# StateTransitionDecl

Location: [gRPC API](https://developer.m-files.com/APIs/gRPC-API/index.md) > [Reference](https://developer.m-files.com/APIs/gRPC-API/Reference/index.md) > [Messages](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/index.md)

HTML version: https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.StateTransitionDecl/

One state transition in a workflow.

- **Full name:** `MFiles.StateTransitionDecl`
- **Proto file:** [`mfiles/structs.proto`](https://developer.m-files.com/APIs/gRPC-API/downloads/proto/mfiles/structs.proto)

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## Fields

| Field | Type | Number | Description |
|---|---|---|---|
| <a id="f-base_info"></a>`base_info` | [`ValueListItemDecl`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.ValueListItemDecl/index.md) | 1 | Value list item representing this element. |
| <a id="f-transition"></a>`transition` | [`StateTransition`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.StateTransition/index.md) | 2 | Other information on the state transition. |
| <a id="f-trigger_code"></a>`trigger_code` | [`MetadataStructureResourceRef`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.MetadataStructureResourceRef/index.md) | 3 | The trigger VBScript resource reference. |

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## Used in fields

- [`WorkflowDecl.transitions`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.WorkflowDecl/index.md#f-transitions): The state transitions of this workflow.