Workflow or API calls:
Reminder: If this is referring to a client domain or EHR activity—not the public sandbox—do not include API request data or live patient data.
Background Information:
Failure to provide answers will impact our ability to respond in a timely and effective manner
Developer questions:
Are you an OPN Member? No
Have you signed up to be in the Healthcare Developer Track? No
Are you a registered Code Program member? No
Does your App have a presence on the Oracle Healthcare App Marketplace? No
Are you developing on behalf of an Oracle Health client?
If so, which client:
CHOC
Children's Hospital of Orange County, part of Rady Children's Health

Children's Hospital of Orange County
https://choc.org
Hello, I'm doing some request to send Message at this endpoint:
https://api.sandboxcernermillennium.com/{tenantID}/message/20241001/actions/updatePatientMessageStatus
curl --location 'https://api.sandboxcernermillennium.com/{tenantID}/20241001/actions/updatePatientMessageStatus
--header 'Accept: application/json' \
--header 'Content-Type: application/ehr+json' \
--header 'Authorization: Bearer {token}' \
--data-raw '{
"messages": [
{
"id": "3256818169.0.-4.prsnl",
"notificationVersion": 0,
"recipientNotificationVersion": 0
}
],
"patientId": "somePatientID",
"status": "UNREAD"
}'
And I have this response
{
"message": "code=\"urn:cerner:error:gateway:routing:request-not-supported\", error=\"unsupported_request\"",
"code": 404
}
My question is, am I sending the right request? If not, which parameter might be incorrect? Is this endpoint available for NOT production environment?
Thanks.