SII-001
Error Guide
🇪🇸 SII-001: Clave de régimen especial missing in Spain
ErrorB2G MandatoryNeeds Input
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.
Quick Facts
Severity
Error (rejection)
Ruleset
SII
Mandate
B2G Only
Fix Type
Needs input
Why This Matters in Spain
Spain requires (B2G) e-invoicing using Facturae 3.2.x. Invoices with this error will be rejected. They cannot be processed for Spain compliance.
How to Fix SII-001
Spain E-Invoicing Requirements
Phase
Status
Scope
B2G
Live (Jan 2015)
All public administration suppliers
SII reporting
Live (Jul 2017)
Companies >€6M revenue
VeriFactu
Jan 2027 / Jul 2027
Corporations Jan 2027, all others Jul 2027
B2B e-invoicing
Pending regulation
Timeline TBD — awaiting ministerial order
Common Causes
- •Missing regime key configuration
- •Wrong code for operation type
- •Intra-community not properly coded
Fix SII-001 automatically
Upload your invoice and let Invoice Navigator auto-remediate this error.