# Retrieve a unit of measure

Operation ID: `getUnitOfMeasure`

Group: Inventory › Units of Measure

[Open in the interactive reference](https://docs.api.lensing.ai/lensing/v1/endpoints/getUnitOfMeasure)

`GET /inventory/unit-of-measures/{id}`

Read-only: Reads and returns; changes nothing.

Retrieves a unit of measure. Use the unit of measure's id, not its unitCode.

The response gives the unit of measure's code and display name.

GET inventory/unit-of-measures and POST inventory/unit-of-measures/search return the same fields. To look up a unit of measure by its code, filter GET inventory/unit-of-measures on unitCode.

## Parameters

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `Api-Version` | header | string · v1 | yes | The API version this request targets, named by its public identifier. Required on every request; omitting it, or naming a version this company does not have, is answered with 400. This document describes version `v1`. |
| `id` | path | string | yes | The unique identifier of the unit of measure you want to retrieve. |

## Response

`200` Success

Under `data` (getUnitOfMeasureOutput):

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | string | yes | The unique identifier for the unit of measure. Example: `"3b7d5e9c-1a24-4f80-9c6d-2e8f70b13a45"`. |
| `unitCode` | string | yes | The short code of the unit of measure, for example 'KG'. It is unique within the tenant. Example: `"KG"`. |
| `unitName` | string | yes | The display name of the unit of measure, for example 'Kilogram'. Example: `"Kilogram"`. |
| `lastModifiedDate` | date-time | no | The date and time the unit of measure record last changed, in UTC. Format YYYY-MM-DDTHH:mm:ss.sssZ. Example: `"2026-05-12T09:30:00.000Z"`. |

```json
{
  "data": {
    "id": "3b7d5e9c-1a24-4f80-9c6d-2e8f70b13a45",
    "unitCode": "KG",
    "unitName": "Kilogram",
    "lastModifiedDate": "2026-05-12T09:30:00.000Z"
  },
  "diagnostics": [
    {
      "code": "<code>",
      "message": "<message>",
      "severity": "error",
      "path": [
        "<path>"
      ],
      "details": "<details>"
    }
  ]
}
```

## Errors

| Code | Status |
| --- | --- |
| `NOT_FOUND` | 400 |

## Statuses

- `400` — Invalid request or business failure. Codes: NOT_FOUND
- `401` — The request carries no valid access token.
- `403` — Not authorized
- `404` — Not found
- `429` — Too many requests from this client address. The response has no body and no `Retry-After` header.
- `500` — Internal server error