diff --git a/package-lock.json b/package-lock.json
index 3ec51f5564..5ae24aa492 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -60,7 +60,7 @@
         "typescript": "4.6.3",
         "urijs": "1.19.11",
         "uuid": "8.3.2",
-        "webpack": "5.75.0",
+        "webpack": "5.76.0",
         "webpack-cli": "4.9.1",
         "xregexp": "5.1.1",
         "yaml": "2.0.0-9",
@@ -18793,9 +18793,9 @@
       "license": "BSD-2-Clause"
     },
     "node_modules/webpack": {
-      "version": "5.75.0",
-      "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.75.0.tgz",
-      "integrity": "sha512-piaIaoVJlqMsPtX/+3KTTO6jfvrSYgauFVdt8cr9LTHKmcq/AMd4mhzsiP7ZF/PGRNPGA8336jldh9l2Kt2ogQ==",
+      "version": "5.76.0",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.76.0.tgz",
+      "integrity": "sha512-l5sOdYBDunyf72HW8dF23rFtWq/7Zgvt/9ftMof71E/yUb1YLOBmTgA2K4vQthB3kotMrSj609txVE0dnr2fjA==",
       "dependencies": {
         "@types/eslint-scope": "^3.7.3",
         "@types/estree": "^0.0.51",
diff --git a/packages/concerto-cli/lib/commands.js b/packages/concerto-cli/lib/commands.js
index ae4968688e..20e0a7098d 100644
--- a/packages/concerto-cli/lib/commands.js
+++ b/packages/concerto-cli/lib/commands.js
@@ -18,6 +18,7 @@ const c = require('ansi-colors');
 const fs = require('fs');
 const path = require('path');
 const semver = require('semver');
+const RandExp = require('randexp');
 
 const Logger = require('@accordproject/concerto-util').Logger;
 const FileWriter = require('@accordproject/concerto-util').FileWriter;
@@ -317,10 +318,23 @@ class Commands {
         };
 
         const classDeclaration = modelManager.getType(concept);
+
+        let idFieldName = classDeclaration.getIdentifierFieldName();
+        let idField = classDeclaration.getProperty(idFieldName);
+        let id = 'resource1';
+        if (idField) {
+            if(idField.isTypeScalar && idField.isTypeScalar()){
+                idField = idField.getScalarField();
+            }
+            if(idField.validator && idField.validator.regex) {
+                id = new RandExp(idField.validator.regex.source, idField.validator.regex.flags).gen();
+            }
+        }
+
         const resource = factory.newResource(
             classDeclaration.getNamespace(),
             classDeclaration.getName(),
-            classDeclaration.isIdentified() ? 'resource1' : null,
+            classDeclaration.isIdentified() ? id : null,
             factoryOptions
         );
         const serializer = new Serializer(factory, modelManager);
diff --git a/packages/concerto-cli/package-lock.json b/packages/concerto-cli/package-lock.json
index 4adc81cc1e..89417d02d2 100644
--- a/packages/concerto-cli/package-lock.json
+++ b/packages/concerto-cli/package-lock.json
@@ -15,10 +15,9 @@
         "@accordproject/concerto-metamodel": "3.6.0",
         "@accordproject/concerto-tools": "3.6.0",
         "@accordproject/concerto-util": "3.6.0",
-        "@openapi-contrib/openapi-schema-to-json-schema": "^3.2.0",
         "ansi-colors": "4.1.3",
         "glob": "^7.2.0",
-        "json-schema-migrate": "^2.0.0",
+        "randexp": "^0.5.3",
         "semver": "7.3.5",
         "yargs": "17.3.1"
       },
@@ -44,11 +43,11 @@
       }
     },
     "node_modules/@accordproject/concerto-analysis": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/concerto-analysis/-/concerto-analysis-3.2.0.tgz",
-      "integrity": "sha512-is73ZDgFC49ap6ZeL0JQAL8t2VrPeCqrhvXsvOwmK+8WI3WyDfrbk4zu3BnmmztWXeuPfcWwkovA3AtLRET5gA==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@accordproject/concerto-analysis/-/concerto-analysis-3.6.0.tgz",
+      "integrity": "sha512-0Ucj3Yvp0dknHJzP9qjk8H0+l4/bV9qzMNsGVBK2OOrpK2EtsA3Vd9VYHrrZXVv89/utPsLa48s0jYA5gtXEBA==",
       "dependencies": {
-        "@accordproject/concerto-core": "3.2.0",
+        "@accordproject/concerto-core": "3.6.0",
         "semver": "7.3.5"
       },
       "engines": {
@@ -57,13 +56,13 @@
       }
     },
     "node_modules/@accordproject/concerto-core": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/concerto-core/-/concerto-core-3.2.0.tgz",
-      "integrity": "sha512-rBxtsacY1fAKdplYvNf2bRdwqmsfoGOujEHBbpks5gZQP+kXxGmnndzXU+Zkjsxbs/AQKsD5LG5JeOZuYGFD2A==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@accordproject/concerto-core/-/concerto-core-3.6.0.tgz",
+      "integrity": "sha512-4ljdSC2R0VBtrvTFJ8AEA9hv4YOKIZTKtLcgdcijFKs1jIRPJjPv5H4D8lwlY0nb4Og7DPXexqG3iacbuIhh8A==",
       "dependencies": {
-        "@accordproject/concerto-cto": "3.2.0",
-        "@accordproject/concerto-metamodel": "3.2.0",
-        "@accordproject/concerto-util": "3.2.0",
+        "@accordproject/concerto-cto": "3.6.0",
+        "@accordproject/concerto-metamodel": "3.6.0",
+        "@accordproject/concerto-util": "3.6.0",
         "dayjs": "1.10.8",
         "debug": "4.3.1",
         "lorem-ipsum": "2.0.3",
@@ -79,12 +78,12 @@
       }
     },
     "node_modules/@accordproject/concerto-cto": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/concerto-cto/-/concerto-cto-3.2.0.tgz",
-      "integrity": "sha512-rCEtJrG9njmMZXt1t+VCb7gWf9aj33EhS5eWU7bYUtS0PfwxtIxuP44BJieohdFAZ4k4patLOWDBFHy6xRwNlA==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@accordproject/concerto-cto/-/concerto-cto-3.6.0.tgz",
+      "integrity": "sha512-4b27wVKq2RxfPG6mRZ4VmWd9iwAM4QRXZRvfHCN57e6GiuosXDwhbZc1rx789eKukSTeOv2LJXuwCFFEk6qamQ==",
       "dependencies": {
-        "@accordproject/concerto-metamodel": "3.2.0",
-        "@accordproject/concerto-util": "3.2.0",
+        "@accordproject/concerto-metamodel": "3.6.0",
+        "@accordproject/concerto-util": "3.6.0",
         "path-browserify": "1.0.1"
       },
       "engines": {
@@ -93,11 +92,11 @@
       }
     },
     "node_modules/@accordproject/concerto-metamodel": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/concerto-metamodel/-/concerto-metamodel-3.2.0.tgz",
-      "integrity": "sha512-tLOCVCwAlrIE9S5w3ycH0OpjDdjImT0lu3hmuW/4al9U9ZtKT7baGCRSrDl2jdiY7om46OOZdIFdN92tO0gNPA==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@accordproject/concerto-metamodel/-/concerto-metamodel-3.6.0.tgz",
+      "integrity": "sha512-5ojIrvq/hBAxwXH2Vwp5acVVgt11S76vQF3aWrOp4nN+PU8+H/kFYR26y19Pi3Ndwd5VWGRXzRVntEuNIrZrhQ==",
       "dependencies": {
-        "@accordproject/concerto-util": "3.2.0"
+        "@accordproject/concerto-util": "3.6.0"
       },
       "engines": {
         "node": ">=14",
@@ -105,12 +104,12 @@
       }
     },
     "node_modules/@accordproject/concerto-tools": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/concerto-tools/-/concerto-tools-3.2.0.tgz",
-      "integrity": "sha512-oxoPQoIL8PmIvgmiDUUXN3Ly0iUPpx30Oj3vSlO/Qaks/7Ywe/Y8yxCQk40kZWecQKyCQgk0K5fDNHG4ctaWlg==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@accordproject/concerto-tools/-/concerto-tools-3.6.0.tgz",
+      "integrity": "sha512-pbN3m+9TMUJAJKbuWIaVfypIscMkc16hWtPZrMgiWslYTC75NA3HIu/Uk0JPL+sBq3/xZ8t7yKS3llcIaRBbrg==",
       "dependencies": {
-        "@accordproject/concerto-core": "3.2.0",
-        "@accordproject/concerto-util": "3.2.0",
+        "@accordproject/concerto-core": "3.6.0",
+        "@accordproject/concerto-util": "3.6.0",
         "ajv": "8.10.0",
         "ajv-formats": "2.1.1",
         "camelcase": "6.3.0",
@@ -123,9 +122,9 @@
       }
     },
     "node_modules/@accordproject/concerto-util": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/concerto-util/-/concerto-util-3.2.0.tgz",
-      "integrity": "sha512-evzBWY+BLPSVgB1OgGKhT2cIXz6kZAhPqG0yWjaHAyUJYpvyN0PmBzmc4bI5AiL5RUseyBVkArfl2IAE9jz49w==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@accordproject/concerto-util/-/concerto-util-3.6.0.tgz",
+      "integrity": "sha512-HLJuXoQkVmOfvr7nZ/0cDkSnJCL2nQeQ21tdDIpg2jJohIbzPzBSHTCltuUU5TBEK2tkLLjNXymeQD6PNFmSSg==",
       "dependencies": {
         "@supercharge/promise-pool": "1.7.0",
         "axios": "0.23.0",
@@ -807,14 +806,6 @@
         "@jridgewell/sourcemap-codec": "1.4.14"
       }
     },
-    "node_modules/@openapi-contrib/openapi-schema-to-json-schema": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@openapi-contrib/openapi-schema-to-json-schema/-/openapi-schema-to-json-schema-3.2.0.tgz",
-      "integrity": "sha512-Gj6C0JwCr8arj0sYuslWXUBSP/KnUlEGnPW4qxlXvAl543oaNQgMgIgkQUA6vs5BCCvwTEiL8m/wdWzfl4UvSw==",
-      "dependencies": {
-        "fast-deep-equal": "^3.1.3"
-      }
-    },
     "node_modules/@sinonjs/commons": {
       "version": "1.8.5",
       "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.8.5.tgz",
@@ -2494,14 +2485,6 @@
         "node": ">=4"
       }
     },
-    "node_modules/json-schema-migrate": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/json-schema-migrate/-/json-schema-migrate-2.0.0.tgz",
-      "integrity": "sha512-r38SVTtojDRp4eD6WsCqiE0eNDt4v1WalBXb9cyZYw9ai5cGtBwzRNWjHzJl38w6TxFkXAIA7h+fyX3tnrAFhQ==",
-      "dependencies": {
-        "ajv": "^8.0.0"
-      }
-    },
     "node_modules/json-schema-traverse": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
@@ -4198,22 +4181,22 @@
   },
   "dependencies": {
     "@accordproject/concerto-analysis": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/concerto-analysis/-/concerto-analysis-3.2.0.tgz",
-      "integrity": "sha512-is73ZDgFC49ap6ZeL0JQAL8t2VrPeCqrhvXsvOwmK+8WI3WyDfrbk4zu3BnmmztWXeuPfcWwkovA3AtLRET5gA==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@accordproject/concerto-analysis/-/concerto-analysis-3.6.0.tgz",
+      "integrity": "sha512-0Ucj3Yvp0dknHJzP9qjk8H0+l4/bV9qzMNsGVBK2OOrpK2EtsA3Vd9VYHrrZXVv89/utPsLa48s0jYA5gtXEBA==",
       "requires": {
-        "@accordproject/concerto-core": "3.2.0",
+        "@accordproject/concerto-core": "3.6.0",
         "semver": "7.3.5"
       }
     },
     "@accordproject/concerto-core": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/concerto-core/-/concerto-core-3.2.0.tgz",
-      "integrity": "sha512-rBxtsacY1fAKdplYvNf2bRdwqmsfoGOujEHBbpks5gZQP+kXxGmnndzXU+Zkjsxbs/AQKsD5LG5JeOZuYGFD2A==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@accordproject/concerto-core/-/concerto-core-3.6.0.tgz",
+      "integrity": "sha512-4ljdSC2R0VBtrvTFJ8AEA9hv4YOKIZTKtLcgdcijFKs1jIRPJjPv5H4D8lwlY0nb4Og7DPXexqG3iacbuIhh8A==",
       "requires": {
-        "@accordproject/concerto-cto": "3.2.0",
-        "@accordproject/concerto-metamodel": "3.2.0",
-        "@accordproject/concerto-util": "3.2.0",
+        "@accordproject/concerto-cto": "3.6.0",
+        "@accordproject/concerto-metamodel": "3.6.0",
+        "@accordproject/concerto-util": "3.6.0",
         "dayjs": "1.10.8",
         "debug": "4.3.1",
         "lorem-ipsum": "2.0.3",
@@ -4225,30 +4208,30 @@
       }
     },
     "@accordproject/concerto-cto": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/concerto-cto/-/concerto-cto-3.2.0.tgz",
-      "integrity": "sha512-rCEtJrG9njmMZXt1t+VCb7gWf9aj33EhS5eWU7bYUtS0PfwxtIxuP44BJieohdFAZ4k4patLOWDBFHy6xRwNlA==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@accordproject/concerto-cto/-/concerto-cto-3.6.0.tgz",
+      "integrity": "sha512-4b27wVKq2RxfPG6mRZ4VmWd9iwAM4QRXZRvfHCN57e6GiuosXDwhbZc1rx789eKukSTeOv2LJXuwCFFEk6qamQ==",
       "requires": {
-        "@accordproject/concerto-metamodel": "3.2.0",
-        "@accordproject/concerto-util": "3.2.0",
+        "@accordproject/concerto-metamodel": "3.6.0",
+        "@accordproject/concerto-util": "3.6.0",
         "path-browserify": "1.0.1"
       }
     },
     "@accordproject/concerto-metamodel": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/concerto-metamodel/-/concerto-metamodel-3.2.0.tgz",
-      "integrity": "sha512-tLOCVCwAlrIE9S5w3ycH0OpjDdjImT0lu3hmuW/4al9U9ZtKT7baGCRSrDl2jdiY7om46OOZdIFdN92tO0gNPA==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@accordproject/concerto-metamodel/-/concerto-metamodel-3.6.0.tgz",
+      "integrity": "sha512-5ojIrvq/hBAxwXH2Vwp5acVVgt11S76vQF3aWrOp4nN+PU8+H/kFYR26y19Pi3Ndwd5VWGRXzRVntEuNIrZrhQ==",
       "requires": {
-        "@accordproject/concerto-util": "3.2.0"
+        "@accordproject/concerto-util": "3.6.0"
       }
     },
     "@accordproject/concerto-tools": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/concerto-tools/-/concerto-tools-3.2.0.tgz",
-      "integrity": "sha512-oxoPQoIL8PmIvgmiDUUXN3Ly0iUPpx30Oj3vSlO/Qaks/7Ywe/Y8yxCQk40kZWecQKyCQgk0K5fDNHG4ctaWlg==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@accordproject/concerto-tools/-/concerto-tools-3.6.0.tgz",
+      "integrity": "sha512-pbN3m+9TMUJAJKbuWIaVfypIscMkc16hWtPZrMgiWslYTC75NA3HIu/Uk0JPL+sBq3/xZ8t7yKS3llcIaRBbrg==",
       "requires": {
-        "@accordproject/concerto-core": "3.2.0",
-        "@accordproject/concerto-util": "3.2.0",
+        "@accordproject/concerto-core": "3.6.0",
+        "@accordproject/concerto-util": "3.6.0",
         "ajv": "8.10.0",
         "ajv-formats": "2.1.1",
         "camelcase": "6.3.0",
@@ -4257,9 +4240,9 @@
       }
     },
     "@accordproject/concerto-util": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@accordproject/concerto-util/-/concerto-util-3.2.0.tgz",
-      "integrity": "sha512-evzBWY+BLPSVgB1OgGKhT2cIXz6kZAhPqG0yWjaHAyUJYpvyN0PmBzmc4bI5AiL5RUseyBVkArfl2IAE9jz49w==",
+      "version": "3.6.0",
+      "resolved": "https://registry.npmjs.org/@accordproject/concerto-util/-/concerto-util-3.6.0.tgz",
+      "integrity": "sha512-HLJuXoQkVmOfvr7nZ/0cDkSnJCL2nQeQ21tdDIpg2jJohIbzPzBSHTCltuUU5TBEK2tkLLjNXymeQD6PNFmSSg==",
       "requires": {
         "@supercharge/promise-pool": "1.7.0",
         "axios": "0.23.0",
@@ -4785,14 +4768,6 @@
         "@jridgewell/sourcemap-codec": "1.4.14"
       }
     },
-    "@openapi-contrib/openapi-schema-to-json-schema": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/@openapi-contrib/openapi-schema-to-json-schema/-/openapi-schema-to-json-schema-3.2.0.tgz",
-      "integrity": "sha512-Gj6C0JwCr8arj0sYuslWXUBSP/KnUlEGnPW4qxlXvAl543oaNQgMgIgkQUA6vs5BCCvwTEiL8m/wdWzfl4UvSw==",
-      "requires": {
-        "fast-deep-equal": "^3.1.3"
-      }
-    },
     "@sinonjs/commons": {
       "version": "1.8.5",
       "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.8.5.tgz",
@@ -6033,14 +6008,6 @@
         }
       }
     },
-    "json-schema-migrate": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/json-schema-migrate/-/json-schema-migrate-2.0.0.tgz",
-      "integrity": "sha512-r38SVTtojDRp4eD6WsCqiE0eNDt4v1WalBXb9cyZYw9ai5cGtBwzRNWjHzJl38w6TxFkXAIA7h+fyX3tnrAFhQ==",
-      "requires": {
-        "ajv": "^8.0.0"
-      }
-    },
     "json-schema-traverse": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
diff --git a/packages/concerto-cli/package.json b/packages/concerto-cli/package.json
index b374716f9e..f880252604 100644
--- a/packages/concerto-cli/package.json
+++ b/packages/concerto-cli/package.json
@@ -51,6 +51,7 @@
     "@accordproject/concerto-util": "3.6.0",
     "ansi-colors": "4.1.3",
     "glob": "^7.2.0",
+    "randexp": "^0.5.3",
     "semver": "7.3.5",
     "yargs": "17.3.1"
   },
diff --git a/packages/concerto-cli/test/cli.js b/packages/concerto-cli/test/cli.js
index da06b541e5..96376d466e 100644
--- a/packages/concerto-cli/test/cli.js
+++ b/packages/concerto-cli/test/cli.js
@@ -30,7 +30,7 @@ const { Parser } = require('@accordproject/concerto-cto');
 
 describe('concerto-cli', () => {
     const models = [path.resolve(__dirname, 'models/dom.cto'),path.resolve(__dirname, 'models/money.cto')];
-    const offlineModels = [path.resolve(__dirname, 'models/contract.cto'),path.resolve(__dirname, 'models/dom.cto'),path.resolve(__dirname, 'models/money.cto')];
+    const offlineModels = [path.resolve(__dirname, 'models/contract.cto'),path.resolve(__dirname, 'models/dom.cto'),path.resolve(__dirname, 'models/money.cto'),path.resolve(__dirname, 'models/person.cto')];
     const input1 = path.resolve(__dirname, 'data/input1.json');
     const input2 = path.resolve(__dirname, 'data/input2.json');
     const inputText1 = fs.readFileSync(input1, 'utf8');
@@ -641,5 +641,25 @@ describe('concerto-cli', () => {
             obj.$class.should.equal('org.accordproject.cicero.dom.ContractTemplate');
             Object.keys(obj).should.eql(['$class', 'metadata', 'content', 'id', '$identifier']);
         });
+
+        it('should generate an identified object with an identifier property with regex', async () => {
+            const obj = await Commands.generate(
+                offlineModels,
+                'person@1.0.0.Person',
+                'sample',
+                { offline: true, optionalFields: true }
+            );
+            obj.ssn.should.match(/\d{3}-\d{2}-\d{4}/);
+        });
+
+        it('should generate an identified object identified by a scalar', async () => {
+            const obj = await Commands.generate(
+                offlineModels,
+                'person@1.0.0.Person2',
+                'sample',
+                { offline: true, optionalFields: true }
+            );
+            (typeof obj.ssn).should.equal('string');
+        });
     });
 });
diff --git a/packages/concerto-cli/test/models/person.cto b/packages/concerto-cli/test/models/person.cto
new file mode 100644
index 0000000000..3996e53c00
--- /dev/null
+++ b/packages/concerto-cli/test/models/person.cto
@@ -0,0 +1,19 @@
+namespace person@1.0.0
+
+concept Person identified by ssn {
+ o String name
+ @description("Height (cm)")
+ o Double height range=[0.0,]
+ o DateTime dateOfBirth
+ o String ssn regex=/\d{3}-\d{2}-\d{4}/
+}
+
+scalar SSN extends String regex=/\d{3}-\d{2}-\d{4}/
+
+concept Person2 identified by ssn {
+ o String name
+ @description("Height (cm)")
+ o Double height range=[0.0,]
+ o DateTime dateOfBirth
+ o SSN ssn
+}
diff --git a/packages/concerto-core/lib/factory.js b/packages/concerto-core/lib/factory.js
index 270782b84c..d6574c4d5e 100644
--- a/packages/concerto-core/lib/factory.js
+++ b/packages/concerto-core/lib/factory.js
@@ -119,6 +119,17 @@ class Factory {
                     type: type
                 }));
             }
+
+            if (id) {
+                let idFullField = classDecl.getProperty(idField);
+                if (idFullField?.isTypeScalar?.()){
+                    idFullField = idFullField.getScalarField();
+                }
+                // if regex on identifier field & provided id does not match regex, throw error
+                if(idFullField?.validator?.regex && (idFullField.validator?.regex.test(id) === false)) {
+                    throw new Error('Provided id does not match regex: ' + idFullField?.validator?.regex);
+                }
+            }
         } else if(id) {
             throw new Error('Type is not identifiable ' + classDecl.getFullyQualifiedName());
         }
diff --git a/packages/concerto-core/lib/serializer/instancegenerator.js b/packages/concerto-core/lib/serializer/instancegenerator.js
index 4267da4c19..aa1ba3ec1a 100644
--- a/packages/concerto-core/lib/serializer/instancegenerator.js
+++ b/packages/concerto-core/lib/serializer/instancegenerator.js
@@ -160,7 +160,16 @@ class InstanceGenerator {
 
         let id = null;
         if (classDeclaration.isIdentified()) {
-            id = this.generateRandomId(classDeclaration);
+            let idFieldName = classDeclaration.getIdentifierFieldName();
+            let idField = classDeclaration.getProperty(idFieldName);
+            if (idField?.isTypeScalar?.()){
+                idField = idField.getScalarField();
+            }
+            if(idField?.validator?.regex){
+                id = parameters.valueGenerator.getRegex(fieldOrScalarDeclaration.validator.regex);
+            } else {
+                id = this.generateRandomId(classDeclaration);
+            }
         }
         let resource = parameters.factory.newResource(classDeclaration.getNamespace(), classDeclaration.getName(), id);
         parameters.stack.push(resource);
diff --git a/packages/concerto-core/test/models/test.js b/packages/concerto-core/test/models/test.js
index af00f20262..76ba6aba0b 100644
--- a/packages/concerto-core/test/models/test.js
+++ b/packages/concerto-core/test/models/test.js
@@ -53,7 +53,7 @@ describe('Test Model', function(){
 
             // create a new instance
             let cObject = factory.newResource(
-                'org.acme', 'Vehicle', 'CAR_123' );
+                'org.acme', 'Vehicle', 'YVBVLSFXXAL342374' );
 
             // model is defined as a string
             // set model to a number
@@ -61,10 +61,10 @@ describe('Test Model', function(){
             cObject.model.should.equal('CAPRI');
 
             // now try some invalid values
-            ( function() {cObject.setPropertyValue('model', 1);}).should.throw('Model violation in the "org.acme.Vehicle#CAR_123" instance. The field "model" has a value of "1" (type of value: "number"). Expected type of value: "String".');
-            ( function() {cObject.setPropertyValue('model', true);}).should.throw('Model violation in the "org.acme.Vehicle#CAR_123" instance. The field "model" has a value of "true" (type of value: "boolean"). Expected type of value: "String".');
+            ( function() {cObject.setPropertyValue('model', 1);}).should.throw('Model violation in the "org.acme.Vehicle#YVBVLSFXXAL342374" instance. The field "model" has a value of "1" (type of value: "number"). Expected type of value: "String".');
+            ( function() {cObject.setPropertyValue('model', true);}).should.throw('Model violation in the "org.acme.Vehicle#YVBVLSFXXAL342374" instance. The field "model" has a value of "true" (type of value: "boolean"). Expected type of value: "String".');
             ( function() {cObject.setPropertyValue('model', dayjs.utc());}).should.throw(/.+Expected type of value: "String"./);
-            ( function() {cObject.setPropertyValue('model', [1,2,3]);}).should.throw('Model violation in the "org.acme.Vehicle#CAR_123" instance. The field "model" has a value of "[1,2,3]" (type of value: "object"). Expected type of value: "String".');
+            ( function() {cObject.setPropertyValue('model', [1,2,3]);}).should.throw('Model violation in the "org.acme.Vehicle#YVBVLSFXXAL342374" instance. The field "model" has a value of "[1,2,3]" (type of value: "object"). Expected type of value: "String".');
         });
     });
 
@@ -161,12 +161,12 @@ describe('Test Model', function(){
             // create a new instance
             let factory = new Factory(modelManager);
             let cObject =  factory.newResource(
-                'org.acme', 'Vehicle', 'CAR_123' );
+                'org.acme', 'Vehicle', 'YVBVLSFXXAL342374' );
 
             // vin is the identifying field for Vehicles, so should have been
             // set during object creation
-            cObject.vin.should.equal('CAR_123');
-            cObject.getFullyQualifiedIdentifier().should.equal('org.acme.Vehicle#CAR_123');
+            cObject.vin.should.equal('YVBVLSFXXAL342374');
+            cObject.getFullyQualifiedIdentifier().should.equal('org.acme.Vehicle#YVBVLSFXXAL342374');
 
             cObject.make = 'Renault';
 
@@ -190,15 +190,15 @@ describe('Test Model', function(){
             // model is defined as a string
             // set model to a number
             cObject.model = 1;
-            ( function() {serializer.toJSON(cObject);}).should.throw('Model violation in the "org.acme.Vehicle#CAR_123" instance. The field "model" has a value of "1" (type of value: "number"). Expected type of value: "String".');
+            ( function() {serializer.toJSON(cObject);}).should.throw('Model violation in the "org.acme.Vehicle#YVBVLSFXXAL342374" instance. The field "model" has a value of "1" (type of value: "number"). Expected type of value: "String".');
 
             // set model to a double
             cObject.model = 42.05;
-            ( function() {serializer.toJSON(cObject);}).should.throw('Model violation in the "org.acme.Vehicle#CAR_123" instance. The field "model" has a value of "42.05" (type of value: "number"). Expected type of value: "String".');
+            ( function() {serializer.toJSON(cObject);}).should.throw('Model violation in the "org.acme.Vehicle#YVBVLSFXXAL342374" instance. The field "model" has a value of "42.05" (type of value: "number"). Expected type of value: "String".');
 
             // set model to a Boolean
             cObject.model = true;
-            ( function() {serializer.toJSON(cObject);}).should.throw('Model violation in the "org.acme.Vehicle#CAR_123" instance. The field "model" has a value of "true" (type of value: "boolean"). Expected type of value: "String".');
+            ( function() {serializer.toJSON(cObject);}).should.throw('Model violation in the "org.acme.Vehicle#YVBVLSFXXAL342374" instance. The field "model" has a value of "true" (type of value: "boolean"). Expected type of value: "String".');
 
             // set model to a DateTime
             cObject.model = dayjs.utc();
@@ -206,19 +206,19 @@ describe('Test Model', function(){
 
             // set model to an object
             cObject.model = { 'foo' : 'bar' };
-            ( function() {serializer.toJSON(cObject);}).should.throw('Model violation in the "org.acme.Vehicle#CAR_123" instance. The field "model" has a value of "{"foo":"bar"}" (type of value: "object"). Expected type of value: "String".');
+            ( function() {serializer.toJSON(cObject);}).should.throw('Model violation in the "org.acme.Vehicle#YVBVLSFXXAL342374" instance. The field "model" has a value of "{"foo":"bar"}" (type of value: "object"). Expected type of value: "String".');
 
             // set model to null
             cObject.model = null;
-            ( function() {serializer.toJSON(cObject);}).should.throw('The instance "org.acme.Vehicle#CAR_123" is missing the required field "model".');
+            ( function() {serializer.toJSON(cObject);}).should.throw('The instance "org.acme.Vehicle#YVBVLSFXXAL342374" is missing the required field "model".');
 
             // set model to an array
             cObject.model = ['1','2'];
-            ( function() {serializer.toJSON(cObject);}).should.throw('Model violation in the "org.acme.Vehicle#CAR_123" instance. The field "model" has a value of "["1","2"]" (type of value: "object"). Expected type of value: "String".');
+            ( function() {serializer.toJSON(cObject);}).should.throw('Model violation in the "org.acme.Vehicle#YVBVLSFXXAL342374" instance. The field "model" has a value of "["1","2"]" (type of value: "object"). Expected type of value: "String".');
 
             // set model to a function
             cObject.model = function() {throw new Error('OOps');};
-            ( function() {serializer.toJSON(cObject);}).should.throw('Model violation in the "org.acme.Vehicle#CAR_123" instance. The field "model" has a value of "undefined" (type of value: "function"). Expected type of value: "String".');
+            ( function() {serializer.toJSON(cObject);}).should.throw('Model violation in the "org.acme.Vehicle#YVBVLSFXXAL342374" instance. The field "model" has a value of "undefined" (type of value: "function"). Expected type of value: "String".');
         });
     });
 
diff --git a/packages/concerto-core/test/serializer/instancegenerator.js b/packages/concerto-core/test/serializer/instancegenerator.js
index edbf7cd5b4..5538ac92e0 100644
--- a/packages/concerto-core/test/serializer/instancegenerator.js
+++ b/packages/concerto-core/test/serializer/instancegenerator.js
@@ -443,6 +443,17 @@ describe('InstanceGenerator', () => {
             resource.ssn.should.match(/^\d{3}-\d{2}-\d{4}$/);
             resource.ssn2.should.equal('000-00-0000');
         });
+
+        it('should throw an error when id provided does not match regex on id field', function () {
+            (() => test(`namespace org.acme.test
+
+            scalar SSN extends String regex=/^\\d{3}-\\d{2}-\\d{4}$/
+
+            asset MyAsset identified by ssn {
+                o String id
+                o SSN ssn
+            }`)).should.throw(/Provided id does not match regex/);
+        });
     });
 
     describe('#findConcreteSubclass', () => {