{"id":10295,"date":"2022-03-04T03:08:09","date_gmt":"2022-03-04T10:08:09","guid":{"rendered":"https:\/\/csop.cirasync.com\/non-classifiee\/pourquoi-devrions-nous-migrer-les-boites-aux-lettres-dexchange-server-vers-office-365\/"},"modified":"2026-03-24T22:43:56","modified_gmt":"2026-03-25T03:43:56","slug":"pourquoi-devrions-nous-migrer-les-boites-aux-lettres-dexchange-server-vers-office-365","status":"publish","type":"post","link":"https:\/\/csop.cirasync.com\/fr\/blog-fr\/pourquoi-devrions-nous-migrer-les-boites-aux-lettres-dexchange-server-vers-office-365\/","title":{"rendered":"Pourquoi devrions-nous migrer les bo\u00eetes aux lettres d&rsquo;Exchange Server vers Office 365"},"content":{"rendered":"<h3><strong>Synchroniser la GAL Office 365 avec iPhone, Android et d&rsquo;autres smartphones<\/strong><\/h3>\n<p>Vous savez peut-\u00eatre d\u00e9j\u00e0 que vos utilisateurs d&rsquo;iPhone et d&rsquo;Android seront beaucoup plus productifs s&rsquo;ils ont une copie en cache de la GAL (liste d&rsquo;adresses globale) dans leurs contacts.<\/p>\n<p>Si vous n&rsquo;\u00eates pas familier avec le gestionnaire de contacts unifi\u00e9, itrezzo, et que vous souhaitez synchroniser la liste d&rsquo;adresses globale, consultez les articles r\u00e9pertori\u00e9s ci-dessous :<\/p>\n<ul>\n<li><a href=\"https:\/\/cirasync.com\/support\/office-365\/syncing-gal-to-outlook-and-exchange-devices\/\">Synchronisation de la liste d&rsquo;adresses globale avec Outlook ou des appareils compatibles Exchange sur CiraSync<\/a><\/li>\n<li><a href=\"http:\/\/blog.itrezzo.com\/2014\/02\/how-to-sync-gal-to-iphone-Android.html\">Meilleures pratiques pour synchroniser la GAL sur un smartphone<\/a><\/li>\n<\/ul>\n<h2>Configuration d&rsquo;CiraSync On-Prem Contact Management avec Azure AD<\/h2>\n<p>Nous avons r\u00e9cemment travaill\u00e9 avec un client qui avait 3000 bo\u00eetes aux lettres dans sa GAL Office 365. The Unified Contact Manager, <a href=\"\/unified-contact-management-solution\/\" target=\"_blank\" rel=\"noopener\">notre outil de gestion unifi\u00e9e des contacts<\/a>, utilisait les services Web Exchange et la synchronisation de la liste d&rsquo;adresses globale \u00e9chouait lamentablement.<\/p>\n<p>Nous voulions revenir \u00e0 LDAP car ils ex\u00e9cutaient DirSync. Malheureusement, trois domaines diff\u00e9rents provenant d&#8217;emplacements diff\u00e9rents se synchronisaient avec Office 365. Chacun d&rsquo;eux avait une copie unique de sa GAL locale. Office 365 disposait de la seule copie ma\u00eetresse compl\u00e8te de toutes les entr\u00e9es de la GAL.<\/p>\n<p>C&rsquo;est \u00e0 ce moment-l\u00e0 que nous avons bascul\u00e9 leur type d&rsquo;acc\u00e8s \u00e0 la GAL vers Azure AD. Les choses ont parfaitement fonctionn\u00e9 par la suite.<\/p>\n<p>Si vous souhaitez synchroniser la GAL Office 365 avec un smartphone, cet article explique comment et pourquoi vous devrez peut-\u00eatre utiliser Azure AD.<br \/>\n<img decoding=\"async\" title=\"Synchroniser la GAL avec Outlook \u00e0 l'aide d'Azure AD\" src=\"\/wp-content\/uploads\/2021\/07\/Sync-Office365-GAL-Outlook-1.png\" alt=\"Graph API\" \/><\/p>\n<h2>Types de listes d&rsquo;adresses globales Office 365<\/h2>\n<p>L&rsquo;image ci-dessus montre trois fa\u00e7ons de cr\u00e9er une liste de contacts \u00e0 l&rsquo;aide de la GAL en utilisant le <a href=\"https:\/\/csop.cirasync.com\/solutions\/unified-contact-management-solution\/\">gestionnaire de contacts unifi\u00e9s<\/a>, itrezzo.<\/p>\n<ol>\n<li>Si vous avez DirSync sur on-premise AD, vous pouvez configurer LDAP.<\/li>\n<li>Exchange Web Services (EWS) est la m\u00e9thode par d\u00e9faut pour synchroniser la liste d&rsquo;adresses globale Office 365.<\/li>\n<li>Pour une GAL Office 365 avec plus de quelques centaines d&rsquo;utilisateurs, une solution id\u00e9ale consiste \u00e0 utiliser Azure Active Directory. Microsoft fournit un acc\u00e8s \u00e0 <a href=\"https:\/\/msdn.microsoft.com\/en-us\/library\/azure\/hh974476.aspx\">Azure AD via l&rsquo;API Graph<\/a>.<\/li>\n<\/ol>\n<h2>Configuration du tenant Office 365 pour utiliser Azure AD<\/h2>\n<p>L&rsquo;utilisation du connecteur de l&rsquo;API Graph n\u00e9cessite quelques \u00e9tapes suppl\u00e9mentaires. La premi\u00e8re exigence consiste \u00e0 accorder \u00e0 CiraSync On-Prem Unified Contact Manager les autorisations n\u00e9cessaires pour utiliser Azure Active Directory. Si vous ne savez pas comment proc\u00e9der, utilisez la proc\u00e9dure d\u00e9taill\u00e9e dans <a href=\"http:\/\/blog.itrezzo.com\/2015\/07\/configure-azure-ad-and-office-365-for.html\">cet article<\/a>.<\/p>\n<p>Cette proc\u00e9dure vous permet d&rsquo;enregistrer l&rsquo;<strong>ID Client<\/strong> et l&rsquo;<strong>ID Tenant<\/strong> dans le Bloc-notes. Vous en aurez besoin ci-dessous.<\/p>\n<p>Une fois les autorisations d&rsquo;Azure AD activ\u00e9es, ouvrez l&rsquo;Administrateur Web CiraSync On-Prem puis ouvrez le menu Global Configuration. Choisissez <strong>Global Address List<\/strong>. S\u00e9lectionnez <strong>Graph API<\/strong> et remplissez les informations de votre organisation. Un exemple est d\u00e9montr\u00e9 sur l&rsquo;image ci-dessous.<\/p>\n<p>Copier et collez l&rsquo;ID Client dans <strong>Client ID<\/strong> en bas des param\u00e8tres de l&rsquo;API Graph.<\/p>\n<p>Le nom du Tenant doit correspondre au nom de domaine Internet principal (primary internet domain).<br \/>\n<img decoding=\"async\" title=\"Fa\u00e7ons de synchroniser la GAL Office 365 sur un smartphone\" src=\"\/wp-content\/uploads\/2021\/07\/Sync-Office365-GAL-Outlook-2.png\" alt=\"Azure AD, LDAP, EWS\" \/><br \/>\nVous devriez \u00e9galement avoir l&rsquo;ID du tenant dans le Bloc-notes. Collez-le dans <em>Tenant ID<\/em> de l&rsquo;API Graph comme le montre l&rsquo;image ci-dessus.<\/p>\n<p>Les identifiants de connexion d&rsquo;un Administrateur de Tenant doivent \u00eatre utilis\u00e9s. En r\u00e8gle g\u00e9n\u00e9rale, la bo\u00eete aux lettres du service CiraSync On-Prem peut ne pas disposer des autorisations d&rsquo;administrateur du tenant.<\/p>\n<p>Une fois que vous avez enregistr\u00e9 les nouvelles informations d&rsquo;identification, red\u00e9marrez la platform CiraSync On-Prem ECO.<\/p>\n<p>Sous Active Directory, vous devriez maintenant voir la GAL tel qu&rsquo;elle appara\u00eet sur Outlook sur Office 365.<br \/>\n<img decoding=\"async\" title=\"Test d'Azure AD pour synchroniser la GAL Office 365 sur un smartphone\" src=\"\/wp-content\/uploads\/2021\/07\/Sync-Office365-GAL-Outlook-3.png\" \/><\/p>\n<p>Vous devrez peut-\u00eatre cliquer sur l&rsquo;ic\u00f4ne d&rsquo;engrenage dans le coin sup\u00e9rieur droit de la grille pour actualiser Active Directory.<\/p>\n<p>Vous pouvez \u00e9galement cr\u00e9er une collection. Lorsque vous essayez de rechercher la liste d&rsquo;adresses globale pour ajouter des membres \u00e0 la collection, elle utilisera d\u00e9sormais Azure AD. Si cela \u00e9choue, Azure AD n&rsquo;est donc pas correctement configur\u00e9.<\/p>\n<p>Pour diagnostiquer les pannes, ouvrez les journaux (logs) du jour de la semaine en cours. Faites d\u00e9filer jusqu&rsquo;au bas du journal ECO. Il contiendra des messages d&rsquo;erreur. Recherchez l&rsquo;erreur Azure. Si vous ne parvenez pas \u00e0 r\u00e9soudre ce probl\u00e8me par vous-m\u00eame, n&rsquo;h\u00e9sitez pas \u00e0 <a href=\"https:\/\/csop.cirasync.com\/support\/tech-support-request\/\" target=\"_blank\" rel=\"noopener\">contacter l&rsquo;assistance d&rsquo;itrezzo<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Synchroniser la GAL Office 365 avec iPhone, Android et d&rsquo;autres smartphones Vous savez peut-\u00eatre d\u00e9j\u00e0 que vos utilisateurs d&rsquo;iPhone et d&rsquo;Android seront beaucoup plus productifs s&rsquo;ils ont une copie en cache de la GAL (liste d&rsquo;adresses globale) dans leurs contacts. Si vous n&rsquo;\u00eates pas familier avec le gestionnaire de contacts unifi\u00e9, itrezzo, et que vous [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":9720,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"categories":[1123],"tags":[1178,1148,1149],"ppma_author":[1188],"class_list":["post-10295","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-fr","tag-migrez-exchange","tag-office-365-fr","tag-synchronisation-de-la-gal"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Migrer les bo\u00eetes aux lettres Exchange Server vers Office 365<\/title>\n<meta name=\"description\" content=\"Pourquoi migrer les bo\u00eetes aux 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