e-RS FHIR API - Response received no relationship

e-Referral Service (e-RS)
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1

Facing an issue in the INT eRS environment for the eRS FHIR API when posting the below request, where we are receiving an error response with the message “NO_RELATIONSHIP”.

Request:

{
  "meta": {
    "profile": [
      "https://fhir.nhs.uk/STU3/StructureDefinition/eRS-FetchWorklist-Parameters-1"
    ]
  },
  "parameter": [
    {
      "name": "listType",
      "valueCodeableConcept": {
        "coding": [
          {
            "code": "REFERRALS_FOR_REVIEW",
            "system": "https://fhir.nhs.uk/STU3/CodeSystem/eRS-ReferralListSelector-1"
          }
        ]
      }
    },
    {
        "name": "service",
        "valueIdentifier": {
            "system": "http://fhir.nhs.net/Id/ers-service",
            "value": "6709786"
        }
    }
  ],
  "resourceType": "Parameters"
}

Response:

{
    "meta": {
        "profile": [
            "https://fhir.nhs.uk/STU3/StructureDefinition/eRS-OperationOutcome-1"
        ]
    },
    "resourceType": "OperationOutcome",
    "issue": [
        {
            "severity": "error",
            "code": "business-rule",
            "details": {
                "coding": [
                    {
                        "code": "NO_RELATIONSHIP",
                        "system": "https://fhir.nhs.uk/STU3/CodeSystem/eRS-APIErrorCode-1",
                        "display": "No relationship"
                    }
                ]
            }
        }
    ]
}

Further information:

  • Application ID: bdb25e32-da54-4dc5-8538-93a1e3ea2af3
  • Correlation ID: 11C46F5F-CDEF-4865-94B2-0EE0EDCC26DA
  • Date & Time of Request: 14:32 13/10/2025
  • Application-restricted API access mode