This validation checks if the same invoice has already been registered.
| Item | Description |
|---|---|
| Technical Name | validate_uniqueness |
| Availability | Generic |
When does this validation fail?
- Another non-rejected invoice exists with:
- the same supplier
- the same invoice number (case insensitive)
- the same financial year
- Supplier is empty
- Invoice number is empty
- Invoice date is empty (if financial year check applies)
Additional information
This validation checks:
- All non-rejected invoices from the same supplier;
- With the same invoice number (case sensitive);
- Within the same year as the year of the invoice date (for example, ‘2025’). Applicable to all ERP systems, except Exact Online.
The validation is independent of the company.
More information
An overview of all business validations is available in the article Business validations - overview.