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73 lines
3.3 KiB
Plaintext
73 lines
3.3 KiB
Plaintext
---
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title: Contraintes d'unicité
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description: Comment Twenty impose l'unicité des données lors de l'importation.
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---
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import { VimeoEmbed } from '/snippets/vimeo-embed.mdx';
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## Vue d'ensemble
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Twenty impose l'unicité sur certains champs afin d'éviter les doublons et d'assurer l'intégrité des données. Comprendre ces contraintes est essentiel pour des importations réussies.
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## Champs uniques par défaut
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| Objet | Champs uniques |
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| ------------------------ | ---------------------------- |
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| **Personnes** | `id`, `email` |
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| **Entreprises** | `id`, `domain` |
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| **Objets personnalisés** | `id` uniquement (par défaut) |
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<Note>Le champ `id` est l'identifiant interne de Twenty, généré automatiquement pour chaque enregistrement. Il utilise le format UUID (par exemple, `c776ee49-f608-4a77-8cc8-6fe96ae1e43f`).</Note>
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## Champs uniques personnalisés
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Vous pouvez définir des champs uniques supplémentaires sous **Paramètres → Modèle de données** :
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1. Allez dans **Paramètres → Modèle de données**
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2. Sélectionnez l'objet
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3. Cliquez sur un champ
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4. Activez **Unique** dans les paramètres du champ
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### Cas d'utilisation pour les champs uniques personnalisés
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* **ID externes** : Stockez les ID provenant d'autres systèmes (Salesforce ID, HubSpot ID)
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* **Identifiants métier** : Numéros d'employé, codes client
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* **Coordonnées alternatives** : Profil LinkedIn, numéro de téléphone
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<Note>Le nom de champ `id` est réservé à l'ID interne de Twenty. Utilisez un nom différent comme `externalId` ou `legacyId` pour les identifiants externes.</Note>
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## Comportement de l'importation
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### Création de nouveaux enregistrements
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Si la valeur d'un champ unique n'existe pas, un nouvel enregistrement est créé.
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### Mise à jour des enregistrements existants
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Si la valeur d'un champ unique correspond à un enregistrement existant, cet enregistrement est **mis à jour** avec les nouvelles données.
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<Warning>Pour **mettre à jour des enregistrements existants**, il est recommandé de **ne faire correspondre qu'un seul champ unique**.</Warning>
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### Enregistrements supprimés de manière logique
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<Warning>
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**Les enregistrements supprimés de manière logique comptent pour l'unicité.**
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Les enregistrements supprimés de manière logique (visibles sous Menu Commandes → Voir les enregistrements supprimés) sont inclus dans les vérifications d'unicité. Si vous importez un enregistrement avec la même valeur unique qu'un enregistrement supprimé, l'enregistrement supprimé sera **restauré** avec les nouvelles données.
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</Warning>
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## Détection des doublons lors de l'importation
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Pendant la phase de validation :
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* Les doublons dans votre fichier sont surlignés en jaune
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* Vous pouvez modifier ou supprimer les lignes en double depuis l'interface avant de lancer l'importation
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<VimeoEmbed videoId="1145246326" title="Démonstration vidéo" />
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## Meilleures pratiques
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1. **Supprimez les doublons** de votre fichier avant l'importation
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2. **Vérifiez les enregistrements existants** dans Twenty avant l'importation
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3. **Utilisez des ID externes** lors de la migration depuis d'autres systèmes
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4. **Incluez des champs uniques** si vous souhaitez mettre à jour des enregistrements existants
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