Valid or blank VAT rejected at checkout
Valid or optional VAT numbers are rejected at checkout with a not valid message, so customers cannot place orders.
Tier II · Emerging Problems that are still building up.
3 public reports · first reported 17 November 2025 · last reported 25 July 2026
What's going wrong
Shop owners report that the plugin shows a VAT invalid error even when the field is optional and left blank, and that valid numbers pass VIES checks yet still fail at order placement.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 3 reports are about, and how many came each month.
- Related problems.
No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.