Dolibarr Hook System Integration:
- Hook into invoice validation and accounting transfer events
- Automatic EU supplier detection and autoliquidation
- Custom fields for VAT processing (EU flag, transaction type)
- Batch processing for multiple invoices
- Workflow triggers for status changes
Available Hooks:
- supplier_invoice_validate: Auto-detect EU suppliers
- supplier_invoice_accountancy_transfer: Create VAT entries
- invoice_validate: Apply EU transaction rules
- invoice_accountancy_transfer: Generate accounting entries
Automation Workflow:
1. User creates EU supplier invoice
2. Hook triggers on validation
3. Auto-detect EU supplier
4. Create VAT due (4452xxx) and deductible (4456xx) entries
5. Entries ready for CA-3 calculations
Custom Fields:
- EU Supplier Flag
- VAT Treatment (autoliquidation vs normal)
- Transaction Type (B2B, B2C, special cases)
- OSS Threshold tracking
- DEB/DES requirement flags
Enhanced Features:
- Automatic VAT processing
- Reduced manual work for EU transactions
- Seamless integration with Dolibarr workflow
- Custom field management
- Batch processing capabilities
Updated estimates: +44 hours for workflow integration
Total project: 456+ hours with full Dolibarr integration
Frank Cools
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