**Source URL:** https://limited.veevavault.dev/safety/mdl/component-types/recordmergeeventhandler

# Recordmergeeventhandler

**Class:** `code`

Record merge event handlers contain custom logic to execute as a merge starts or after the merge finishes.

Learn about [Record Merge Event Handlers in Vault Help](https://platform.veevavault.help/en/lr/45776/#record_merge).

| 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. |
| `object` | Type: Component **Required** | The object this record merge event handler is associated to, for example, `product__v`. |
| `source_code` | Type: SdkCode Max length: 1048576 | The source of this record merge event handler and code used. *Custom* means this record merge event handler 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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