errorESPSII

SII-001:Clave de régimen especial missing

SII requires a regime key (clave de régimen especial) for each invoice indicating the type of operation: 01=General, 02=Export, 03=Gold operations, etc.

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How to Fix It

Common Causes

  • Missing regime key configuration
  • Wrong code for operation type
  • Intra-community not properly coded

Frequently Asked Questions

SII requires a regime key (clave de régimen especial) for each invoice indicating the type of operation: 01=General, 02=Export, 03=Gold operations, etc.
Set the correct clave de régimen especial for each invoice type. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, SII-001 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted by the recipient's system.
Many instances of SII-001 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues, including clave de régimen especial missing.

Last updated: 19 January 2026

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