---
title: patch-an-existing-experimentation-item
product: vercel
url: /docs/rest-api/marketplace/patch-an-existing-experimentation-item
canonical_url: "https://vercel.com/docs/rest-api/marketplace/patch-an-existing-experimentation-item"
last_updated: 2026-09-15
type: reference
prerequisites:
  []
related:
  - /docs/rest-api
summary: Learn about patch-an-existing-experimentation-item on Vercel.
install_vercel_plugin: npx plugins add vercel/vercel-plugin
---

# Patch an existing experimentation item

```http
PATCH /v1/installations/{integrationConfigurationId}/resources/{resourceId}/experimentation/items/{itemId}
```

Patch an existing experimentation item

## Authentication

**bearerToken**: HTTP bearer

## Path parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `integrationConfigurationId` | string | Yes |  |
| `resourceId` | string | Yes |  |
| `itemId` | string | Yes |  |


## Request body

Required: No

Content-Type: `application/json`

```json
{
  "type": "object",
  "required": [
    "slug",
    "origin"
  ],
  "properties": {
    "slug": {
      "type": "string",
      "maxLength": 1024
    },
    "origin": {
      "type": "string",
      "maxLength": 2048
    },
    "name": {
      "type": "string",
      "maxLength": 1024
    },
    "category": {
      "type": "string",
      "enum": [
        "experiment",
        "flag"
      ]
    },
    "description": {
      "type": "string",
      "maxLength": 1024
    },
    "isArchived": {
      "type": "boolean"
    },
    "createdAt": {
      "type": "number"
    },
    "updatedAt": {
      "type": "number"
    }
  }
}
```

## Example request

### TypeScript

```typescript
const response = await fetch('https://api.vercel.com/v1/installations/integrationConfigurationId/resources/resourceId/experimentation/items/itemId', {
  method: 'PATCH',
  headers: {
    'Authorization': 'Bearer YOUR_ACCESS_TOKEN',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "slug": "string",
    "origin": "string",
    "name": "Example Name",
    "category": "experiment",
    "description": "string",
    "isArchived": "true",
    "createdAt": "123",
    "updatedAt": "123"
  }),
});

const data = await response.json();
console.log(data);
```

### Next.js

```typescript
'use server';

export async function callEndpoint() {
  const response = await fetch('https://api.vercel.com/v1/installations/integrationConfigurationId/resources/resourceId/experimentation/items/itemId', {
    method: 'PATCH',
    headers: {
      'Authorization': `Bearer ${process.env.VERCEL_ACCESS_TOKEN}`,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      "slug": "string",
      "origin": "string",
      "name": "Example Name",
      "category": "experiment",
      "description": "string",
      "isArchived": "true",
      "createdAt": "123",
      "updatedAt": "123"
    }),
    next: { revalidate: 3600 }
  });

  if (!response.ok) {
    throw new Error('Request failed');
  }

  return response.json();
}
```

### cURL

```bash
curl -X PATCH 'https://api.vercel.com/v1/installations/integrationConfigurationId/resources/resourceId/experimentation/items/itemId' \
  -H 'Authorization: Bearer YOUR_ACCESS_TOKEN' \
  -H 'Content-Type: application/json' \
  -d "{
    \"slug\": \"string\",
    \"origin\": \"string\",
    \"name\": \"Example Name\",
    \"category\": \"experiment\",
    \"description\": \"string\",
    \"isArchived\": \"true\",
    \"createdAt\": \"123\",
    \"updatedAt\": \"123\"
  }"
```

## Responses

### 204: The item was updated

### 400: One of the provided values in the request body is invalid.
One of the provided values in the request query is invalid.

### 401: The request is not authorized.

### 403: You do not have permission to access this resource.

### 404: No description

### 410: No description

---

## Related

- [marketplace endpoints](/docs/rest-api#marketplace)

- [REST API overview](/docs/rest-api)

- [OpenAPI spec](https://openapi.vercel.sh/) (machine-readable, all endpoints)

---

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