E-Invoice Error Reference
1350+ documented errors for Peppol, UBL, CII, and EN16931 validation errors.
344 errors found · Page 6 of 7 in Business Rules
PEPPOL-EN16931-R051Peppol BIS 3.0AUTO-FIXCurrency codes are not consistent
All amounts in the invoice must use the same currency, matching the document currency code. For example, if the invoice is in EUR, every amount, tax total, line item, and allowance/charge must also use EUR as the currency code. The only exception is the accounting currency tax amount (BT-111).
PEPPOL-EN16931-R121Peppol BIS 3.0AUTO-FIXBase quantity must be positive
Price base quantity must be > 0.
PEPPOL-EN16931-R020Peppol BIS 3.0INPUTSeller electronic address missing
Your invoice is missing the seller electronic address (EndpointID). This is required for Peppol network routing — without it, the invoice cannot be delivered to the buyer.
DE-R-030DEUEN 16931AUTO-FIXCreditor identifier missing. When direct debit (BG-19) is used, the bank...
Creditor identifier missing. When direct debit (BG-19) is used, the bank assigned creditor identifier (BT-90) is required for SEPA direct debit.
PEPPOL-EN16931-R010Peppol BIS 3.0INPUTBuyer electronic address required
Peppol invoices MUST include a buyer electronic address (BT-49) with a valid EndpointID and schemeID for network routing.
DE-R-009DEUEN 16931INPUTThe element "Buyer post code" (BT-53) shall be provided.
Buyer postal code is missing. German invoices must include the buyer's postal code (BT-53).
PEPPOL-EN16931-R061Peppol BIS 3.0INPUTMissing direct debit mandate reference
When payment is by direct debit (SEPA or other), the invoice must include the mandate reference number. This is the unique identifier of the agreement that authorizes the seller to collect payment from the buyer's bank account.
IN-SELLER-ENDPOINT-SCHEMEPeppol BIS 3.0AUTO-FIXSeller endpoint scheme ID validation
Electronic address schemeID must be from Peppol participant identifier schemes. Invoice Navigator can auto-derive the correct scheme based on country.
IN-BUYER-ENDPOINT-SCHEMEPeppol BIS 3.0AUTO-FIXBuyer endpoint is missing its scheme identifier
The buyer's electronic address (EndpointID) in your invoice does not have a schemeID attribute. The schemeID tells the Peppol network what type of identifier is being used — for example, whether it is a GLN number, a VAT registration number, or a chamber of commerce number. Without this, the invoice cannot be delivered.
BR-27EN 16931INPUTThe Item net price (BT-146) shall NOT be negative.
The Item net price (BT-146) shall NOT be negative.. Review the `cbc:PriceAmount` element.
BR-63EN 16931INPUTBuyer electronic address is missing its scheme identifier
Your invoice includes a buyer electronic address (EndpointID), but it does not specify what type of identifier it is. The scheme identifier tells the receiving system whether the address is a GLN number, a VAT number, a chamber of commerce number, or another type. Without it, the Peppol network cannot route the invoice to the correct recipient.
IN-TAX-CATEGORY-CODESPeppol BIS 3.0BLOCKEDTax category codes validation
Tax category codes should be from UNCL5305 Peppol subset (AE, E, G, K, L, M, O, S, Z)
BR-CL-20EN 16931AUTO-FIXCoded charge reasons MUST belong to the UNCL 7161 code list
A Charge Reason Code is not a valid UNCL 7161 code. Common codes: FC=freight, AAA=advertising, ABL=handling, DL=delivery.
BR-AF-06EN 16931BLOCKEDWhen a document level allowance uses the IGIC VAT category, the VAT rate...
When a document level allowance uses the IGIC VAT category, the VAT rate must be 0% or greater.
PEPPOL-INV-ITEM-IDPeppol BIS 3.0BLOCKEDItem identification SHOULD be provided for better interoperability
Item identification SHOULD be provided for better interoperability. This applies to the `cbc:ID` element in the invoice XML.
SE-R-003Peppol BIS 3.0AUTO-FIXSwedish organisation numbers should be numeric.
Swedish organization numbers must contain only numeric characters. No letters or special characters allowed.
PEPPOL-EN16931-R008Peppol BIS 3.0AUTO-FIXDocument MUST not contain empty elements.
The document must not contain empty XML elements. All elements that are present must have content - empty tags are not allowed in PEPPOL invoices.
PEPPOL-EN16931-R043Peppol BIS 3.0AUTO-FIXAllowance/charge ChargeIndicator value MUST equal "true" or "false"
The ChargeIndicator on one of your discounts or surcharges is not in the correct format. It must be exactly "true" (for a surcharge) or "false" (for a discount), in lowercase.
IN-PAYMENT-MEANS-CODESPeppol BIS 3.0BLOCKEDPayment means codes validation
Payment means codes should be from recommended UNCL4461 subset
UBL-SR-12EN 16931AUTO-FIXSeller VAT identifier shall occur maximum once
Your invoice contains multiple Seller VAT identifiers (PartyTaxScheme with VAT scheme). EN16931 allows only one VAT identifier per seller.
IN-UNIT-CODESPeppol BIS 3.0BLOCKEDUnit of measure codes validation
Unit codes should be from UN/ECE Recommendation 20
PEPPOL-COMMON-R040Peppol BIS 3.0INPUTGLN must have a valid format according to GS1 rules
GLN must have a valid format according to GS1 rules. This validation rule ensures Invoice compliance with Peppol BIS 3.0.
PEPPOL-COMMON-R041Peppol BIS 3.0AUTO-FIXNorwegian organization number MUST be stated in the correct format.
Norwegian organization numbers must follow the correct format. The organization number is a 9-digit identifier assigned by Brønnøysund Register Centre.
PEPPOL-COMMON-R042Peppol BIS 3.0AUTO-FIXDanish organization number (CVR) MUST be stated in the correct format.
Danish organization numbers (CVR) must follow the correct format. CVR is an 8-digit identifier assigned by the Danish Business Authority.
UBL-SR-47EN 16931AUTO-FIXMultiple different payment methods on one invoice
Your invoice has multiple payment means sections with different payment method codes. The UBL standard requires that all payment means on a single invoice use the same payment method code.
PEPPOL-COMMON-R043Peppol BIS 3.0AUTO-FIXBelgian enterprise number MUST be stated in the correct format.
Belgian enterprise numbers must follow the correct format. The enterprise number is a 10-digit identifier (0XXX.XXX.XXX format) assigned by the Crossroads Bank for Enterprises.
PEPPOL-COMMON-R045Peppol BIS 3.0AUTO-FIXTax Code (Codice Fiscale) must be stated in the correct format
Italian Tax Code (Codice Fiscale) must follow the correct format. For individuals, this is a 16-character alphanumeric code; for companies, it may be an 11-digit VAT number.
PEPPOL-COMMON-R046Peppol BIS 3.0AUTO-FIXTax Code (Codice Fiscale) must be stated in the correct format
Italian Tax Code (Codice Fiscale) must follow the correct format. This validation applies to a different location in the invoice where tax codes appear.
PEPPOL-COMMON-R044Peppol BIS 3.0AUTO-FIXItalian office code (IPA) has wrong format
The Italian IPA code (Codice Univoco Unità Organizzativa) on your invoice is not in the correct format. It must be exactly 6 uppercase letters and/or digits.
BR-01EN 16931AUTO-FIXInvoice must have specification identifier
Every Peppol BIS invoice must include a specification identifier (CustomizationID) that indicates which profile the invoice conforms to.
BR-23EN 16931AUTO-FIXMissing unit of measure code
Each Invoice line shall have an Invoiced quantity unit of measure code (BT-130). This identifies the unit of measure for the invoiced quantity using UN/ECE Recommendation 20 codes.
BR-30EN 16931AUTO-FIXInvoice line period end date before start date
If both Invoice line period start date (BT-134) and Invoice line period end date (BT-135) are given then the end date shall be later or equal to the start date.
PEPPOL-COMMON-R047Peppol BIS 3.0AUTO-FIXItalian VAT Code (Partita Iva) must be stated in the correct format
Italian VAT Code (Partita IVA) must follow the correct format. This is an 11-digit number prefixed with "IT" for international use.
BR-51EN 16931AUTO-FIXPayment card primary account number not masked
The invoice contains a full credit card number (BT-87), which violates PCI security standards. Only the first 6 and last 4 digits should be shown.
BR-53EN 16931BLOCKEDVAT amount in accounting currency is missing
Your invoice declares a tax accounting currency (different from the invoice currency), but the total VAT amount in that accounting currency is not provided. When using a separate tax currency, you must include the VAT total in both currencies.
PEPPOL-COMMON-R048Peppol BIS 3.0AUTO-FIXItalian VAT Code (Partita Iva) must be stated in the correct format
Italian VAT Code (Partita IVA) must follow the correct format. This validation applies to another field where Italian VAT numbers appear.
PEPPOL-COMMON-R049Peppol BIS 3.0AUTO-FIXInvalid Swedish organization number
A Swedish organization number (organisationsnummer) in this invoice is not correctly formatted. Swedish org numbers must be exactly 10 digits and include a valid check digit calculated using the Luhn algorithm. This applies to any identifier using scheme 0007, including seller and buyer endpoint addresses, company registration numbers, and party identifiers.
BR-05EN 16931AUTO-FIXMissing document currency code
An Invoice shall have an Invoice currency code (BT-5). This specifies the currency used for all monetary amounts in the invoice using ISO 4217 three-letter codes.
PEPPOL-COMMON-R050Peppol BIS 3.0AUTO-FIXAustralian Business Number (ABN) MUST be stated in the correct format.
Australian Business Numbers (ABN) must follow the correct format. ABN is an 11-digit identifier with a specific check digit algorithm.
PEPPOL-EN16931-R130Peppol BIS 3.0AUTO-FIXUnit code of price base quantity MUST be same as invoiced quantity.
The unit code of the price base quantity must match the unit code of the invoiced quantity. You cannot have different units between quantity and base quantity.
BR-42EN 16931AUTO-FIXInvoice line allowance reason required
An invoice line allowance (BG-27) is missing both a reason text (BT-139) and reason code (BT-140). At least one must be provided to explain this line discount.
PEPPOL-EN16931-R055Peppol BIS 3.0AUTO-FIXInvoice total VAT amount and Invoice total VAT amount in accounting currency...
The invoice total VAT amount and VAT amount in accounting currency must have the same sign (both positive or both negative). They cannot have opposite signs.
BR-AG-05EN 16931AUTO-FIXIPSI invoice line VAT rate must be 0% or positive
When an invoice line uses the IPSI VAT category (M for Ceuta/Melilla indirect tax), the VAT rate must be 0 or greater than zero.
BR-CL-08EN 16931AUTO-FIXInvoice note has an invalid subject code
One of the notes on your invoice uses a subject code that is not in the official UN/CEFACT code list (UNCL 4451). The subject code indicates the type of note — for example, general information, regulatory, or surcharge.
PEPPOL-EN16931-R101Peppol BIS 3.0AUTO-FIXInvoice line document reference has wrong type code
A document reference on one of your invoice lines uses the wrong type code. Line-level document references in Peppol invoices must use code "130", which means "invoice line object identifier".
BR-CL-13EN 16931AUTO-FIXInvalid product classification scheme
A line item's classification code uses an invalid scheme identifier. The classification listID must be from the UNTDID 7143 code list. Common valid schemes include STI for UNSPSC, EN for eCl@ss, and CPV for EU public procurement.
PEPPOL-EN16931-R054Peppol BIS 3.0AUTO-FIXOnly one tax total without tax subtotals MUST be provided when tax currency...
When VAT accounting currency is provided, exactly one TaxTotal without subtotals must exist for that currency. This reports the total VAT in the accounting currency.
BR-CO-07EN 16931AUTO-FIXLine item discount reason text does not match the reason code
On one of your invoice lines, the discount reason code and the reason text describe different types of discounts. For example, code 95 means "Discount" but the text says something else. These must match.
PEPPOL-EN16931-R053Peppol BIS 3.0AUTO-FIXOnly one tax total with tax subtotals MUST be provided.
Only one TaxTotal element with tax subtotals (VAT breakdown) is allowed. Multiple VAT breakdowns in the same currency are not permitted.
PEPPOL-EN16931-F001Peppol BIS 3.0AUTO-FIXA date MUST be formatted YYYY-MM-DD.
A date MUST be formatted YYYY-MM-DD. This validation rule ensures Invoice compliance with Peppol BIS 3.0.
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