**Source URL:** https://limited.veevavault.dev/medical/mdl/component-types/userdefinedservice

# Userdefinedservice

**Class:** `code`

Allow users to wrap reusable logic into a service that can be used by other Vault Java SDK code, such as triggers, actions, or user-defined classes.

Learn more about [user-defined services](/vault-sdk/shared-code/uds).

| Attribute | Metadata | Description |
| --- | --- | --- |
| `label` | Type: String Max length: 60 | UI-friendly string in the Vault's base language. |
| `active` | Type: Boolean | Indicates whether the component is active. |
| `checksum` | Type: String Max length: 1500 | Used to check data for errors. |
| `interface` | Type: String Max length: 1500 | The name of the user-defined service extension interface that a user-defined service class implements, or blank if the user-defined service is an extension interface. |
| `source_code` | Type: SdkCode Max length: 1048576 | The source of this user defined service and code used to create and edit metadata. *Custom* means this user defined service was developed with the Vault Java SDK. |

### Supported Operations

| Operation | Support |
| --- | --- |
| Create | No |
| Recreate | No |
| Alter | No |
| Drop | No |
| Rename | No |
| Describe | No |
| Generate Recreate | No |
| Queryable | Yes |

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