VRBL: Specification ID
The Specification ID is used for routing.
You must use the CustomizationID element to specify urn:vertexinc:vrbl:billing:1
as the ID for the Document.
This is described in the Specification IDs topic.
Example
<Invoice>
<!-- code omitted for clarity -->
<cbc:CustomizationID>urn:vertexinc:vrbl:billing:1</cbc:CustomizationID>
<!-- code omitted for clarity -->
</Invoice>
Updated about 1 month ago