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.
We can help you fix this
NEEDS INPUTAnswer a few questions and we will fix it for you.
Simple form - we handle the XML for you
Upload and Answer QuestionsHow 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
Share this guide: