--- title: FAQ del modello dati description: Frequently asked questions about Twenty's data model. --- ## Gestione degli Oggetti Yes, custom objects can be deleted. You can also deactivate them first, which hides the object and its data from the interface while preserving the data. No, standard objects cannot be deleted. You can only deactivate them, which hides them from the interface but preserves the data. You can create as many custom objects and fields as you need — the price doesn't change. You can rename the label of standard objects (People, Companies, Opportunities), but not their API names. The API names are fixed for consistency across all Twenty workspaces. Yes, you can change the icon for both standard and custom objects in **Settings → Data Model**. Non ancora. L'ordinamento degli oggetti nella navigazione è attualmente fisso, ma questa funzionalità è pianificata per una futura versione. Tutti gli oggetti attivi appaiono nella navigazione. Puoi disattivare gli oggetti di cui non hai bisogno in **Impostazioni → Modello dati**. ## Funzionalità dei Campi No, field types cannot be changed after creation. If you need a different type, create a new field with the correct type, migrate your data, then deactivate the old field. La nostra API GraphQL utilizza entrambe le forme per operazioni diverse: * `createPerson` (singolare) per azioni su singoli record * `createPeople` (plurale) per operazioni di massa Questo crea limitazioni quando le forme singolari e plurali sono le stesse, ma migliora l'esperienza dello sviluppatore. Certi nomi di campi come `Tipo` o `Applicazione` sono riservati per uso di sistema. Scegli nomi alternativi come `Categoria` o `Classificazione`. * The field is hidden from the interface * Existing data is preserved * You can still access the field via API * Existing relations remain but you can't create new ones * You can reactivate the field later Currently, you cannot make custom fields required. All fields accept empty values. You can use workflows to enforce required fields by sending alerts or blocking actions when fields are empty. * **Unique**: No two records can have the same value in this field * **Required**: The field must have a value (not currently supported for custom fields) I campi di formula arriveranno nel **Q1 2026**. Nel frattempo, puoi utilizzare i Workflows per calcolare e aggiornare automaticamente i valori dei campi. I campi nidificati arriveranno nel **Q1 2026**. Attualmente, puoi utilizzare i Workflows per importare i valori dei campi da oggetti correlati. Ad esempio, per visualizzare il settore di un'azienda sul record di una Persona, crea un campo personalizzato su Persone e utilizza un Workflow per sincronizzare il valore. Il riordino dei campi sarà disponibile con layout personalizzati nel **Q4 2025**. Currently, fields appear in alphabetical order. ## Relazioni Sì! Self-referencing relations are supported and recommended for use cases like account hierarchies. For example, create a relation from Companies to Companies to track parent/child accounts. Many-to-many relationships are coming in **H1 2026**. Currently, create an intermediate object with two one-to-many relationships as a workaround. For example, to link People and Projects (many-to-many), create a "Project Assignments" object with: * A relation to People (many assignments → one person) * A relation to Projects (many assignments → one project) These allow one object to relate to multiple different object types through a single field. For example, Notes can be attached to People AND Companies AND Opportunities simultaneously. Each Note links to one Person, one Company, and one Opportunity at the same time. Learn more in [Relation Fields](/l/it/user-guide/data-model/capabilities/relation-fields). Yes, you can create multiple relations between the same two objects. For example, a Company could have both a "Primary Contact" and "Billing Contact" relation to People. When you delete a record, the relation link is removed from the related records. The related records themselves are not deleted. While technically possible, circular relations (A → B → C → A) should be avoided as they can cause confusion and potential performance issues. ## Accesso e Permessi Go to **Settings → Data Model** to view and edit all your objects and fields. Contatta l'amministratore del tuo workspace. L'accesso al modello dati è solitamente riservato solo agli amministratori. ## Data Management There's no hard limit on record counts. However, very large datasets may impact performance in some views. Use filters and views to manage large datasets effectively. Yes, you can import CSV data into any object, including custom objects. The import process supports field mapping for custom fields. See [How to Prepare Your CSV Files](/l/it/user-guide/data-migration/how-tos/prepare-your-csv-files). Currently, there's no built-in export for data model configuration. Contact support if you need to migrate your data model between workspaces. ## Need More Help? Check our [Implementation Services](/l/it/user-guide/getting-started/capabilities/implementation-services) for help with complex data model design.