diff --git a/.c8rc b/.c8rc
new file mode 100644
index 0000000..83464a2
--- /dev/null
+++ b/.c8rc
@@ -0,0 +1,13 @@
+{
+  "reporter": [
+    "text"
+  ],
+  "exclude": [
+    "test",
+    "test-data"
+  ],
+  "statements": "50",
+  "branches": "90",
+  "functions": "33",
+  "lines": "50"
+}
diff --git a/.nycrc b/.nycrc
deleted file mode 100644
index 276ea9f..0000000
--- a/.nycrc
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-  "reporter": [
-    "text"
-  ],
-  "exclude": [
-    "lib/utils",
-    "test/**"
-  ],
-  "statements": "58",
-  "branches": "41",
-  "functions": "33",
-  "lines": "60"
-}
diff --git a/lib/helpers/case-body-helper.js b/lib/helpers/case-body-helper.js
index b51f70f..b98832e 100644
--- a/lib/helpers/case-body-helper.js
+++ b/lib/helpers/case-body-helper.js
@@ -1,19 +1,80 @@
 "use strict";
 
-const ownerMapper = { dn: "DNBO" };
+const { caseSchema } = require("../validation-helpers/schemas");
 
-const sourceQueueMapper = { dn: "DNBO" };
+const ownerMapper = {
+  "bbm-res": "BBM",
+  "bbm-dam": "BBM",
+  "bbm-aktuellhallbarhet": "BBM",
+  "bbm-fastighetsnytt": "BBM",
+  "bbm-byggindustrin": "BBM",
+  "bbm-dagensmedicin": "BBM",
+  "bbm-dagligvarunytt": "BBM",
+  "bbm-dagenssamhalle": "BBM",
+  "bbm-market": "BBM",
+  "bbm-news": "BBM",
+  bnlo: "MittMedia",
+  di: "Di_Backoffice_Omni",
+  dn: "DNBO",
+  expressen: "Expressen_Backoffice",
+  paf: "Di_Backoffice_Omni",
+};
 
-function createBackOfficeCaseBody(subject, description, namespace) {
-  return {
-    category: "Övriga ärenden",
+const sourceQueueMapper = {
+  "bbm-res": "BBM_BackOffice",
+  "bbm-dam": "BBM_BackOffice",
+  "bbm-aktuellhallbarhet": "BBM_BackOffice",
+  "bbm-fastighetsnytt": "BBM_BackOffice",
+  "bbm-byggindustrin": "BBM_BackOffice",
+  "bbm-dagensmedicin": "BBM_BackOffice",
+  "bbm-dagligvarunytt": "BBM_BackOffice",
+  "bbm-dagenssamhalle": "BBM_BackOffice",
+  "bbm-market": "BBM_BackOffice",
+  "bbm-news": "BBM_BackOffice",
+  bnlo: "MittMedia_Secondline_Support",
+  di: "Di_Second_Line",
+  dn: "DNBO",
+  expressen: "Expressen_Backoffice",
+  paf: "PAF_Kundservice",
+};
+
+function createBackOfficeCaseBody(
+  subject,
+  description,
+  namespace,
+  {
+    businessType = "BN_B2C",
+    category = "Övriga ärenden",
+    contact,
+    deploymentName,
+    externalReference,
+    origin = "Greenfield",
+    owner,
+    priority = "Medium",
+    sourceQueue,
+  } = {}
+) {
+  const caseBody = {
+    businessType,
+    category,
     description,
     namespace,
-    origin: "Greenfield",
-    owner: ownerMapper[namespace],
-    sourceQueue: sourceQueueMapper[namespace],
+    origin,
+    owner: owner || ownerMapper[namespace],
+    priority,
+    sourceQueue: sourceQueue || sourceQueueMapper[namespace],
     subject,
   };
+
+  if (contact) caseBody.contact = contact;
+  if (deploymentName) caseBody.deploymentName = deploymentName;
+  if (externalReference) caseBody.externalReference = externalReference;
+
+  const result = caseSchema.validate(caseBody);
+
+  if (result.error) throw result.error;
+
+  return caseBody;
 }
 
 module.exports = createBackOfficeCaseBody;
diff --git a/lib/namespaces.js b/lib/namespaces.js
index ef0091c..d8b23f7 100644
--- a/lib/namespaces.js
+++ b/lib/namespaces.js
@@ -3,6 +3,8 @@
 const postalDeliveryOnlyNamespaces = [ "paf" ];
 
 const commonNamespaces = [ "dn", "expressen", "bnlo" ];
+const platformNamespaces = [ ...commonNamespaces, "paf" ];
+const salesforceCaseNamespaces = [ ...platformNamespaces, "di" ];
 
 function postalDeliveryOnly(namespace) {
   return postalDeliveryOnlyNamespaces.includes(namespace);
@@ -20,4 +22,6 @@ module.exports = {
   getCommonNamespaces,
   isCommonNamespace,
   postalDeliveryOnly,
+  platformNamespaces,
+  salesforceCaseNamespaces,
 };
diff --git a/lib/validation-helpers/schemas.js b/lib/validation-helpers/schemas.js
index 7eb10a6..f950cf5 100644
--- a/lib/validation-helpers/schemas.js
+++ b/lib/validation-helpers/schemas.js
@@ -4,6 +4,9 @@ const Basejoi = require("joi");
 const joi = Basejoi.extend(require("joi-postalcode"));
 const validCountries = require("../validation-helpers/country-codes");
 const { dateRegex } = require("./formatting-helpers");
+const { salesforceCaseNamespaces } = require("../namespaces");
+
+const requiredString = joi.string().min(1).required();
 
 const customZipCodeValidation = function (value) {
   // Return empty object if address is empty.
@@ -75,8 +78,32 @@ const distributionFeeSchema = joi.object().keys({
   monthlyDelay: joi.number().precision(0).allow(0).tag("white_list"),
 });
 
+// ---------------------- Salesforce schemas ----------------------
+
+const caseSchema = joi.object().keys({
+  namespace: requiredString.valid(...salesforceCaseNamespaces),
+  businessType: joi.string().valid("BN_B2C", "BN_B2B"),
+  category: joi.string(),
+  contact: joi.object().keys({
+    firstName: joi.string(),
+    lastName: joi.string(),
+    email: requiredString,
+    phone: joi.string().regex(/^[+\d][0-9]{7,14}$/),
+    customerNumber: joi.string(),
+  }).optional(),
+  deploymentName: joi.string(),
+  description: requiredString,
+  externalReference: joi.string().optional(),
+  origin: requiredString,
+  owner: requiredString,
+  priority: joi.string().optional().valid("High", "Medium", "Low"),
+  sourceQueue: requiredString,
+  subject: requiredString,
+});
+
 module.exports = {
   addressSchema,
+  caseSchema,
   distributionFeeSchemaNand: distributionFeeSchema.nand("startDate", "monthlyDelay"),
   distributionFeeSchemaXor: distributionFeeSchema.xor("startDate", "monthlyDelay"),
 };
diff --git a/lib/validation-helpers/strip-joi-schema-tags.js b/lib/validation-helpers/strip-joi-schema-tags.js
index 96a8485..066c25a 100644
--- a/lib/validation-helpers/strip-joi-schema-tags.js
+++ b/lib/validation-helpers/strip-joi-schema-tags.js
@@ -25,7 +25,7 @@ function flattenKeys(o) {
   const output = {};
   while (stack.length) {
     const { keys: current, previousKey } = stack.shift();
-    const keys = current instanceof Object ? Object.keys(current) : [];
+    const keys = current instanceof Object ? Object.keys(current) : []; // FIXME: not needed, current will always be an Object because of joi
 
     for (const key of keys) {
       const value = current[key];
@@ -48,8 +48,7 @@ function getFlaggedKeys(o) {
   const output = {};
   while (stack.length) {
     const { keys: current, previousKey } = stack.shift();
-
-    const keys = current instanceof Object ? Object.keys(current) : [];
+    const keys = current instanceof Object ? Object.keys(current) : []; // FIXME: not needed, current will always be an Object because of joi
 
     for (const key of keys) {
       const value = current[key];
diff --git a/package-lock.json b/package-lock.json
index 12cb135..2a575cc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "lu-common",
-  "version": "3.7.4",
+  "version": "3.8.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "lu-common",
-      "version": "3.7.4",
+      "version": "3.8.0",
       "license": "UNLICENSED",
       "dependencies": {
         "@google-cloud/storage": "^5.18.3",
@@ -67,9 +67,9 @@
       }
     },
     "node_modules/@babel/generator": {
-      "version": "7.22.7",
-      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.22.7.tgz",
-      "integrity": "sha512-p+jPjMG+SI8yvIaxGgeW24u7q9+5+TGpZh8/CuB7RhBKd7RCy8FayNEFNNKrNK/eUcY/4ExQqLmyrvBXKsIcwQ==",
+      "version": "7.22.9",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.22.9.tgz",
+      "integrity": "sha512-KtLMbmicyuK2Ak/FTCJVbDnkN1SlT8/kceFTiuDiiRUUSMnHMidxSCdG4ndkTOHHpoomWe/4xkvHkEOncwjYIw==",
       "dev": true,
       "dependencies": {
         "@babel/types": "^7.22.5",
@@ -293,9 +293,9 @@
       }
     },
     "node_modules/@eslint/eslintrc": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-2.1.0.tgz",
-      "integrity": "sha512-Lj7DECXqIVCqnqjjHMPna4vn6GJcMgul/wuS0je9OZ9gsL0zzDpKPVtcG1HaDVc+9y+qgXneTeUMbCqXJNpH1A==",
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-2.1.1.tgz",
+      "integrity": "sha512-9t7ZA7NGGK8ckelF0PQCfcxIUzs1Md5rrO6U/c+FIQNanea5UZC0wqKXH4vHBccmu4ZJgZ2idtPeW7+Q2npOEA==",
       "dev": true,
       "dependencies": {
         "ajv": "^6.12.4",
@@ -348,22 +348,10 @@
         "js-yaml": "bin/js-yaml.js"
       }
     },
-    "node_modules/@eslint/eslintrc/node_modules/type-fest": {
-      "version": "0.20.2",
-      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.20.2.tgz",
-      "integrity": "sha512-Ne+eE4r0/iWnpAxD852z3A+N0Bt5RN//NjJwRd2VFHEmrywxf5vsZlh4R6lixl6B+wz/8d+maTSAkN1FIkI3LQ==",
-      "dev": true,
-      "engines": {
-        "node": ">=10"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
     "node_modules/@eslint/js": {
-      "version": "8.44.0",
-      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-8.44.0.tgz",
-      "integrity": "sha512-Ag+9YM4ocKQx9AarydN0KY2j0ErMHNIocPDrVo8zAE44xLTjEtz81OdR68/cydGtk6m6jDb5Za3r2useMzYmSw==",
+      "version": "8.46.0",
+      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-8.46.0.tgz",
+      "integrity": "sha512-a8TLtmPi8xzPkCbp/OGFUo5yhRkHM2Ko9kOWP4znJr0WAhWyThaw3PnwX4vOTWOAMsV2uRt32PPDcEz63esSaA==",
       "dev": true,
       "engines": {
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
@@ -1004,6 +992,25 @@
         "node": ">=8"
       }
     },
+    "node_modules/array.prototype.findlastindex": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/array.prototype.findlastindex/-/array.prototype.findlastindex-1.2.2.tgz",
+      "integrity": "sha512-tb5thFFlUcp7NdNF6/MpDk/1r/4awWG1FIz3YqDf+/zJSTezBb+/5WViH41obXULHVpDzoiCLpJ/ZO9YbJMsdw==",
+      "dev": true,
+      "dependencies": {
+        "call-bind": "^1.0.2",
+        "define-properties": "^1.1.4",
+        "es-abstract": "^1.20.4",
+        "es-shim-unscopables": "^1.0.0",
+        "get-intrinsic": "^1.1.3"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
     "node_modules/array.prototype.flat": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/array.prototype.flat/-/array.prototype.flat-1.3.1.tgz",
@@ -1128,9 +1135,9 @@
       }
     },
     "node_modules/aws-sdk": {
-      "version": "2.1414.0",
-      "resolved": "https://registry.npmjs.org/aws-sdk/-/aws-sdk-2.1414.0.tgz",
-      "integrity": "sha512-WhqTWiTZRUxWITvUG5VMPYGdCLNAm4zOTDIiotbErR9x+uDExk2CAGbXE8HH11+tD8PhZVXyukymSiG+7rJMMg==",
+      "version": "2.1430.0",
+      "resolved": "https://registry.npmjs.org/aws-sdk/-/aws-sdk-2.1430.0.tgz",
+      "integrity": "sha512-827BjW9Q9NwUucZBHHU64dh96ihE857LC0ZOEub0C5wjxujoEqET0i4qJR7k+/wn8tFMNtWO0rIGCSGSmgrm5A==",
       "dependencies": {
         "buffer": "4.9.2",
         "events": "1.1.1",
@@ -1328,47 +1335,6 @@
         "node": ">=12"
       }
     },
-    "node_modules/c8/node_modules/cliui": {
-      "version": "8.0.1",
-      "resolved": "https://registry.npmjs.org/cliui/-/cliui-8.0.1.tgz",
-      "integrity": "sha512-BSeNnyus75C4//NQ9gQt1/csTXyo/8Sb+afLAkzAptFuMsod9HFokGNudZpi/oQV73hnVK+sR+5PVRMd+Dr7YQ==",
-      "dev": true,
-      "dependencies": {
-        "string-width": "^4.2.0",
-        "strip-ansi": "^6.0.1",
-        "wrap-ansi": "^7.0.0"
-      },
-      "engines": {
-        "node": ">=12"
-      }
-    },
-    "node_modules/c8/node_modules/yargs": {
-      "version": "17.7.2",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.2.tgz",
-      "integrity": "sha512-7dSzzRQ++CKnNI/krKnYRV7JKKPUXMEh61soaHKg9mrWEhzFWhFnxPxGl+69cD1Ou63C13NUPCnmIcrvqCuM6w==",
-      "dev": true,
-      "dependencies": {
-        "cliui": "^8.0.1",
-        "escalade": "^3.1.1",
-        "get-caller-file": "^2.0.5",
-        "require-directory": "^2.1.1",
-        "string-width": "^4.2.3",
-        "y18n": "^5.0.5",
-        "yargs-parser": "^21.1.1"
-      },
-      "engines": {
-        "node": ">=12"
-      }
-    },
-    "node_modules/c8/node_modules/yargs-parser": {
-      "version": "21.1.1",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-21.1.1.tgz",
-      "integrity": "sha512-tVpsJW7DdjecAiFpbIB1e3qxIQsE6NoPc5/eTdrbbIC4h0LVsWhnoa3g+m2HclBIujHzsxZ4VJVA+GUuc2/LBw==",
-      "dev": true,
-      "engines": {
-        "node": ">=12"
-      }
-    },
     "node_modules/call-bind": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.2.tgz",
@@ -1495,14 +1461,17 @@
       }
     },
     "node_modules/cliui": {
-      "version": "7.0.4",
-      "resolved": "https://registry.npmjs.org/cliui/-/cliui-7.0.4.tgz",
-      "integrity": "sha512-OcRE68cOsVMXp1Yvonl/fzkQOyjLSu/8bhPDfQt0e0/Eb283TKP20Fs2MqoPsr9SwA595rRCA+QMzYc9nBP+JQ==",
+      "version": "8.0.1",
+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-8.0.1.tgz",
+      "integrity": "sha512-BSeNnyus75C4//NQ9gQt1/csTXyo/8Sb+afLAkzAptFuMsod9HFokGNudZpi/oQV73hnVK+sR+5PVRMd+Dr7YQ==",
       "dev": true,
       "dependencies": {
         "string-width": "^4.2.0",
-        "strip-ansi": "^6.0.0",
+        "strip-ansi": "^6.0.1",
         "wrap-ansi": "^7.0.0"
+      },
+      "engines": {
+        "node": ">=12"
       }
     },
     "node_modules/clone": {
@@ -1695,6 +1664,18 @@
         }
       }
     },
+    "node_modules/decamelize": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-4.0.0.tgz",
+      "integrity": "sha512-9iE1PgSik9HeIIw2JO94IidnE3eBoQrFJ3w7sFuzSX4DpmZ3v5sZpUiV5Swcf6mQEF+Y0ru8Neo+p+nyh2J+hQ==",
+      "dev": true,
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/deep-eql": {
       "version": "4.1.3",
       "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-4.1.3.tgz",
@@ -1806,6 +1787,44 @@
         "node": ">=10"
       }
     },
+    "node_modules/depcheck/node_modules/cliui": {
+      "version": "7.0.4",
+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-7.0.4.tgz",
+      "integrity": "sha512-OcRE68cOsVMXp1Yvonl/fzkQOyjLSu/8bhPDfQt0e0/Eb283TKP20Fs2MqoPsr9SwA595rRCA+QMzYc9nBP+JQ==",
+      "dev": true,
+      "dependencies": {
+        "string-width": "^4.2.0",
+        "strip-ansi": "^6.0.0",
+        "wrap-ansi": "^7.0.0"
+      }
+    },
+    "node_modules/depcheck/node_modules/yargs": {
+      "version": "16.2.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.2.0.tgz",
+      "integrity": "sha512-D1mvvtDG0L5ft/jGWkLpG1+m0eQxOfaBvTNELraWj22wSVUMWxZUvYgJYcKh6jGGIkJFhH4IZPQhR4TKpc8mBw==",
+      "dev": true,
+      "dependencies": {
+        "cliui": "^7.0.2",
+        "escalade": "^3.1.1",
+        "get-caller-file": "^2.0.5",
+        "require-directory": "^2.1.1",
+        "string-width": "^4.2.0",
+        "y18n": "^5.0.5",
+        "yargs-parser": "^20.2.2"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/depcheck/node_modules/yargs-parser": {
+      "version": "20.2.9",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.9.tgz",
+      "integrity": "sha512-y11nGElTIV+CT3Zv9t7VKl+Q3hTQoT9a1Qzezhhl6Rp21gJ/IVTW7Z3y9EWXhuUBC2Shnf+DX0antecpAwSP8w==",
+      "dev": true,
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/deps-regex": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/deps-regex/-/deps-regex-0.1.4.tgz",
@@ -2060,27 +2079,27 @@
       }
     },
     "node_modules/eslint": {
-      "version": "8.45.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-8.45.0.tgz",
-      "integrity": "sha512-pd8KSxiQpdYRfYa9Wufvdoct3ZPQQuVuU5O6scNgMuOMYuxvH0IGaYK0wUFjo4UYYQQCUndlXiMbnxopwvvTiw==",
+      "version": "8.46.0",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-8.46.0.tgz",
+      "integrity": "sha512-cIO74PvbW0qU8e0mIvk5IV3ToWdCq5FYG6gWPHHkx6gNdjlbAYvtfHmlCMXxjcoVaIdwy/IAt3+mDkZkfvb2Dg==",
       "dev": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.2.0",
-        "@eslint-community/regexpp": "^4.4.0",
-        "@eslint/eslintrc": "^2.1.0",
-        "@eslint/js": "8.44.0",
+        "@eslint-community/regexpp": "^4.6.1",
+        "@eslint/eslintrc": "^2.1.1",
+        "@eslint/js": "^8.46.0",
         "@humanwhocodes/config-array": "^0.11.10",
         "@humanwhocodes/module-importer": "^1.0.1",
         "@nodelib/fs.walk": "^1.2.8",
-        "ajv": "^6.10.0",
+        "ajv": "^6.12.4",
         "chalk": "^4.0.0",
         "cross-spawn": "^7.0.2",
         "debug": "^4.3.2",
         "doctrine": "^3.0.0",
         "escape-string-regexp": "^4.0.0",
-        "eslint-scope": "^7.2.0",
-        "eslint-visitor-keys": "^3.4.1",
-        "espree": "^9.6.0",
+        "eslint-scope": "^7.2.2",
+        "eslint-visitor-keys": "^3.4.2",
+        "espree": "^9.6.1",
         "esquery": "^1.4.2",
         "esutils": "^2.0.2",
         "fast-deep-equal": "^3.1.3",
@@ -2133,14 +2152,14 @@
       }
     },
     "node_modules/eslint-import-resolver-node": {
-      "version": "0.3.7",
-      "resolved": "https://registry.npmjs.org/eslint-import-resolver-node/-/eslint-import-resolver-node-0.3.7.tgz",
-      "integrity": "sha512-gozW2blMLJCeFpBwugLTGyvVjNoeo1knonXAcatC6bjPBZitotxdWf7Gimr25N4c0AAOo4eOUfaG82IJPDpqCA==",
+      "version": "0.3.8",
+      "resolved": "https://registry.npmjs.org/eslint-import-resolver-node/-/eslint-import-resolver-node-0.3.8.tgz",
+      "integrity": "sha512-tEe+Pok22qIGaK3KoMP+N96GVDS66B/zreoVVmiavLvRUEmGRtvb4B8wO9jwnb8d2lvHtrkhZ7UD73dWBVnf/Q==",
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     "node_modules/which-typed-array": {
-      "version": "1.1.10",
-      "resolved": "https://registry.npmjs.org/which-typed-array/-/which-typed-array-1.1.10.tgz",
-      "integrity": "sha512-uxoA5vLUfRPdjCuJ1h5LlYdmTLbYfums398v3WLkM+i/Wltl2/XyZpQWKbN++ck5L64SR/grOHqtXCUKmlZPNA==",
+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/which-typed-array/-/which-typed-array-1.1.11.tgz",
+      "integrity": "sha512-qe9UWWpkeG5yzZ0tNYxDmd7vo58HDBc39mZ0xWWpolAGADdFOzkfamWLDxkOWcvHQKVmdTyQdLD4NOfjLWTKew==",
       "dependencies": {
         "available-typed-arrays": "^1.0.5",
         "call-bind": "^1.0.2",
         "for-each": "^0.3.3",
         "gopd": "^1.0.1",
-        "has-tostringtag": "^1.0.0",
-        "is-typed-array": "^1.1.10"
+        "has-tostringtag": "^1.0.0"
       },
       "engines": {
         "node": ">= 0.4"
@@ -6352,30 +6419,30 @@
       }
     },
     "node_modules/yargs": {
-      "version": "16.2.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.2.0.tgz",
-      "integrity": "sha512-D1mvvtDG0L5ft/jGWkLpG1+m0eQxOfaBvTNELraWj22wSVUMWxZUvYgJYcKh6jGGIkJFhH4IZPQhR4TKpc8mBw==",
+      "version": "17.7.2",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.2.tgz",
+      "integrity": "sha512-7dSzzRQ++CKnNI/krKnYRV7JKKPUXMEh61soaHKg9mrWEhzFWhFnxPxGl+69cD1Ou63C13NUPCnmIcrvqCuM6w==",
       "dev": true,
       "dependencies": {
-        "cliui": "^7.0.2",
+        "cliui": "^8.0.1",
         "escalade": "^3.1.1",
         "get-caller-file": "^2.0.5",
         "require-directory": "^2.1.1",
-        "string-width": "^4.2.0",
+        "string-width": "^4.2.3",
         "y18n": "^5.0.5",
-        "yargs-parser": "^20.2.2"
+        "yargs-parser": "^21.1.1"
       },
       "engines": {
-        "node": ">=10"
+        "node": ">=12"
       }
     },
     "node_modules/yargs-parser": {
-      "version": "20.2.4",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-20.2.4.tgz",
-      "integrity": "sha512-WOkpgNhPTlE73h4VFAFsOnomJVaovO8VqLDzy5saChRBFQFBoMYirowyW+Q9HB4HFF4Z7VZTiG3iSzJJA29yRA==",
+      "version": "21.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-21.1.1.tgz",
+      "integrity": "sha512-tVpsJW7DdjecAiFpbIB1e3qxIQsE6NoPc5/eTdrbbIC4h0LVsWhnoa3g+m2HclBIujHzsxZ4VJVA+GUuc2/LBw==",
       "dev": true,
       "engines": {
-        "node": ">=10"
+        "node": ">=12"
       }
     },
     "node_modules/yargs-unparser": {
@@ -6393,18 +6460,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/yargs-unparser/node_modules/decamelize": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-4.0.0.tgz",
-      "integrity": "sha512-9iE1PgSik9HeIIw2JO94IidnE3eBoQrFJ3w7sFuzSX4DpmZ3v5sZpUiV5Swcf6mQEF+Y0ru8Neo+p+nyh2J+hQ==",
-      "dev": true,
-      "engines": {
-        "node": ">=10"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
     "node_modules/yocto-queue": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
diff --git a/package.json b/package.json
index 96f3a53..2d5cd65 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lu-common",
-  "version": "3.7.4",
+  "version": "3.8.0",
   "description": "",
   "main": "index.js",
   "engines": {
diff --git a/test/unit/namespaces-common-test.js b/test/unit/namespaces-common-test.js
index 235fe6b..b96f8af 100644
--- a/test/unit/namespaces-common-test.js
+++ b/test/unit/namespaces-common-test.js
@@ -1,9 +1,11 @@
 "use strict";
 
-const { isCommonNamespace } = require("../../lib/namespaces");
+const { isCommonNamespace, getCommonNamespaces } = require("../../lib/namespaces");
+
+const expectedNamespaces = [ "bnlo", "dn", "expressen" ];
 
 describe("isCommonNamespace", () => {
-  [ "dn", "expressen", "bnlo" ].forEach((namespace) => {
+  expectedNamespaces.forEach((namespace) => {
     it(`should confirm '${namespace}' as part of common namespace`, () => {
       const result = isCommonNamespace(namespace);
       result.should.equal(true);
@@ -14,4 +16,8 @@ describe("isCommonNamespace", () => {
     const result = isCommonNamespace("di");
     result.should.equal(false);
   });
+
+  it("should give us a list of common namespaces", () => {
+    JSON.stringify(getCommonNamespaces().sort()).should.equal(JSON.stringify(expectedNamespaces));
+  });
 });
diff --git a/test/unit/utils/case-body-helper-test.js b/test/unit/utils/case-body-helper-test.js
index a346bc2..87a96d3 100644
--- a/test/unit/utils/case-body-helper-test.js
+++ b/test/unit/utils/case-body-helper-test.js
@@ -2,16 +2,18 @@
 
 const createBackOfficeCaseBody = require("../../../lib/helpers/case-body-helper");
 
-const description = "An order is in an unresovable state for the system",
+const description = "An order is in an unresolveable state for the system",
   namespace = "dn",
   subject = "Bad order";
 
 const backOfficeCaseBody = {
+  businessType: "BN_B2C",
   category: "Övriga ärenden",
   description,
   namespace,
   origin: "Greenfield",
   owner: "DNBO",
+  priority: "Medium",
   sourceQueue: "DNBO",
   subject,
 };
@@ -22,4 +24,48 @@ describe("create back office case body", () => {
       createBackOfficeCaseBody(subject, description, namespace).should.eql(backOfficeCaseBody);
     });
   });
+
+  describe("when calling the create body with optional parameters", () => {
+    it("should create the expected body with sent in parameters", () => {
+      const deploymentName = "some-deployment",
+        externalReference = "some-id";
+      createBackOfficeCaseBody(subject, description, namespace, { deploymentName, externalReference }).should.eql({
+        ...backOfficeCaseBody,
+        deploymentName: "some-deployment",
+        externalReference: "some-id",
+      });
+    });
+  });
+
+  describe("when calling the create body with non-default parameters", () => {
+    it("should create the expected body with sent in parameters", () => {
+      const category = "some-category",
+        priority = "High";
+      createBackOfficeCaseBody(subject, description, namespace, { category, priority }).should.eql({
+        ...backOfficeCaseBody,
+        category,
+        priority,
+      });
+    });
+  });
+
+  describe("when calling the create body with a badly formed contact", () => {
+    it("should fail the joi validation", () => {
+      try {
+        createBackOfficeCaseBody(subject, description, namespace, { contact: { firstName: "Joe", lastName: "Bloggs" } });
+      } catch (error) {
+        error.message.should.eql('"contact.email" is required');
+      }
+    });
+  });
+
+  describe("when calling the create body with an invalid priority", () => {
+    it("should fail the joi validation", () => {
+      try {
+        createBackOfficeCaseBody(subject, description, namespace, { priority: "Highest" });
+      } catch (error) {
+        error.message.should.eql('"priority" must be one of [High, Medium, Low]');
+      }
+    });
+  });
 });
diff --git a/test/unit/validation-helpers/strip-joi-schema-tags-test.js b/test/unit/validation-helpers/strip-joi-schema-tags-test.js
index 077b2eb..613ceae 100644
--- a/test/unit/validation-helpers/strip-joi-schema-tags-test.js
+++ b/test/unit/validation-helpers/strip-joi-schema-tags-test.js
@@ -27,14 +27,14 @@ describe("strip joi fields without tags", () => {
     });
   });
 
-  describe("nested", () => {
+  describe("nested, with more tags after nesting and an unknown flag", () => {
     const schema = joi.object({
       a: joi.string().required().tag("white_list"),
       b: joi.object().keys({
         a: joi.string().tag("white_list"),
         b: joi.string(),
         c: joi.object().keys({ a: joi.number().tag("white_list") }),
-      }),
+      }).unknown(true),
       c: joi.array().tag("white_list"),
       d: joi.array(),
     });