diff --git a/CHANGELOG.md b/CHANGELOG.md
index 74acfc9..c778cb7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [2.4.1-beta-1] - 2026-06-26
 
 ### Fixed
+- Fix schema validation crash on 204 No Content endpoints when `validate_schema: true`.
 - Resolve external `$ref` (HTTP/HTTPS URLs) instead of crashing with `TypeError`. External schemas are fetched, cached, and inlined at parse time using Node's built-in `http`/`https` modules.
 
 
diff --git a/seeds/generatorTestBody204Initial.json b/seeds/generatorTestBody204Initial.json
new file mode 100644
index 0000000..84cb643
--- /dev/null
+++ b/seeds/generatorTestBody204Initial.json
@@ -0,0 +1,43 @@
+{
+  "name": "/pets/{id}-204",
+  "aux": {
+    "status": "204",
+    "body": false,
+    "consumes": false,
+    "bodyResponse": {
+      "500": {
+        "type": "object",
+        "required": ["code", "message"],
+        "properties": {
+          "code": { "type": "integer", "format": "int32" },
+          "message": { "type": "string" }
+        }
+      }
+    }
+  },
+  "response": [],
+  "request": {
+    "method": "DELETE",
+    "header": [],
+    "body": { "mode": "raw", "raw": "" },
+    "url": {
+      "raw": "{{host}}{{port}}{{basePath}}/pets/{{id}}",
+      "host": ["{{host}}{{port}}{{basePath}}"],
+      "path": ["/pets/{{id}}"]
+    }
+  },
+  "event": [
+    {
+      "listen": "test",
+      "script": {
+        "id": "test-204-uuid",
+        "type": "text/javascript",
+        "exec": [
+          "pm.test(\"Status code is 204\", function () {",
+          "    pm.response.to.have.status(204);",
+          "});"
+        ]
+      }
+    }
+  ]
+}
diff --git a/seeds/generatorTestBody204Result.json b/seeds/generatorTestBody204Result.json
new file mode 100644
index 0000000..84cb643
--- /dev/null
+++ b/seeds/generatorTestBody204Result.json
@@ -0,0 +1,43 @@
+{
+  "name": "/pets/{id}-204",
+  "aux": {
+    "status": "204",
+    "body": false,
+    "consumes": false,
+    "bodyResponse": {
+      "500": {
+        "type": "object",
+        "required": ["code", "message"],
+        "properties": {
+          "code": { "type": "integer", "format": "int32" },
+          "message": { "type": "string" }
+        }
+      }
+    }
+  },
+  "response": [],
+  "request": {
+    "method": "DELETE",
+    "header": [],
+    "body": { "mode": "raw", "raw": "" },
+    "url": {
+      "raw": "{{host}}{{port}}{{basePath}}/pets/{{id}}",
+      "host": ["{{host}}{{port}}{{basePath}}"],
+      "path": ["/pets/{{id}}"]
+    }
+  },
+  "event": [
+    {
+      "listen": "test",
+      "script": {
+        "id": "test-204-uuid",
+        "type": "text/javascript",
+        "exec": [
+          "pm.test(\"Status code is 204\", function () {",
+          "    pm.response.to.have.status(204);",
+          "});"
+        ]
+      }
+    }
+  ]
+}
diff --git a/src/generator/environmentVariablesNames.js b/src/generator/environmentVariablesNames.js
index 4fdb0ae..c4337c0 100644
--- a/src/generator/environmentVariablesNames.js
+++ b/src/generator/environmentVariablesNames.js
@@ -140,6 +140,7 @@ module.exports = function() {
 	}
 	function extractVariablesFromTest(aux, execCode, numerateItem, items){
 		if (global.configurationFile.schema_is_inline === false) {
+			if (!aux.bodyResponse?.[aux.status]) return;
 			const key = numerateItem + 'schemaTest';
 			for (let i in execCode){
 				if (execCode[i] === 'var schema = pm.environment.get("schemaTest");'){
diff --git a/src/generator/testBody.js b/src/generator/testBody.js
index 28544a4..26133b0 100644
--- a/src/generator/testBody.js
+++ b/src/generator/testBody.js
@@ -9,13 +9,16 @@ module.exports = function() {
   
   return function get(postmanRequest, configurationFile) {
 		
-		if ((!postmanRequest.aux.bodyResponse || !postmanRequest.aux.bodyResponse[postmanRequest.aux.status]) && postmanRequest.aux.status === 200) {
-			console.warn(
-				'\x1b[33m%s\x1b[0m',
-				`Test: ${postmanRequest.request.method} ${postmanRequest.name} (${postmanRequest.aux.suffix === undefined ? 'main test' : postmanRequest.aux.suffix.trim()}) without schema validation test because it has a different response than 'application/json'`
+		if (!postmanRequest.aux.bodyResponse || !postmanRequest.aux.bodyResponse[postmanRequest.aux.status]) {
+			const noBodyStatuses = ['204', '205', '304'];
+			if (!noBodyStatuses.includes(String(postmanRequest.aux.status))) {
+				console.warn(
+					'\x1b[33m%s\x1b[0m',
+					`Test: ${postmanRequest.request.method} ${postmanRequest.name} (${postmanRequest.aux.suffix === undefined ? 'main test' : postmanRequest.aux.suffix.trim()}) without schema validation test because it has a different response than 'application/json'`
 				);
+			}
 			return postmanRequest;
-		} 
+		}
 		let schemaJSON;
 
 		if (configurationFile.schema_is_inline === false) {
diff --git a/test/generator-envVariables.js b/test/generator-envVariables.js
new file mode 100644
index 0000000..c6674e3
--- /dev/null
+++ b/test/generator-envVariables.js
@@ -0,0 +1,84 @@
+/** Part of APIAddicts. See LICENSE fileor full copyright and licensing details. Supported by Madrid Digital and CloudAPPi **/
+
+const assert = require('node:assert');
+
+describe('generator-envVariables', () => {
+
+  let savedConfig;
+  let savedEnvVars;
+
+  beforeEach(() => {
+    savedConfig = globalThis.configurationFile;
+    savedEnvVars = globalThis.environmentVariables;
+    globalThis.environmentVariables = {};
+  });
+
+  afterEach(() => {
+    globalThis.configurationFile = savedConfig;
+    globalThis.environmentVariables = savedEnvVars;
+  });
+
+  it('204 no body schema is inline false', () => {
+    globalThis.configurationFile = { schema_is_inline: false, schema_pretty_print: false, is_inline: false };
+
+    const collection = [
+      {
+        name: 'pets',
+        item: [
+          {
+            name: 'pets',
+            item: [
+              {
+                name: '/pets/{id}-204',
+                aux: {
+                  numerateItem: '1',
+                  status: '204',
+                  bodyResponse: {
+                    '500': {
+                      type: 'object',
+                      required: ['code', 'message'],
+                      properties: {
+                        code: { type: 'integer', format: 'int32' },
+                        message: { type: 'string' }
+                      }
+                    }
+                  },
+                  queryParams: []
+                },
+                request: {
+                  method: 'DELETE',
+                  header: [],
+                  body: { mode: 'raw', raw: '' },
+                  url: {
+                    raw: '{{host}}{{port}}{{basePath}}/pets/1',
+                    host: ['{{host}}{{port}}{{basePath}}'],
+                    path: ['/pets/1']
+                  }
+                },
+                event: [
+                  {
+                    listen: 'test',
+                    script: {
+                      id: 'test-204-uuid',
+                      type: 'text/javascript',
+                      exec: [
+                        'pm.test("Status code is 204", function () {',
+                        '    pm.response.to.have.status(204);',
+                        '});'
+                      ]
+                    }
+                  }
+                ]
+              }
+            ]
+          }
+        ]
+      }
+    ];
+
+    const items = require('../src/generator/environmentVariablesNames.js')(collection);
+    const schemaTestItem = items.find(item => item.key?.includes('schemaTest'));
+    assert.strictEqual(schemaTestItem, undefined, 'No schemaTest env variable should be created for 204 No Content');
+  });
+
+});
diff --git a/test/generator-testBody.js b/test/generator-testBody.js
index a6a0246..5c6d6ee 100644
--- a/test/generator-testBody.js
+++ b/test/generator-testBody.js
@@ -13,4 +13,13 @@ describe('generator-testBody', () => {
     assert.deepStrictEqual(definition, definitionResult);
   });
 
+  it('204 no body', () => {
+
+    const definitionInitial = require('../seeds/generatorTestBody204Initial.json');
+    const definitionResult  = require('../seeds/generatorTestBody204Result.json');
+
+    const definition = require('../src/generator/testBody.js')(definitionInitial, {schema_pretty_print: false});
+    assert.deepStrictEqual(definition, definitionResult);
+  });
+
 });
\ No newline at end of file