
<ns2:ID xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
testdata</ns2:ID>
<ns2:IssueDate xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
2024-04-25</ns2:IssueDate>
<ns2:InvoiceTypeCode
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">1</ns2:InvoiceTypeCode>
<ns2:DocumentCurrencyCode
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">EUR</ns2:DocumentCurrencyCode>
<ns3:OrderReference
xmlns:ns3="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2">
<ns2:ID xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
HIERMOETIETSKOMEN</ns2:ID>
</ns3:OrderReference>
<ns3:AccountingSupplierParty
xmlns:ns3="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2">
<ns3:Party>
<ns3:PartyName>
<ns2:Name
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">testdata</ns2:Name>
</ns3:PartyName>
<ns3:PostalAddress>
<ns2:StreetName
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
test</ns2:StreetName>
<ns2:BuildingNumber
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
1</ns2:BuildingNumber>
<ns2:CityName
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
test</ns2:CityName>
<ns2:PostalZone
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">Postcode</ns2:PostalZone>
<ns3:Country>
<ns2:IdentificationCode
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
listID="ISO3166-1:Alpha2" listAgencyID="6">NL</ns2:IdentificationCode>
</ns3:Country>
</ns3:PostalAddress>
<ns3:PartyTaxScheme>
<ns2:CompanyID
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
schemeID="NL:VAT" schemeAgencyID="ZZZ">test</ns2:CompanyID>
<ns3:TaxScheme>
<ns2:ID
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
schemeID="UN/ECE 5153" schemeAgencyID="6">test</ns2:ID>
</ns3:TaxScheme>
</ns3:PartyTaxScheme>
<ns3:PartyLegalEntity>
<ns2:CompanyID
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
schemeID="NL:KVK">test</ns2:CompanyID>
</ns3:PartyLegalEntity>
<ns3:Contact>
<ns2:ElectronicMail
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
test</ns2:ElectronicMail>
</ns3:Contact>
</ns3:Party>
</ns3:AccountingSupplierParty>
<ns3:AccountingCustomerParty
xmlns:ns3="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2">
<ns3:Party>
<ns3:PartyName>
<ns2:Name
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
flopi7</ns2:Name>
</ns3:PartyName>
<ns3:PostalAddress>
<ns2:StreetName
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
test</ns2:StreetName>
<ns2:BuildingNumber
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
2</ns2:BuildingNumber>
<ns2:CityName
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
test</ns2:CityName>
<ns2:PostalZone
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">test</ns2:PostalZone>
</ns3:PostalAddress>
<ns3:PartyLegalEntity />
</ns3:Party>
</ns3:AccountingCustomerParty>
<ns3:PaymentMeans
xmlns:ns3="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2">
<ns2:PaymentMeansCode
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
listID="UNCL4461">test</ns2:PaymentMeansCode>
<ns3:PayeeFinancialAccount>
<ns2:ID xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
test</ns2:ID>
<ns3:FinancialInstitutionBranch>
<ns3:FinancialInstitution>
<ns2:ID
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
test</ns2:ID>
</ns3:FinancialInstitution>
</ns3:FinancialInstitutionBranch>
</ns3:PayeeFinancialAccount>
</ns3:PaymentMeans>
<ns3:PaymentTerms
xmlns:ns3="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2">
<ns2:Note xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">Ttest</ns2:Note>
</ns3:PaymentTerms>
<ns3:TaxTotal
xmlns:ns3="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2">
<ns2:TaxAmount
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
currencyID="EUR">test</ns2:TaxAmount>
<ns3:TaxSubtotal>
<ns2:TaxableAmount
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
currencyID="EUR">test</ns2:TaxableAmount>
<ns2:TaxAmount
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
currencyID="EUR">test</ns2:TaxAmount>
<ns3:TaxCategory>
<ns2:ID
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
schemeID="UNCL5305">S</ns2:ID>
<ns2:Percent
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
21</ns2:Percent>
<ns3:TaxScheme>
<ns2:ID
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
schemeID="UN/ECE 5153" schemeAgencyID="6">test</ns2:ID>
</ns3:TaxScheme>
</ns3:TaxCategory>
</ns3:TaxSubtotal>
</ns3:TaxTotal>
<ns3:LegalMonetaryTotal
xmlns:ns3="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2">
<ns2:LineExtensionAmount
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
currencyID="EUR">test</ns2:LineExtensionAmount>
<ns2:TaxExclusiveAmount
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
currencyID="EUR">test</ns2:TaxExclusiveAmount>
<ns2:TaxInclusiveAmount
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
currencyID="EUR">test</ns2:TaxInclusiveAmount>
<ns2:PayableAmount
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
currencyID="EUR">test</ns2:PayableAmount>
</ns3:LegalMonetaryTotal>
<ns3:InvoiceLine
xmlns:ns3="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2">
<ns2:ID xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">1</ns2:ID>
<ns2:InvoicedQuantity
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
unitCode="ZZ">1</ns2:InvoicedQuantity>
<ns2:LineExtensionAmount
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
currencyID="EUR">test</ns2:LineExtensionAmount>
<ns3:TaxTotal>
<ns2:TaxAmount
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
currencyID="EUR">test</ns2:TaxAmount>
</ns3:TaxTotal>
<ns3:Item>
<ns2:Name
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">Atestn</ns2:Name>
<ns3:SellersItemIdentification>
<ns2:ID
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
test</ns2:ID>
</ns3:SellersItemIdentification>
<ns3:ClassifiedTaxCategory>
<ns2:ID
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
S</ns2:ID>
<ns3:TaxScheme>
<ns2:ID
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
schemeAgencyID="6">test</ns2:ID>
</ns3:TaxScheme>
</ns3:ClassifiedTaxCategory>
</ns3:Item>
<ns3:Price>
<ns2:PriceAmount
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
currencyID="EUR">test</ns2:PriceAmount>
<ns2:BaseQuantity
xmlns:ns2="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
unitCode="ZZ">1</ns2:BaseQuantity>
</ns3:Price>
</ns3:InvoiceLine>
</ns1:Invoice>