SAF-T › DUKIntegrator D406 errors

"Invalid format for CustomerID …": wrong partner ID format

The exact DUKIntegrator message

E: MasterFiles (1) sectiune Customers (1) sectiune Customer (1) sectiune CustomerID (1)
 eroare regula: CustomerID: Pentru CustomerID RO76543210 formatul este invalid

What it means

A customer/supplier ID in D406 is not the internal code from the software but a two-digit type followed by the tax identifier.

Common causes

• The CUI with RO ("RO12345674") or without the type ("12345674") – correct: 0012345674.
• EU partner without 01 + country code: correct 01DE123456789; outside the EU: 02 + country + tax code.
• CNP without the 03 prefix; CUI with a wrong check digit.

How to fix it

1. 00 + CUI without RO (RO companies) · 01 + country + VAT number (EU, valid in VIES) · 02 + country + code (non-EU) · 03 + CNP · 04 + internal code (individuals without CNP) · 05/06 + country + code (no VAT number, EU/non-EU) · 080000000000000 (unidentified point-of-sale customers, CustomerID only) · 09 + NIF (non-residents registered in RO).

<CustomerID>RO76543210</CustomerID>

<CustomerID>0076543210</CustomerID>

Other D406 errors

• Required element missing: "needs to appear at least 1 times"
• Required group missing: "the group needs to appear at least 1 times"
• Element repeated too often: "exceeded the maximum allowed number of occurrences"
• "unknown element … in namesapace": element not in the schema
• Missing or incorrect namespace on AuditFile
• "the value … is not in the list": code not in the ANAF nomenclature
• "the value … is out of the given interval"
• "decimal number does not match the pattern 16.2": too many decimals
• "wrong decimal number" / "wrong integer number": bad number format
• "wrong date (format: yyyy-mm-dd)"
• "string longer than N characters": text too long
• Wrong element order or misplaced section
• "Fatal parsing error": the XML cannot be read
• "not allowed content in or after the element …"
• "CustomerID cannot be 0 (zero)" in MasterFiles
• "CustomerID and SupplierID cannot both be 0" on payments
• "Invalid format for RegistrationNumber" / "invalid CIF"
• "Invalid format for IBANNumber …"
• "The account ID … must be in the chart of accounts"
• "Amount (RON) … differs from CurrencyAmount x ExchangeRate"
• "The return type … does not match the declared period"
• "For country RO the region code … is not in the list"
• "The Name element was filled … use CustomerID!"
• "For PaymentMechanism … the PaymentMethod value … is not allowed"
• "Wrong reporting period" / "wrong year-month parameter"
• "The first part of a return must contain at least one MasterFiles section"
• "TotalSegmentsInSequence should be greater than SegmentIndex"
• "MovementPostingTime must be HH:mm"