Using new identity domain to add person via PIX v3

[flavio...@coreconsulting.com.br]

Hello,

I am trying to add a person via PIX v3, identified by a new domain I created. But I always get the message:

<acknowledgementDetail>
   <code code="204"/>
   <text>Unknown Key Identifier - domain: NEWDOMAIN&amp;2.16.150.100.522.632.152.658.96&amp;ISO</text>
   <location>//controlActProcess/subject/registrationEvent/subject1/patient/id/@root='2.16.150.100.522.632.152.658.96'</location>
</acknowledgementDetail>

The root id I'm using are just for test purposes.

How do I include a new identity domain and use it with PIX/PDQ?

Thanks a lot!