diff --git a/src/components/commun/Input.jsx b/src/components/commun/Input.jsx
index 2db9e1c..c08fadc 100644
--- a/src/components/commun/Input.jsx
+++ b/src/components/commun/Input.jsx
@@ -1,7 +1,8 @@
 import React from 'react';
 import PropTypes from 'prop-types';
 
-export default function Input({ children, id, isRequired = true, type = 'text', pattern, onChange, list, min, readOnly, isLoading, ariaBusy, value, testId = '' }) {
+export default function Input({ children, id, isRequired = true, autoComplete = 'on', testId = '', type = 'text',
+  pattern, onChange, list, min, readOnly, isLoading, ariaBusy, value }) {
   return (
     <div className="fr-fieldset__element">
       <div className="fr-input-group">
@@ -11,13 +12,14 @@ export default function Input({ children, id, isRequired = true, type = 'text',
           type={type}
           id={id}
           required={isRequired}
+          autoComplete={autoComplete}
           pattern={pattern}
           onChange={onChange}
           list={list}
           min={min}
           readOnly={readOnly}
           name={id}
-          value={value}
+          value={value?.trim()}
           aria-busy={ariaBusy}
           data-testid={testId}
         />
@@ -35,6 +37,7 @@ Input.propTypes = {
   children: PropTypes.node,
   id: PropTypes.string,
   isRequired: PropTypes.bool,
+  autoComplete: PropTypes.string,
   type: PropTypes.string,
   pattern: PropTypes.string,
   onChange: PropTypes.func,
diff --git a/src/views/candidature-conseiller/AddressChooser.jsx b/src/views/candidature-conseiller/AddressChooser.jsx
index 7d112f8..194357a 100644
--- a/src/views/candidature-conseiller/AddressChooser.jsx
+++ b/src/views/candidature-conseiller/AddressChooser.jsx
@@ -10,6 +10,7 @@ export default function AddressChooser() {
   return (
     <>
       <Input
+        autoComplete= "off"
         id="lieuHabitation"
         list="resultatsRecherche"
         onChange={debounce(async event => {
diff --git a/src/views/candidature-conseiller/CandidatureConseiller.jsx b/src/views/candidature-conseiller/CandidatureConseiller.jsx
index e1ca6e7..ed0f3a6 100644
--- a/src/views/candidature-conseiller/CandidatureConseiller.jsx
+++ b/src/views/candidature-conseiller/CandidatureConseiller.jsx
@@ -54,10 +54,13 @@ export default function CandidatureConseiller() {
     } else {
       const conseillerData = await buildConseillerData(formData);
       const resultatCreation = await creerCandidatureConseiller(conseillerData);
-      if (resultatCreation.status >= 400) {
+      if (resultatCreation?.status >= 400) {
         const error = await resultatCreation.json();
         setValidationError(error.message);
         window.scrollTo({ top: 0, behavior: 'smooth' });
+      } else if (!resultatCreation.status) {
+        setValidationError(resultatCreation.message);
+        window.scrollTo({ top: 0, behavior: 'smooth' });
       } else {
         navigate('/candidature-validee-conseiller');
       }
diff --git a/src/views/candidature-conseiller/CandidatureConseiller.test.jsx b/src/views/candidature-conseiller/CandidatureConseiller.test.jsx
index 961eaf5..ee73c21 100644
--- a/src/views/candidature-conseiller/CandidatureConseiller.test.jsx
+++ b/src/views/candidature-conseiller/CandidatureConseiller.test.jsx
@@ -522,7 +522,7 @@ describe('candidature conseiller', () => {
     vi.useRealTimers();
   });
 
-  it('quand je remplis complètementle formulaire avec un numéro téléphone valide, alors je suis redirigé vers la page de candidature validée', async () => {
+  it('quand je remplis complètement le formulaire avec un numéro téléphone valide, alors je suis redirigé vers la page de candidature validée', async () => {
     // GIVEN
     vi.useFakeTimers();
     vi.setSystemTime(new Date(2023, 11, 12, 13));
@@ -661,4 +661,51 @@ describe('candidature conseiller', () => {
 
     vi.useRealTimers();
   });
+
+  it('quand je remplis le formulaire et qu’une erreur se produit alors un message d’erreur s’affiche', async () => {
+    // GIVEN
+    vi.useFakeTimers();
+    vi.setSystemTime(new Date(2023, 11, 12, 13));
+
+    vi.spyOn(useApiAdmin, 'useApiAdmin').mockImplementation(() => ({
+      creerCandidatureConseiller: vi.fn().mockReturnValue({ message: 'Failed to fetch' }),
+      buildConseillerData: vi.fn(),
+    }));
+
+    render(<CandidatureConseiller />);
+    const prenom = screen.getByLabelText('Prénom *');
+    fireEvent.change(prenom, { target: { value: 'Jean' } });
+    const nom = screen.getByLabelText('Nom *');
+    fireEvent.change(nom, { target: { value: 'Dupont' } });
+    const email = screen.getByLabelText('Adresse e-mail * Format attendu : nom@domaine.fr');
+    fireEvent.change(email, { target: { value: 'jean.dupont@example.com' } });
+    const adresse = screen.getByLabelText('Votre lieu d’habitation * Saississez le nom ou le code postal de votre commune.');
+    fireEvent.change(adresse, { target: { value: '93100 Montreuil' } });
+    const telephone = screen.getByLabelText('Téléphone Format attendu : +33122334455');
+    fireEvent.change(telephone, { target: { value: '+33159590730' } });
+    const enEmploi = screen.getByRole('checkbox', { name: 'En emploi' });
+    fireEvent.click(enEmploi);
+    const oui = screen.getByRole('radio', { name: 'Oui' });
+    fireEvent.click(oui);
+    const date = screen.getByLabelText('Choisir une date');
+    fireEvent.change(date, { target: { value: dateDujour() } });
+    const _5km = screen.getByRole('radio', { name: '5 km' });
+    fireEvent.click(_5km);
+    const descriptionMotivation = screen.getByLabelText('Votre message *');
+    fireEvent.change(descriptionMotivation, { target: { value: 'je suis motivé !' } });
+
+    // WHEN
+    const envoyer = screen.getByRole('button', { name: 'Envoyer votre candidature' });
+
+    // eslint-disable-next-line testing-library/no-unnecessary-act
+    await act(() => {
+      fireEvent.click(envoyer);
+    });
+
+    // THEN
+    const contenuErreurValidation = screen.getByText('Failed to fetch', { selector: 'p' });
+    expect(contenuErreurValidation).toBeInTheDocument();
+
+    vi.useRealTimers();
+  });
 });
diff --git a/src/views/candidature-coordinateur/CandidatureCoordinateur.jsx b/src/views/candidature-coordinateur/CandidatureCoordinateur.jsx
index b754f52..b1a72b6 100644
--- a/src/views/candidature-coordinateur/CandidatureCoordinateur.jsx
+++ b/src/views/candidature-coordinateur/CandidatureCoordinateur.jsx
@@ -39,10 +39,13 @@ export default function CandidatureCoordinateur() {
     const formData = new FormData(event.currentTarget);
     const coordinateurData = await buildCoordinateurData(formData, geoLocation, codeCommune);
     const resultatCreation = await creerCandidatureCoordinateur(coordinateurData);
-    if (resultatCreation.status >= 400) {
+    if (resultatCreation?.status >= 400) {
       const error = await resultatCreation.json();
       setValidationError(error.message);
       window.scrollTo({ top: 0, behavior: 'smooth' });
+    } else if (!resultatCreation.status) {
+      setValidationError(resultatCreation.message);
+      window.scrollTo({ top: 0, behavior: 'smooth' });
     } else {
       navigate('/candidature-validee-structure');
     }
diff --git a/src/views/candidature-coordinateur/CandidatureCoordinateur.test.jsx b/src/views/candidature-coordinateur/CandidatureCoordinateur.test.jsx
index 358db4a..f166a49 100644
--- a/src/views/candidature-coordinateur/CandidatureCoordinateur.test.jsx
+++ b/src/views/candidature-coordinateur/CandidatureCoordinateur.test.jsx
@@ -3,7 +3,7 @@ import { describe, expect, it, vi } from 'vitest';
 import CandidatureCoordinateur from './CandidatureCoordinateur';
 import { textMatcher, dateDujour } from '../../../test/test-utils';
 import * as ReactRouterDom from 'react-router-dom';
-import { useApiAdmin } from '../candidature-conseiller/useApiAdmin';
+import * as useApiAdmin from '../candidature-conseiller/useApiAdmin';
 import { useEntrepriseFinder } from '../candidature-structure/useEntrepriseFinder';
 
 vi.mock('react-router-dom', () => ({
@@ -427,7 +427,7 @@ describe('candidature coordinateur', () => {
       ]
     ];
 
-    const { buildCoordinateurData } = renderHook(() => useApiAdmin()).result.current;
+    const { buildCoordinateurData } = renderHook(() => useApiAdmin.useApiAdmin()).result.current;
     const { getGeoLocationFromAddress } = renderHook(() => useEntrepriseFinder()).result.current;
 
     // //WHEN
@@ -462,5 +462,61 @@ describe('candidature coordinateur', () => {
 
     vi.useRealTimers();
   });
+
+  it('quand je remplis le formulaire et qu’une erreur se produit alors un message d’erreur s’affiche', async () => {
+    // GIVEN
+    vi.useFakeTimers();
+    vi.setSystemTime(new Date(2023, 11, 12, 13));
+
+    vi.spyOn(useApiAdmin, 'useApiAdmin').mockImplementation(() => ({
+      creerCandidatureCoordinateur: vi.fn().mockReturnValue({ message: 'Failed to fetch' }),
+      buildCoordinateurData: vi.fn(),
+    }));
+
+    render(<CandidatureCoordinateur />);
+    const siret = screen.getByLabelText('SIRET / RIDET *');
+    fireEvent.change(siret, { target: { value: '1234567890123' } });
+    const denomination = screen.getByLabelText('Dénomination *');
+    fireEvent.change(denomination, { target: { value: 'Entreprise' } });
+    const adresse = screen.getByLabelText('Adresse *');
+    fireEvent.change(adresse, { target: { value: '75007 Paris' } });
+    const typeStructure = screen.getByRole('radio', { name: 'Une commune' });
+    fireEvent.click(typeStructure);
+    const prenom = screen.getByLabelText('Prénom *');
+    fireEvent.change(prenom, { target: { value: 'Jean' } });
+    const nom = screen.getByLabelText('Nom *');
+    fireEvent.change(nom, { target: { value: 'Dupont' } });
+    const fonction = screen.getByLabelText('Fonction *');
+    fireEvent.change(fonction, { target: { value: 'Test' } });
+    const email = screen.getByLabelText('Adresse e-mail *');
+    fireEvent.change(email, { target: { value: 'jean.dupont@example.com' } });
+    const telephone = screen.getByLabelText('Téléphone *');
+    fireEvent.change(telephone, { target: { value: '+33123456789' } });
+    const identificationCandidat = screen.getByRole('radio', { name: 'Oui' });
+    fireEvent.click(identificationCandidat);
+    const typeMission = screen.getByRole('radio', { name: 'Accompagnera également des publics' });
+    fireEvent.click(typeMission);
+    const date = screen.getByLabelText('Choisir une date');
+    fireEvent.change(date, { target: { value: dateDujour() } });
+    const descriptionMotivation = screen.getByLabelText('Votre message *');
+    fireEvent.change(descriptionMotivation, { target: { value: 'je suis motivé !' } });
+    const confirmation = screen.getByRole('checkbox', { name: 'Je confirme avoir lu et pris connaissance des conditions d’engagement. *' });
+    fireEvent.click(confirmation);
+
+    // WHEN
+    const envoyer = screen.getByRole('button', { name: 'Envoyer votre candidature' });
+
+    // eslint-disable-next-line testing-library/no-unnecessary-act
+    await act(() => {
+      fireEvent.click(envoyer);
+    });
+
+
+    // THEN
+    const contenuErreurValidation = screen.getByText('Failed to fetch', { selector: 'p' });
+    expect(contenuErreurValidation).toBeInTheDocument();
+
+    vi.useRealTimers();
+  });
 });
 
diff --git a/src/views/candidature-structure/CandidatureStructure.jsx b/src/views/candidature-structure/CandidatureStructure.jsx
index 3695c26..9208e5c 100644
--- a/src/views/candidature-structure/CandidatureStructure.jsx
+++ b/src/views/candidature-structure/CandidatureStructure.jsx
@@ -40,10 +40,13 @@ export default function CandidatureStructure() {
     const formData = new FormData(event.currentTarget);
     const structureData = await buildStructureData(formData, geoLocation, codeCommune);
     const resultatCreation = await creerCandidatureStructure(structureData);
-    if (resultatCreation.status >= 400) {
+    if (resultatCreation?.status >= 400) {
       const error = await resultatCreation.json();
       setValidationError(error.message);
       window.scrollTo({ top: 0, behavior: 'smooth' });
+    } else if (!resultatCreation.status) {
+      setValidationError(resultatCreation.message);
+      window.scrollTo({ top: 0, behavior: 'smooth' });
     } else {
       navigate('/candidature-validee-structure');
     }
diff --git a/src/views/candidature-structure/CandidatureStructure.test.jsx b/src/views/candidature-structure/CandidatureStructure.test.jsx
index c890545..de05cdd 100644
--- a/src/views/candidature-structure/CandidatureStructure.test.jsx
+++ b/src/views/candidature-structure/CandidatureStructure.test.jsx
@@ -3,7 +3,7 @@ import { describe, expect, it, vi } from 'vitest';
 import CandidatureStructure from './CandidatureStructure';
 import { textMatcher, dateDujour } from '../../../test/test-utils';
 import * as ReactRouterDom from 'react-router-dom';
-import { useApiAdmin } from '../candidature-conseiller/useApiAdmin';
+import * as useApiAdmin from '../candidature-conseiller/useApiAdmin';
 import { useEntrepriseFinder } from './useEntrepriseFinder';
 
 vi.mock('react-router-dom', () => ({
@@ -519,7 +519,7 @@ describe('candidature structure', () => {
       ]
     ];
 
-    const { buildStructureData } = renderHook(() => useApiAdmin()).result.current;
+    const { buildStructureData } = renderHook(() => useApiAdmin.useApiAdmin()).result.current;
     const { getGeoLocationFromAddress } = renderHook(() => useEntrepriseFinder()).result.current;
 
     // //WHEN
@@ -555,5 +555,61 @@ describe('candidature structure', () => {
 
     vi.useRealTimers();
   });
+
+  it('quand je remplis le formulaire et qu’une erreur se produit alors un message d’erreur s’affiche', async () => {
+    // GIVEN
+    vi.useFakeTimers();
+    vi.setSystemTime(new Date(2023, 11, 12, 13));
+
+    vi.spyOn(useApiAdmin, 'useApiAdmin').mockImplementation(() => ({
+      creerCandidatureStructure: vi.fn().mockReturnValue({ message: 'Failed to fetch' }),
+      buildStructureData: vi.fn(),
+    }));
+
+    render(<CandidatureStructure />);
+    const siret = screen.getByLabelText('SIRET / RIDET *');
+    fireEvent.change(siret, { target: { value: '1234567890123' } });
+    const denomination = screen.getByLabelText('Dénomination *');
+    fireEvent.change(denomination, { target: { value: 'Entreprise' } });
+    const adresse = screen.getByLabelText('Adresse *');
+    fireEvent.change(adresse, { target: { value: '75007 Paris' } });
+    const typeStructure = screen.getByRole('radio', { name: 'Une commune' });
+    fireEvent.click(typeStructure);
+    const prenom = screen.getByLabelText('Prénom *');
+    fireEvent.change(prenom, { target: { value: 'Jean' } });
+    const nom = screen.getByLabelText('Nom *');
+    fireEvent.change(nom, { target: { value: 'Dupont' } });
+    const fonction = screen.getByLabelText('Fonction *');
+    fireEvent.change(fonction, { target: { value: 'Test' } });
+    const email = screen.getByLabelText('Adresse e-mail *');
+    fireEvent.change(email, { target: { value: 'jean.dupont@example.com' } });
+    const telephone = screen.getByLabelText('Téléphone *');
+    fireEvent.change(telephone, { target: { value: '+33123456789' } });
+    const nombre = screen.getByLabelText('Combien de conseillers numériques souhaitez-vous accueillir ?*');
+    fireEvent.change(nombre, { target: { value: 1 } });
+    const identificationCandidat = screen.getByRole('radio', { name: 'Oui' });
+    fireEvent.click(identificationCandidat);
+    const date = screen.getByLabelText('Choisir une date');
+    fireEvent.change(date, { target: { value: dateDujour() } });
+    const descriptionMotivation = screen.getByLabelText('Votre message *');
+    fireEvent.change(descriptionMotivation, { target: { value: 'je suis motivé !' } });
+    const confirmation = screen.getByRole('checkbox', { name: 'Je confirme avoir lu et pris connaissance des conditions d’engagement. *' });
+    fireEvent.click(confirmation);
+
+    // WHEN
+    const envoyer = screen.getByRole('button', { name: 'Envoyer votre candidature' });
+
+    // eslint-disable-next-line testing-library/no-unnecessary-act
+    await act(() => {
+      fireEvent.click(envoyer);
+    });
+
+
+    // THEN
+    const contenuErreurValidation = screen.getByText('Failed to fetch', { selector: 'p' });
+    expect(contenuErreurValidation).toBeInTheDocument();
+
+    vi.useRealTimers();
+  });
 });