# IRPCPropertyDefsAdmin.GetLastUsedValue

Location: [gRPC API](https://developer.m-files.com/APIs/gRPC-API/index.md) > [Administration API](https://developer.m-files.com/APIs/gRPC-API/admin/index.md) > [Property definition and class administration](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCPropertyDefsAdmin/index.md)

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

Badges: `Administration API / specialized` `admin` `session` `idempotent`

Gets the last number used by an automatic numbering property.

- **Service:** [Property definition and class administration](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCPropertyDefsAdmin/index.md) `MFiles.IRPCPropertyDefsAdmin`
- **gRPC method:** `/MFiles.IRPCPropertyDefsAdmin/GetLastUsedValue`
- **HTTP (mf-http-grpc):** `POST /grpc/v1/get-last-used-value`
- **Request:** [`GetLastUsedValueRequest`](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCPropertyDefsAdmin/GetLastUsedValue/index.md#request)
- **Response:** [`GetLastUsedValueResponse`](https://developer.m-files.com/APIs/gRPC-API/Reference/MFiles.IRPCPropertyDefsAdmin/GetLastUsedValue/index.md#response)
- **Book and level:** Administration API, specialized
- **Kind:** admin
- **Session:** Required: the session ID from LogIn in the mfiles-session-id-bin metadata.
- **Idempotent:** yes
- **Returns metadata structure version:** no
- **Streaming:** none (unary)

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## Remarks

- Requires `read_all_metadata_structure`.
- For a property definition without automatic numbering the value is empty (for example property 0).

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## Request: GetLastUsedValueRequest

> Nested message fields are expanded to depth 3; follow a type link for deeper levels and for the type's own page.

| Field | Type | Description |
|---|---|---|
| `property_def` | `int32` | The PropertyDef to get. |

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## Response: GetLastUsedValueResponse

> Nested message fields are expanded to depth 3; follow a type link for deeper levels and for the type's own page.

| Field | Type | Description |
|---|---|---|
| `last_used_value` | [`TypedValue`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.TypedValue/index.md) | Receives the result. |
| `last_used_value.is_null_value` | `bool` | True if the value is empty. `data` is then unset. |
| `last_used_value.type` | [`Datatype`](https://developer.m-files.com/APIs/gRPC-API/Reference/Enums/MFiles.Datatype/index.md) | The data type of the value. |
| `last_used_value.data` | [`TypedValueUnion`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.TypedValueUnion/index.md) | The value, in the member that matches `type`. Unset for an empty value. |
| `last_used_value.data.text` | `string` (oneof data) | The value of `DATATYPE_TEXT`. |
| `last_used_value.data.integer` | `int32` (oneof data) | The value of `DATATYPE_INTEGER`. |
| `last_used_value.data.real_number` | `double` (oneof data) | The value of `DATATYPE_REAL_NUMBER`. |
| `last_used_value.data.decimal_number` | `string` (oneof data) | Fixed precision number. |
| `last_used_value.data.date` | [`google.protobuf.Timestamp`](https://protobuf.dev/reference/protobuf/google.protobuf/#timestamp) (oneof data) | The value of `DATATYPE_DATE`: midnight UTC of the date. |
| `last_used_value.data.time` | [`google.protobuf.Timestamp`](https://protobuf.dev/reference/protobuf/google.protobuf/#timestamp) (oneof data) | Time. |
| `last_used_value.data.timestamp` | [`google.protobuf.Timestamp`](https://protobuf.dev/reference/protobuf/google.protobuf/#timestamp) (oneof data) | The value of `DATATYPE_TIMESTAMP`, in UTC. |
| `last_used_value.data.boolean` | `bool` (oneof data) | The value of `DATATYPE_BOOLEAN`. |
| `last_used_value.data.lookup` | [`Lookup`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.Lookup/index.md) (oneof data) | The value of `DATATYPE_LOOKUP`: one value list item or object. |
| `last_used_value.data.multi_select_lookup` | [`MultiSelectLookup`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.MultiSelectLookup/index.md) (oneof data) | The value of `DATATYPE_MULTI_SELECT_LOOKUP`: any number of value list items or objects. |
| `last_used_value.data.integer64` | `int64` (oneof data) | Integer (8 bytes). |
| `last_used_value.data.filetime` | [`google.protobuf.Timestamp`](https://protobuf.dev/reference/protobuf/google.protobuf/#timestamp) (oneof data) | FILETIME (64-bit integer). |
| `last_used_value.data.multi_line_text` | `string` (oneof data) | The value of `DATATYPE_MULTI_LINE_TEXT`. |
| `last_used_value.data.acl` | [`AccessControlList`](https://developer.m-files.com/APIs/gRPC-API/Reference/Messages/MFiles.AccessControlList/index.md) (oneof data) | Access Control List. |