The 5 most common validation errors
Almost all rejections stem from a few recurring issues, all of which can be prevented during the drafting stage.
- VAT numbers or partner identification data that do not match official registries.
- VAT rates incompatible with the declared type of transaction.
- Missing mandatory legal mentions for reverse charges or tax exemptions.
- Incorrect references to the original invoice when issuing a credit note.
- Units of measure or product codes that do not comply with standard codification (UN/CEFACT).





