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Troubleshooting > Swiss UID failed

Troubleshooting

Swiss UID failed

What you’re seeing: Swiss UID checks fail or return an error.

Check Swiss UID connectivity

First, confirm your server can reach the Swiss UID API:

  1. Go to EU VAT Checker → Dashboard
  2. Find the Environment Status section
  3. Check that Swiss UID reachability shows ✓ 200 OK

Confirm CHE Validation settings

  1. Go to EU VAT Checker → CHE Validation
  2. Make sure Swiss UID validation is enabled
  3. Save your changes if you updated anything

If it keeps failing

  • •Wait and retry (the Swiss UID service may be temporarily unavailable)
  • •Check firewall rules for outbound HTTPS requests
  • •Ask your host to allow https://www.uid-wse.admin.ch/V3.0/PublicServices.svc?wsdl