warningPEPPOL_BIS

PEPPOL-COMMON-R044:IPA Code (Codice Univoco Unità Organizzativa) must be stated in the correct format

Italian IPA Code (Codice Univoco Unità Organizzativa) must follow the correct format. This 6-character alphanumeric code identifies public administration offices for e-invoicing.

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Why This Error Matters

Invoice will be rejected by Italian SDI system. Valid IPA code is mandatory for invoices to Italian public administration.

Common Causes

  • IPA code has wrong length
  • Invalid characters in IPA code
  • Code not registered in IPA index
  • Typo in IPA code entry
  • Old or deactivated IPA code used

Frequently Asked Questions

Italian IPA Code (Codice Univoco Unità Organizzativa) must follow the correct format. This 6-character alphanumeric code identifies public administration offices for e-invoicing.
Italian IPA Code (Codice Univoco Unità Organizzativa) must follow the correct format. This 6-character alphanumeric code identifies public administration offices for e-invoicing. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
PEPPOL-COMMON-R044 is a warning that may not always cause rejection, but it indicates a potential compliance issue that should be addressed.
Many instances of PEPPOL-COMMON-R044 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues.

Last updated: 16 January 2026

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