Most Common E-Invoice Errors
Even with good invoicing software, errors can occur. Here are the most common ZATCA e-invoice errors and how to resolve them.
1. Invalid VAT Number Format
Error: VAT number doesn't match the 15-digit format
Fix: Ensure VAT number is exactly 15 digits, starting with 3 and ending with 3
2. QR Code Validation Failed
Error: QR code doesn't contain required fields or wrong encoding
Fix: Verify QR contains: seller name, VAT number, timestamp, total, VAT amount in TLV format
3. Invoice Date in Future
Error: Invoice date/time is ahead of current time
Fix: Sync your system clock with NTP server
4. Duplicate Invoice Number
Error: Invoice number already exists
Fix: Implement unique sequential numbering per branch
5. Missing Mandatory Fields
Error: Required fields are empty or null
Fix: Validate all mandatory fields before submission
6. XML Schema Validation Error
Error: Invoice XML doesn't match ZATCA schema
Fix: Use validated XML templates and proper encoding
7. Cryptographic Stamp Invalid
Error: Digital signature verification failed
Fix: Check certificate validity and signing process
Prevention Tips
- Use ZATCA-certified software like FatooraPlus
- Test in sandbox before production
- Implement validation before submission
- Monitor rejection logs regularly