PEPPOL-T115-B04301

Element 'cbc:CompanyID' MUST be provided.

error: the document is invalid

What the rule checks

As the rule set's publisher wrote it. The rule runs on every element the context matches, and fails where the test is false; the validator reports the line of that element.

Context
/ubl:OrderCancellation/cac:BuyerCustomerParty/cac:Party/cac:PartyTaxScheme
Test
cbc:CompanyID

Checked with Peppol Order Cancellation