diff --git a/bruno/APIM/Get_Auth_Token.bru b/bruno/APIM/Get_Auth_Token.bru
index 74257faf..bc80a744 100644
--- a/bruno/APIM/Get_Auth_Token.bru
+++ b/bruno/APIM/Get_Auth_Token.bru
@@ -20,19 +20,17 @@ script:pre-request {
     const jwt = require("jsonwebtoken");
     const fs = require("node:fs");
     const crypto = require("node:crypto");
-
     const secret = bru.getEnvVar("JWT_SECRET");
     const privateKeyPath = bru.getEnvVar("PRIVATE_KEY_PATH");
-
     if (!secret) {
       throw new Error("JWT_SECRET environment variable is missing.");
     }
+
     if (!privateKeyPath) {
       throw new Error("PRIVATE_KEY_PATH environment variable is missing.");
     }
 
     const privateKey = fs.readFileSync(privateKeyPath);
-
     const payload = {
       sub: secret,
       iss: secret,
@@ -45,19 +43,14 @@ script:pre-request {
       algorithm: 'RS512',
       header: { kid: kid }
     };
-
     const token = jwt.sign(payload, privateKey, options);
-
     let new_body = req.getBody();
     new_body.push({ name: "client_assertion", value: token });
-
     req.setBody(new_body);
   }
-
   const environment = bru.getGlobalEnvVar("APIM_ENV")
   generateAuthToken(bru, req, `https://${environment}.api.service.nhs.uk/oauth2/token`, bru.getEnvVar("KID"));
 }
-
 script:post-response {
   bru.setGlobalEnvVar("auth_token", res.getBody().access_token)
 }
diff --git a/bruno/APIM/Post_Document_Bundle_via_APIM_INT.bru b/bruno/APIM/Post_Document_Bundle_via_APIM_INT.bru
index 2d24c9be..61a5c528 100644
--- a/bruno/APIM/Post_Document_Bundle_via_APIM_INT.bru
+++ b/bruno/APIM/Post_Document_Bundle_via_APIM_INT.bru
@@ -1,7 +1,7 @@
 meta {
   name: Post Document Bundle via APIM - INT
   type: http
-  seq: 4
+  seq: 3
 }
 
 post {
diff --git a/bruno/APIM/Test_MNS_Pathology_Api_Unable_To_Authenticate.bru b/bruno/APIM/Test_MNS_Pathology_Api_Unable_To_Authenticate.bru
new file mode 100644
index 00000000..7d68562b
--- /dev/null
+++ b/bruno/APIM/Test_MNS_Pathology_Api_Unable_To_Authenticate.bru
@@ -0,0 +1,84 @@
+meta {
+  name: Test_MNS_Pathology_Api_Unable_To_Authenticate
+  type: http
+  seq: 5
+}
+
+post {
+  url: https://{{APIM_ENV}}.api.service.nhs.uk/pathology-laboratory-reporting-pr-{{PR_NUMBER}}/FHIR/R4/Bundle
+  body: json
+  auth: inherit
+}
+
+headers {
+  Content-Type: application/fhir+json
+}
+
+body:json {
+  {
+    "resourceType": "Bundle",
+    "type": "document",
+    "entry": [
+      {
+        "fullUrl": "composition",
+        "resource": {
+          "resourceType": "Composition",
+          "extension": [
+            {
+              "url": "http://hl7.eu/fhir/StructureDefinition/composition-basedOn-order-or-requisition",
+              "valueReference": {
+                "reference": "servicerequest"
+              }
+            }
+          ],
+          "subject": {
+            "identifier": {
+              "system": "https://fhir.nhs.uk/Id/nhs-number",
+              "value": "MNS_AUTHENTICATION_ERROR"
+            }
+          }
+        }
+      },
+      {
+        "fullUrl": "servicerequest",
+        "resource": {
+          "resourceType": "ServiceRequest",
+          "requester": {
+            "reference": "practitionerrole"
+          }
+        }
+      },
+      {
+        "fullUrl": "practitionerrole",
+        "resource": {
+          "resourceType": "PractitionerRole",
+          "organization": {
+            "reference": "organization"
+          }
+        }
+      },
+      {
+        "fullUrl": "organization",
+        "resource": {
+          "resourceType": "Organization",
+          "identifier": [
+            {
+              "system": "https://fhir.nhs.uk/Id/ods-organization-code",
+              "value": "testOrg"
+            }
+          ]
+        }
+      }
+    ]
+  }
+}
+
+assert {
+  res.status: eq 500
+  res.body.issue[0].diagnostics: eq "Failed to publish an event"
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
diff --git a/bruno/APIM/Test_MNS_Pathology_Api_Unable_To_Authorize_Event.bru b/bruno/APIM/Test_MNS_Pathology_Api_Unable_To_Authorize_Event.bru
new file mode 100644
index 00000000..35730ee9
--- /dev/null
+++ b/bruno/APIM/Test_MNS_Pathology_Api_Unable_To_Authorize_Event.bru
@@ -0,0 +1,84 @@
+meta {
+  name: Test_MNS_Pathology_Api_Unable_To_Authorize_Event
+  type: http
+  seq: 5
+}
+
+post {
+  url: https://{{APIM_ENV}}.api.service.nhs.uk/pathology-laboratory-reporting-pr-{{PR_NUMBER}}/FHIR/R4/Bundle
+  body: json
+  auth: inherit
+}
+
+headers {
+  Content-Type: application/fhir+json
+}
+
+body:json {
+  {
+    "resourceType": "Bundle",
+    "type": "document",
+    "entry": [
+      {
+        "fullUrl": "composition",
+        "resource": {
+          "resourceType": "Composition",
+          "extension": [
+            {
+              "url": "http://hl7.eu/fhir/StructureDefinition/composition-basedOn-order-or-requisition",
+              "valueReference": {
+                "reference": "servicerequest"
+              }
+            }
+          ],
+          "subject": {
+            "identifier": {
+              "system": "https://fhir.nhs.uk/Id/nhs-number",
+              "value": "MNS_AUTHORIZATION_ERROR"
+            }
+          }
+        }
+      },
+      {
+        "fullUrl": "servicerequest",
+        "resource": {
+          "resourceType": "ServiceRequest",
+          "requester": {
+            "reference": "practitionerrole"
+          }
+        }
+      },
+      {
+        "fullUrl": "practitionerrole",
+        "resource": {
+          "resourceType": "PractitionerRole",
+          "organization": {
+            "reference": "organization"
+          }
+        }
+      },
+      {
+        "fullUrl": "organization",
+        "resource": {
+          "resourceType": "Organization",
+          "identifier": [
+            {
+              "system": "https://fhir.nhs.uk/Id/ods-organization-code",
+              "value": "testOrg"
+            }
+          ]
+        }
+      }
+    ]
+  }
+}
+
+assert {
+  res.status: eq 500
+  res.body.issue[0].diagnostics: eq "Failed to publish an event"
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
diff --git a/bruno/APIM/Test_MNS_Service_Experience_Bad_Gateway_Error.bru b/bruno/APIM/Test_MNS_Service_Experience_Bad_Gateway_Error.bru
new file mode 100644
index 00000000..99ed5495
--- /dev/null
+++ b/bruno/APIM/Test_MNS_Service_Experience_Bad_Gateway_Error.bru
@@ -0,0 +1,84 @@
+meta {
+  name: Test_MNS_Service_Experience_Bad_Gateway_Error
+  type: http
+  seq: 7
+}
+
+post {
+  url: https://{{APIM_ENV}}.api.service.nhs.uk/pathology-laboratory-reporting-pr-{{PR_NUMBER}}/FHIR/R4/Bundle
+  body: json
+  auth: inherit
+}
+
+headers {
+  Content-Type: application/fhir+json
+}
+
+body:json {
+  {
+    "resourceType": "Bundle",
+    "type": "document",
+    "entry": [
+      {
+        "fullUrl": "composition",
+        "resource": {
+          "resourceType": "Composition",
+          "extension": [
+            {
+              "url": "http://hl7.eu/fhir/StructureDefinition/composition-basedOn-order-or-requisition",
+              "valueReference": {
+                "reference": "servicerequest"
+              }
+            }
+          ],
+          "subject": {
+            "identifier": {
+              "system": "https://fhir.nhs.uk/Id/nhs-number",
+              "value": "MNS_BAD_GATEWAY_ERROR"
+            }
+          }
+        }
+      },
+      {
+        "fullUrl": "servicerequest",
+        "resource": {
+          "resourceType": "ServiceRequest",
+          "requester": {
+            "reference": "practitionerrole"
+          }
+        }
+      },
+      {
+        "fullUrl": "practitionerrole",
+        "resource": {
+          "resourceType": "PractitionerRole",
+          "organization": {
+            "reference": "organization"
+          }
+        }
+      },
+      {
+        "fullUrl": "organization",
+        "resource": {
+          "resourceType": "Organization",
+          "identifier": [
+            {
+              "system": "https://fhir.nhs.uk/Id/ods-organization-code",
+              "value": "testOrg"
+            }
+          ]
+        }
+      }
+    ]
+  }
+}
+
+assert {
+  res.status: eq 500
+  res.body.issue[0].diagnostics: eq "Failed to publish an event"
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
diff --git a/bruno/APIM/Test_MNS_Service_Experience_Gateway_Timeout_Error.bru b/bruno/APIM/Test_MNS_Service_Experience_Gateway_Timeout_Error.bru
new file mode 100644
index 00000000..b278d6c3
--- /dev/null
+++ b/bruno/APIM/Test_MNS_Service_Experience_Gateway_Timeout_Error.bru
@@ -0,0 +1,84 @@
+meta {
+  name: Test_MNS_Service_Experience_Gateway_Timeout_Error
+  type: http
+  seq: 8
+}
+
+post {
+  url: https://{{APIM_ENV}}.api.service.nhs.uk/pathology-laboratory-reporting-pr-{{PR_NUMBER}}/FHIR/R4/Bundle
+  body: json
+  auth: inherit
+}
+
+headers {
+  Content-Type: application/fhir+json
+}
+
+body:json {
+  {
+    "resourceType": "Bundle",
+    "type": "document",
+    "entry": [
+      {
+        "fullUrl": "composition",
+        "resource": {
+          "resourceType": "Composition",
+          "extension": [
+            {
+              "url": "http://hl7.eu/fhir/StructureDefinition/composition-basedOn-order-or-requisition",
+              "valueReference": {
+                "reference": "servicerequest"
+              }
+            }
+          ],
+          "subject": {
+            "identifier": {
+              "system": "https://fhir.nhs.uk/Id/nhs-number",
+              "value": "MNS_GATEWAY_TIMEOUT_ERROR"
+            }
+          }
+        }
+      },
+      {
+        "fullUrl": "servicerequest",
+        "resource": {
+          "resourceType": "ServiceRequest",
+          "requester": {
+            "reference": "practitionerrole"
+          }
+        }
+      },
+      {
+        "fullUrl": "practitionerrole",
+        "resource": {
+          "resourceType": "PractitionerRole",
+          "organization": {
+            "reference": "organization"
+          }
+        }
+      },
+      {
+        "fullUrl": "organization",
+        "resource": {
+          "resourceType": "Organization",
+          "identifier": [
+            {
+              "system": "https://fhir.nhs.uk/Id/ods-organization-code",
+              "value": "testOrg"
+            }
+          ]
+        }
+      }
+    ]
+  }
+}
+
+assert {
+  res.status: eq 500
+  res.body.issue[0].diagnostics: eq "Failed to publish an event"
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
diff --git a/bruno/APIM/Test_MNS_Service_Experience_Validation_Error.bru b/bruno/APIM/Test_MNS_Service_Experience_Validation_Error.bru
new file mode 100644
index 00000000..9df7519a
--- /dev/null
+++ b/bruno/APIM/Test_MNS_Service_Experience_Validation_Error.bru
@@ -0,0 +1,84 @@
+meta {
+  name: Test_MNS_Service_Experience_Validation_Error
+  type: http
+  seq: 9
+}
+
+post {
+  url: https://{{APIM_ENV}}.api.service.nhs.uk/pathology-laboratory-reporting-pr-{{PR_NUMBER}}/FHIR/R4/Bundle
+  body: json
+  auth: inherit
+}
+
+headers {
+  Content-Type: application/fhir+json
+}
+
+body:json {
+  {
+    "resourceType": "Bundle",
+    "type": "document",
+    "entry": [
+      {
+        "fullUrl": "composition",
+        "resource": {
+          "resourceType": "Composition",
+          "extension": [
+            {
+              "url": "http://hl7.eu/fhir/StructureDefinition/composition-basedOn-order-or-requisition",
+              "valueReference": {
+                "reference": "servicerequest"
+              }
+            }
+          ],
+          "subject": {
+            "identifier": {
+              "system": "https://fhir.nhs.uk/Id/nhs-number",
+              "value": "MNS_VALIDATION_ERROR"
+            }
+          }
+        }
+      },
+      {
+        "fullUrl": "servicerequest",
+        "resource": {
+          "resourceType": "ServiceRequest",
+          "requester": {
+            "reference": "practitionerrole"
+          }
+        }
+      },
+      {
+        "fullUrl": "practitionerrole",
+        "resource": {
+          "resourceType": "PractitionerRole",
+          "organization": {
+            "reference": "organization"
+          }
+        }
+      },
+      {
+        "fullUrl": "organization",
+        "resource": {
+          "resourceType": "Organization",
+          "identifier": [
+            {
+              "system": "https://fhir.nhs.uk/Id/ods-organization-code",
+              "value": "testOrg"
+            }
+          ]
+        }
+      }
+    ]
+  }
+}
+
+assert {
+  res.status: eq 500
+  res.body.issue[0].diagnostics: eq "Failed to publish an event"
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
diff --git a/bruno/APIM/Test_MNS_Service_Returns_Client_Side_Error.bru b/bruno/APIM/Test_MNS_Service_Returns_Client_Side_Error.bru
new file mode 100644
index 00000000..4f8e9a74
--- /dev/null
+++ b/bruno/APIM/Test_MNS_Service_Returns_Client_Side_Error.bru
@@ -0,0 +1,84 @@
+meta {
+  name: Test_MNS_Service_Returns_Client_Side_Error
+  type: http
+  seq: 6
+}
+
+post {
+  url: https://{{APIM_ENV}}.api.service.nhs.uk/pathology-laboratory-reporting-pr-{{PR_NUMBER}}/FHIR/R4/Bundle
+  body: json
+  auth: inherit
+}
+
+headers {
+  Content-Type: application/fhir+json
+}
+
+body:json {
+  {
+    "resourceType": "Bundle",
+    "type": "document",
+    "entry": [
+      {
+        "fullUrl": "composition",
+        "resource": {
+          "resourceType": "Composition",
+          "extension": [
+            {
+              "url": "http://hl7.eu/fhir/StructureDefinition/composition-basedOn-order-or-requisition",
+              "valueReference": {
+                "reference": "servicerequest"
+              }
+            }
+          ],
+          "subject": {
+            "identifier": {
+              "system": "https://fhir.nhs.uk/Id/nhs-number",
+              "value": "MNS_SERVER_ERROR"
+            }
+          }
+        }
+      },
+      {
+        "fullUrl": "servicerequest",
+        "resource": {
+          "resourceType": "ServiceRequest",
+          "requester": {
+            "reference": "practitionerrole"
+          }
+        }
+      },
+      {
+        "fullUrl": "practitionerrole",
+        "resource": {
+          "resourceType": "PractitionerRole",
+          "organization": {
+            "reference": "organization"
+          }
+        }
+      },
+      {
+        "fullUrl": "organization",
+        "resource": {
+          "resourceType": "Organization",
+          "identifier": [
+            {
+              "system": "https://fhir.nhs.uk/Id/ods-organization-code",
+              "value": "testOrg"
+            }
+          ]
+        }
+      }
+    ]
+  }
+}
+
+assert {
+  res.status: eq 500
+  res.body.issue[0].diagnostics: eq "Failed to publish an event"
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
diff --git a/bruno/APIM/Test_PDM_Api_Server_Error.bru b/bruno/APIM/Test_PDM_Api_Server_Error.bru
new file mode 100644
index 00000000..731a50fd
--- /dev/null
+++ b/bruno/APIM/Test_PDM_Api_Server_Error.bru
@@ -0,0 +1,96 @@
+meta {
+  name: Test_PDM_Api_Server_Error
+  type: http
+  seq: 12
+}
+
+post {
+  url: https://{{APIM_ENV}}.api.service.nhs.uk/pathology-laboratory-reporting-pr-{{PR_NUMBER}}/FHIR/R4/Bundle
+  body: json
+  auth: inherit
+}
+
+headers {
+  Content-Type: application/fhir+json
+}
+
+body:json {
+  {
+    "resourceType": "Bundle",
+    "type": "document",
+    "entry": [
+      {
+        "fullUrl": "composition",
+        "resource": {
+          "resourceType": "Composition",
+          "extension": [
+            {
+              "url": "http://hl7.eu/fhir/StructureDefinition/composition-basedOn-order-or-requisition",
+              "valueReference": {
+                "reference": "servicerequest"
+              }
+            }
+          ],
+          "subject": {
+            "identifier": {
+              "system": "https://fhir.nhs.uk/Id/nhs-number",
+              "value": "test-nhs-number"
+            }
+          }
+        }
+      },
+      {
+        "fullUrl": "servicerequest",
+        "resource": {
+          "resourceType": "ServiceRequest",
+          "requester": {
+            "reference": "practitionerrole"
+          }
+        }
+      },
+      {
+        "fullUrl": "practitionerrole",
+        "resource": {
+          "resourceType": "PractitionerRole",
+          "organization": {
+            "reference": "organization"
+          }
+        }
+      },
+      {
+        "fullUrl": "patient",
+        "resource": {
+          "resourceType": "Patient",
+          "identifier": [
+            {
+              "system": "https://fhir.nhs.uk/Id/nhs-number",
+              "value": "PDM_SERVER_ERROR"
+            }
+          ]
+        }
+      },
+      {
+        "fullUrl": "organization",
+        "resource": {
+          "resourceType": "Organization",
+          "identifier": [
+            {
+              "system": "https://fhir.nhs.uk/Id/ods-organization-code",
+              "value": "testOrg"
+            }
+          ]
+        }
+      }
+    ]
+  }
+}
+
+assert {
+  res.status: eq 500
+  res.body.issue[0].diagnostics: contains Failed to send document:
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
diff --git a/bruno/APIM/Test_PDM_Api_Validation_Error.bru b/bruno/APIM/Test_PDM_Api_Validation_Error.bru
new file mode 100644
index 00000000..f6901469
--- /dev/null
+++ b/bruno/APIM/Test_PDM_Api_Validation_Error.bru
@@ -0,0 +1,96 @@
+meta {
+  name: Test_PDM_Api_Validation_Error
+  type: http
+  seq: 10
+}
+
+post {
+  url: https://{{APIM_ENV}}.api.service.nhs.uk/pathology-laboratory-reporting-pr-{{PR_NUMBER}}/FHIR/R4/Bundle
+  body: json
+  auth: inherit
+}
+
+headers {
+  Content-Type: application/fhir+json
+}
+
+body:json {
+  {
+    "resourceType": "Bundle",
+    "type": "document",
+    "entry": [
+      {
+        "fullUrl": "composition",
+        "resource": {
+          "resourceType": "Composition",
+          "extension": [
+            {
+              "url": "http://hl7.eu/fhir/StructureDefinition/composition-basedOn-order-or-requisition",
+              "valueReference": {
+                "reference": "servicerequest"
+              }
+            }
+          ],
+          "subject": {
+            "identifier": {
+              "system": "https://fhir.nhs.uk/Id/nhs-number",
+              "value": "test-nhs-number"
+            }
+          }
+        }
+      },
+      {
+        "fullUrl": "servicerequest",
+        "resource": {
+          "resourceType": "ServiceRequest",
+          "requester": {
+            "reference": "practitionerrole"
+          }
+        }
+      },
+      {
+        "fullUrl": "practitionerrole",
+        "resource": {
+          "resourceType": "PractitionerRole",
+          "organization": {
+            "reference": "organization"
+          }
+        }
+      },
+      {
+        "fullUrl": "patient",
+        "resource": {
+          "resourceType": "Patient",
+          "identifier": [
+            {
+              "system": "https://fhir.nhs.uk/Id/nhs-number",
+              "value": "PDM_VALIDATION_ERROR"
+            }
+          ]
+        }
+      },
+      {
+        "fullUrl": "organization",
+        "resource": {
+          "resourceType": "Organization",
+          "identifier": [
+            {
+              "system": "https://fhir.nhs.uk/Id/ods-organization-code",
+              "value": "testOrg"
+            }
+          ]
+        }
+      }
+    ]
+  }
+}
+
+assert {
+  res.status: eq 500
+  res.body.issue[0].diagnostics: contains Failed to send document:
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
diff --git a/bruno/APIM/Test_PDM_Bundle_Succesful_Response.bru b/bruno/APIM/Test_PDM_Bundle_Succesful_Response.bru
new file mode 100644
index 00000000..502810ac
--- /dev/null
+++ b/bruno/APIM/Test_PDM_Bundle_Succesful_Response.bru
@@ -0,0 +1,95 @@
+meta {
+  name: Test_PDM_Bundle_Succesful_Response
+  type: http
+  seq: 12
+}
+
+post {
+  url: https://{{APIM_ENV}}.api.service.nhs.uk/pathology-laboratory-reporting-pr-{{PR_NUMBER}}/FHIR/R4/Bundle
+  body: json
+  auth: inherit
+}
+
+headers {
+  Content-Type: application/fhir+json
+}
+
+body:json {
+  {
+    "resourceType": "Bundle",
+    "type": "document",
+    "entry": [
+      {
+        "fullUrl": "composition",
+        "resource": {
+          "resourceType": "Composition",
+          "extension": [
+            {
+              "url": "http://hl7.eu/fhir/StructureDefinition/composition-basedOn-order-or-requisition",
+              "valueReference": {
+                "reference": "servicerequest"
+              }
+            }
+          ],
+          "subject": {
+            "identifier": {
+              "system": "https://fhir.nhs.uk/Id/nhs-number",
+              "value": "test-nhs-number"
+            }
+          }
+        }
+      },
+      {
+        "fullUrl": "servicerequest",
+        "resource": {
+          "resourceType": "ServiceRequest",
+          "requester": {
+            "reference": "practitionerrole"
+          }
+        }
+      },
+      {
+        "fullUrl": "practitionerrole",
+        "resource": {
+          "resourceType": "PractitionerRole",
+          "organization": {
+            "reference": "organization"
+          }
+        }
+      },
+      {
+        "fullUrl": "patient",
+        "resource": {
+          "resourceType": "Patient",
+          "identifier": [
+            {
+              "system": "https://fhir.nhs.uk/Id/nhs-number",
+              "value": "9727710638"
+            }
+          ]
+        }
+      },
+      {
+        "fullUrl": "organization",
+        "resource": {
+          "resourceType": "Organization",
+          "identifier": [
+            {
+              "system": "https://fhir.nhs.uk/Id/ods-organization-code",
+              "value": "testOrg"
+            }
+          ]
+        }
+      }
+    ]
+  }
+}
+
+assert {
+  res.status: eq 200
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}
diff --git a/bruno/PDM/Bundle/Post_a_Transaction_Bundle.bru b/bruno/PDM/Bundle/Post_a_Transaction_Bundle.bru
index 1f289b16..899b5eeb 100644
--- a/bruno/PDM/Bundle/Post_a_Transaction_Bundle.bru
+++ b/bruno/PDM/Bundle/Post_a_Transaction_Bundle.bru
@@ -1,7 +1,7 @@
 meta {
   name: Post a Transaction Bundle
   type: http
-  seq: 5
+  seq: 2
 }
 
 post {
diff --git a/bruno/PDM/environments/PDM.bru b/bruno/PDM/environments/PDM.bru
new file mode 100644
index 00000000..7e5d0a67
--- /dev/null
+++ b/bruno/PDM/environments/PDM.bru
@@ -0,0 +1,6 @@
+vars:secret [
+  PRIVATE_KEY_PATH,
+  JWT_SECRET,
+  PR_NUMBER,
+  KID
+]