# Returns the reason code with the given identifier.

`GET /inventory/reason-codes/{id}`

Group: Inventory › Reason Codes · Operation ID: `getReasonCode`

The response has the same fields as POST inventory/reason-codes/search. The collection GET inventory/reason-codes returns the same fields except documentTypes, which it cannot express. To look a reason code up by its code instead of its id, filter the collection GET inventory/reason-codes on code.

[Open in the interactive reference](https://docs.api.lensing.ai/?op=getReasonCode)

## Parameters

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `Api-Version` | header | `"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 for the reason code to return. |

## Response

`200` Success

Under `data` (getReasonCodeOutput):

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | string | yes | The unique identifier for the reason code. |
| `code` | string | yes | The business code of the reason code, for example 'DAMAGE'. It is unique within the tenant. |
| `description` | string | no | A free-form description of what the reason code means. Absent when none was given. |
| `isActive` | boolean | no | Whether the reason code can be selected on new documents. When false, existing documents keep it and new ones cannot select it. |
| `requiresApproval` | boolean | no | Whether documents using this reason code require approval before they take effect. |
| `documentTypes` | array of string, one of `"InventoryIncrease"`, `"InventoryDecrease"`, `"SalesReturn"`, `"PurchaseReturn"`, `"Disposal"` | yes | The document types this reason code may be selected on, in a stable order. An empty array when it is linked to none. It is not returned by the collection GET inventory/reason-codes. |
| `lastModifiedDate` | string (date-time) | no | The date and time the reason code record last changed, in UTC. Format YYYY-MM-DDTHH:mm:ss.sssZ. Adding or removing a document type does not change it. |

## Errors

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

## Statuses

- `400` — Invalid request or business failure. Codes: NOT_FOUND
- `401` — Missing or invalid access token
- `403` — Not authorized
- `404` — Not found
- `429` — Too many requests
- `500` — Internal server error