diff --git a/app/components/icons/check.js b/app/components/icons/check.js
new file mode 100644
index 0000000..a2f7486
--- /dev/null
+++ b/app/components/icons/check.js
@@ -0,0 +1 @@
+export { Check as default } from 'ember-mdi';
diff --git a/app/components/toast.hbs b/app/components/toast.hbs
index 4de891d..bdb61d3 100644
--- a/app/components/toast.hbs
+++ b/app/components/toast.hbs
@@ -1,6 +1,6 @@
 {{#in-element this.toaster.destinationElement insertBefore=null}}
   <div
-    class='absolute max-w-sm border rounded bg-base-7 shadow-sm'
+    class='absolute border rounded shadow-sm'
     role='alert'
     style={{this.style}}
     {{did-insert this.didInsert}}
diff --git a/app/components/toast/danger.js b/app/components/toast/danger.js
new file mode 100644
index 0000000..909ecdd
--- /dev/null
+++ b/app/components/toast/danger.js
@@ -0,0 +1,20 @@
+import ToastThemeComponent from './theme';
+import { ExclamationThick } from 'ember-mdi';
+
+export default class ToastDangerComponent extends ToastThemeComponent {
+  get bg() {
+    return 'bg-danger-light';
+  }
+
+  get color() {
+    return null;
+  }
+
+  get borderColor() {
+    return 'border-danger';
+  }
+
+  get icon() {
+    return ExclamationThick;
+  }
+}
diff --git a/app/components/toast/success.hbs b/app/components/toast/success.hbs
deleted file mode 100644
index 333cd87..0000000
--- a/app/components/toast/success.hbs
+++ /dev/null
@@ -1,19 +0,0 @@
-<Toast>
-  <div class='inline-flex flex-shrink-0 justify-center items-center self-start'>
-    <Icons::Loading @spin={{true}} class='mr-4' />
-  </div>
-
-  <div>
-    {{@text}}
-  </div>
-
-  <button
-    type='button'
-    class='ml-auto self-start'
-    {{! data-dismiss-target='#toast-default' }}
-    aria-label='Close'
-    {{on 'click' @onClose}}
-  >
-    <Icons::Close />
-  </button>
-</Toast>
diff --git a/app/components/toast/success.js b/app/components/toast/success.js
index 87bf3ac..c4a522b 100644
--- a/app/components/toast/success.js
+++ b/app/components/toast/success.js
@@ -1,3 +1,24 @@
-import Component from '@glimmer/component';
+import ToastThemeComponent from './theme';
+import { Check } from 'ember-mdi';
 
-export default class ToastSuccessComponent extends Component {}
+export default class ToastSuccessComponent extends ToastThemeComponent {
+  get bg() {
+    return 'bg-success-light';
+  }
+
+  get color() {
+    return null;
+  }
+
+  get borderColor() {
+    return 'border-success';
+  }
+
+  get icon() {
+    return Check;
+  }
+
+  get autoClose() {
+    return true;
+  }
+}
diff --git a/app/components/toast/theme.hbs b/app/components/toast/theme.hbs
new file mode 100644
index 0000000..4dde033
--- /dev/null
+++ b/app/components/toast/theme.hbs
@@ -0,0 +1,35 @@
+<Toast
+  @autoClose={{this.autoClose}}
+  @onClose={{@onClose}}
+  class='{{this.bg}} {{this.color}} {{this.borderColor}} {{this.width}}'
+  as |toast|
+>
+  <div class='flex items-center'>
+    {{#if this.icon}}
+      <div
+        class='inline-flex flex-shrink-0 justify-center items-center self-start'
+      >
+        <this.icon class='mr-4 {{this.color}}' />
+      </div>
+    {{/if}}
+
+    <div class='mr-4'>
+      {{#if @header}}
+        <div class='font-semibold mb-2'>{{@header}}</div>
+      {{/if}}
+      {{#if @text}}
+        {{@text}}
+      {{/if}}
+    </div>
+
+    <button
+      type='button'
+      class='ml-auto self-start'
+      {{! data-dismiss-target='#toast-default' }}
+      aria-label='Close'
+      {{on 'click' toast.invokeOnClose}}
+    >
+      <Icons::Close />
+    </button>
+  </div>
+</Toast>
diff --git a/app/components/toast/theme.js b/app/components/toast/theme.js
new file mode 100644
index 0000000..230dce7
--- /dev/null
+++ b/app/components/toast/theme.js
@@ -0,0 +1,19 @@
+import Component from '@glimmer/component';
+
+export default class ToastThemeComponent extends Component {
+  get bg() {
+    return 'bg-base-7';
+  }
+
+  get color() {
+    return null;
+  }
+
+  get borderColor() {
+    return null;
+  }
+
+  get width() {
+    return 'w-80';
+  }
+}
diff --git a/app/controllers/admin/keys/key/edit.js b/app/controllers/admin/keys/key/edit.js
index 7a1d1ff..743ef42 100644
--- a/app/controllers/admin/keys/key/edit.js
+++ b/app/controllers/admin/keys/key/edit.js
@@ -26,6 +26,11 @@ export default class AdminKeysKeyEditController extends Controller {
     try {
       const key = await this.model.save(value);
 
+      this.toaster.successToast({
+        header: 'Success',
+        text: 'The key has been successfuly updated',
+      });
+
       if (this.router.isActive('admin.keys.key')) {
         await this.router.refresh('admin.keys.key', key.uid);
       }
diff --git a/app/services/toaster.js b/app/services/toaster.js
index c040fab..ff621ed 100644
--- a/app/services/toaster.js
+++ b/app/services/toaster.js
@@ -3,6 +3,7 @@ import { tracked } from '@glimmer/tracking';
 import { hbs } from 'ember-template-imports';
 import { action } from '@ember/object';
 import SuccessToast from '../components/toast/success';
+import DangerToast from '../components/toast/danger';
 import TaskToast from '../components/toast/task';
 
 export default class ToasterService extends Service {
@@ -18,12 +19,23 @@ export default class ToasterService extends Service {
   }
 
   @action
-  successToast({ text }) {
+  successToast({ text, header }) {
     const onClose = () => {
       this.container = this.container.filter((item) => item !== wrapper);
     };
 
-    const wrapper = hbs`<SuccessToast @text={{text}} @onClose={{onClose}} />`;
+    const wrapper = hbs`<SuccessToast @header={{header}} @text={{text}} @onClose={{onClose}} />`;
+
+    this.container = this.container.concat([wrapper]);
+  }
+
+  @action
+  dangerToast({ text, header }) {
+    const onClose = () => {
+      this.container = this.container.filter((item) => item !== wrapper);
+    };
+
+    const wrapper = hbs`<DangerToast @header={{header}} @text={{text}} @onClose={{onClose}} />`;
 
     this.container = this.container.concat([wrapper]);
   }
diff --git a/app/utils/query.js b/app/utils/query.js
index bfda9ec..599d40e 100644
--- a/app/utils/query.js
+++ b/app/utils/query.js
@@ -2,6 +2,7 @@ import { instance } from '../instance-initializers/application';
 
 export default function query(path, options = {}) {
   const session = instance.lookup('service:session');
+  const toaster = instance.lookup('service:toaster');
   const { url, key } = session.data.authenticated;
   const defaultHeaders = { 'Content-Type': 'application/json' };
   const headers = new Headers(Object.assign(defaultHeaders, options.headers));
@@ -15,13 +16,29 @@ export default function query(path, options = {}) {
     Object.assign(options, { headers })
   );
 
-  return fetch(req).then((response) => {
-    if (response.status === 204) {
-      return;
-    } else if (response.ok) {
-      return response.json();
-    } else {
-      throw new Error('Network response was not OK');
-    }
-  });
+  return fetch(req)
+    .then((response) => {
+      if (response.status === 204) {
+        return;
+      } else if (response.ok) {
+        return response.json();
+      } else {
+        response.json().then((reason) => {
+          toaster.dangerToast({
+            header: reason.type,
+            text: reason.message,
+          });
+
+          throw new Error('Network response was not OK');
+        });
+      }
+    })
+    .catch((response) => {
+      response.json().then((reason) => {
+        toaster.dangerToast({
+          header: reason.type,
+          text: reason.message,
+        });
+      });
+    });
 }
diff --git a/tests/integration/components/toast/theme-test.js b/tests/integration/components/toast/theme-test.js
new file mode 100644
index 0000000..26c5d8f
--- /dev/null
+++ b/tests/integration/components/toast/theme-test.js
@@ -0,0 +1,26 @@
+import { module, test } from 'qunit';
+import { setupRenderingTest } from 'meiliadmin/tests/helpers';
+import { render } from '@ember/test-helpers';
+import { hbs } from 'ember-cli-htmlbars';
+
+module('Integration | Component | toast/theme', function (hooks) {
+  setupRenderingTest(hooks);
+
+  test('it renders', async function (assert) {
+    // Set any properties with this.set('myProperty', 'value');
+    // Handle any actions with this.set('myAction', function(val) { ... });
+
+    await render(hbs`<Toast::Theme />`);
+
+    assert.dom(this.element).hasText('');
+
+    // Template block usage:
+    await render(hbs`
+      <Toast::Theme>
+        template block text
+      </Toast::Theme>
+    `);
+
+    assert.dom(this.element).hasText('template block text');
+  });
+});