401 errors when searching for a patient (INT)

Personal Demographics Service (PDS)
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1

Hi, I’m receiving 401 errors from the patient lookup in PDS. Our application ID is d3317c61-3c51-4b7e-8770-f42a9d9c6885, and this is set up with:

  • personal-demographics-int-privileged-application-restricted,
  • personal-demographics-int-application-restricted, and
  • e-referrals-service-api-int-application-restricted permissions.

Any help appreciated.

{
    "status_code": 401,
    "url": "https://int.api.service.nhs.uk/personal-demographics/FHIR/R4/Patient/9728331355",
    "error_body": {
      "issue": [
        {
          "code": "forbidden",
          "details": {
            "coding": [
              {
                "code": "ACCESS_DENIED",
                "display": "Access Denied - Unauthorised",
                "system": "https://fhir.nhs.uk/R4/CodeSystem/Spine-ErrorOrWarningCode",
                "version": "1"
              }
            ]
          },
          "severity": "error"
        }
      ],
      "resourceType": "OperationOutcome"
    },
    "event": "http_error_response",
    "level": "error",
    "timestamp": "2026-01-22T14:47:56.848335Z"
  }
2

Please remove personal-demographics-int-privileged-application-restricted and try again.
This is an access mode that is not for general use.