> This page is for Plataforma, version V4 experimental.
> For other versions, use one of these documentation indexes:
> - V4 (default): https://next.developer.frame.io/platform/v4/llms.txt
> - V4 experimental: https://next.developer.frame.io/platform/v4-experimental/llms.txt
> - Herdado: https://next.developer.frame.io/platform/v2/llms.txt

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://next.developer.frame.io/llms.txt.
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# Update session watermark template

PATCH https://api.frame.io/v4/accounts/{account_id}/session_watermark_templates/{session_watermark_template_id}
Content-Type: application/json

Update a session watermark template owned by an account.Rate Limits: 10 calls per 1.00 minute(s) per account\_user

Reference: https://next.developer.frame.io/platform/v4-experimental/api-reference/session-watermark-templates/update

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Request

### Path parameters

- `account_id` (string, required)
- `session_watermark_template_id` (string, required)

### Headers

- `api-version` (enum, required)
  - Allowed values: `experimental`

### Body (application/json)

This endpoint expects an UpdateSessionWatermarkTemplateParams.

- `data` (UpdateSessionWatermarkTemplateParamsData, required)

## Response

### 200

OK

- `data` (SessionWatermarkTemplate, required) — A reusable configuration for a dynamic, per-viewer overlay painted onto streamed media.

## Errors

### 400 Bad Request Error

Bad request

- `errors` (list of BadRequestErrorsItems, required)

### 401 Unauthorized Error

Unauthorized

- `errors` (list of UnauthorizedErrorsItems, required)

### 403 Forbidden Error

Forbidden

- `errors` (list of ForbiddenErrorsItems, required)

### 404 Not Found Error

Not found

- `errors` (list of NotFoundErrorsItems, required)

### 409 Conflict Error

Conflict

- `errors` (list of ConflictErrorsItems, required)

### 422 Unprocessable Entity Error

Unprocessable content

- `errors` (list of UnprocessableContentErrorsItems, required)

### 429 Too Many Requests Error

Too many requests

- `errors` (list of TooManyRequestsErrorsItems, required)

## Types

### UpdateSessionWatermarkTemplateParamsData

- `name` (string, optional) — Template name.
- `watermark_blocks` (list of SessionWatermarkBlock, optional) — The positioned chunks of text to draw on the video. Replaces the existing blocks wholesale when provided.

### SessionWatermarkTemplate

A reusable configuration for a dynamic, per-viewer overlay painted onto streamed media.

- `created_at` (string, required)
- `creator_id` (string, required, nullable)
- `deleted_at` (string, required, nullable)
- `id` (string, required) — Template ID.
- `name` (string, required) — Template name.
- `updated_at` (string, required)
- `watermark_blocks` (list of SessionWatermarkBlock, required)

### BadRequestErrorsItems

- `detail` (string, required)
- `source` (BadRequestErrorsItemsSource, optional)
- `title` (string, optional)

### UnauthorizedErrorsItems

- `detail` (string, required)
- `source` (UnauthorizedErrorsItemsSource, optional)
- `title` (string, optional)

### ForbiddenErrorsItems

- `detail` (string, required)
- `source` (ForbiddenErrorsItemsSource, optional)
- `title` (string, optional)

### NotFoundErrorsItems

- `detail` (string, required)
- `source` (NotFoundErrorsItemsSource, optional)
- `title` (string, optional)

### ConflictErrorsItems

- `detail` (string, required)
- `source` (ConflictErrorsItemsSource, optional)
- `title` (string, optional)

### UnprocessableContentErrorsItems

- `detail` (string, required)
- `source` (UnprocessableContentErrorsItemsSource, optional)
- `title` (string, optional)

### TooManyRequestsErrorsItems

- `detail` (string, required)
- `source` (TooManyRequestsErrorsItemsSource, optional)
- `title` (string, optional)

### SessionWatermarkBlock

One positioned chunk of text drawn on the video, plus its formatting and content.

- `data_points` (list of SessionWatermarkDataPoint, required) — The ordered lines of text.
- `alpha` (double, optional) — Opacity from >0 to 1.
- `font_size` (enum, optional) — Relative font size.
  - Allowed values: `small`, `medium`, `large`, `huge`
- `name` (string, optional, nullable) — Human label for the block
- `position` (enum, optional) — Named 9-grid slot.
  - Allowed values: `top_left`, `top_right`, `bottom_left`, `bottom_right`, `top_center`, `bottom_center`, `middle_left`, `middle_center`, `middle_right`
- `position_reference_point` (enum, optional, nullable) — Anchor the free-form coordinates are measured from.
  - Allowed values: `top_left`, `top_right`, `bottom_left`, `bottom_right`, `top_center`, `bottom_center`, `middle_left`, `middle_center`, `middle_right`
- `position_x` (double, optional, nullable) — Free-form X (0-1); overrides `position` when set.
- `position_y` (double, optional, nullable) — Free-form Y (0-1); overrides `position` when set.
- `rotation` (double, optional) — Rotation in degrees (-45.0 to 45.0).
- `scroll_text` (enum, optional) — Scroll animation.
  - Allowed values: `none`, `rtl`, `ltr`
- `text_alignment` (enum, optional) — Horizontal alignment.
  - Allowed values: `left`, `center`, `right`
- `text_color` (string, optional) — Hex text color.
- `text_shadow` (boolean, optional) — Draw a drop shadow behind the text.

### BadRequestErrorsItemsSource

- `pointer` (string, optional)

### UnauthorizedErrorsItemsSource

- `pointer` (string, optional)

### ForbiddenErrorsItemsSource

- `pointer` (string, optional)

### NotFoundErrorsItemsSource

- `pointer` (string, optional)

### ConflictErrorsItemsSource

- `pointer` (string, optional)

### UnprocessableContentErrorsItemsSource

- `pointer` (string, optional)

### TooManyRequestsErrorsItemsSource

- `pointer` (string, optional)

### SessionWatermarkDataPoint

One ordered line of text rendered within a block. `type` is resolved per viewer at play time; `value` holds fixed text and is only meaningful when `type` is `custom_text`.

- `order` (double, required, nullable) — Render order within the block.
- `type` (enum, required) — The dynamic value rendered for this line.
  - Allowed values: `email`, `username`, `ip_address`, `timestamp`, `custom_text`, `user_input`
- `value` (string, optional, nullable) — Fixed text; only set when `type` is `custom_text`.

## Examples

**Request**

```json
{
  "data": {
    "name": "ABC Watermark (v2)",
    "watermark_blocks": [
      {
        "data_points": [
          {
            "order": 0,
            "type": "email",
            "value": null
          },
          {
            "order": 1,
            "type": "ip_address",
            "value": null
          },
          {
            "order": 2,
            "type": "timestamp",
            "value": null
          }
        ],
        "alpha": 0.5,
        "font_size": "medium",
        "name": "viewer-identity",
        "position": "bottom_center",
        "position_reference_point": null,
        "position_x": null,
        "position_y": null,
        "rotation": 0,
        "scroll_text": "rtl",
        "text_alignment": "center",
        "text_color": "#FFFFFF",
        "text_shadow": true
      }
    ]
  }
}
```

**Response**

```json
{
  "data": {
    "created_at": "2026-08-18T21:34:58.501275Z",
    "creator_id": "781d994f-390d-4f42-8d07-ef4ddd24215e",
    "deleted_at": null,
    "id": "6f1c9b2e-4c3a-4a1e-9b2e-0a1b2c3d4e5f",
    "name": "ABC Watermark",
    "updated_at": "2026-08-18T21:34:58.501275Z",
    "watermark_blocks": [
      {
        "data_points": [
          {
            "order": 0,
            "type": "email",
            "value": null
          },
          {
            "order": 1,
            "type": "ip_address",
            "value": null
          },
          {
            "order": 2,
            "type": "timestamp",
            "value": null
          }
        ],
        "alpha": 0.5,
        "font_size": "medium",
        "name": "viewer-identity",
        "position": "bottom_center",
        "position_reference_point": null,
        "position_x": null,
        "position_y": null,
        "rotation": 0,
        "scroll_text": "rtl",
        "text_alignment": "center",
        "text_color": "#FFFFFF",
        "text_shadow": true
      }
    ]
  }
}
```

**SDK Code**

```python
import requests

url = "https://api.frame.io/v4/accounts/679b7960-1cd1-4689-b7f9-a33afabdba03/session_watermark_templates/d75decc5-0fad-4440-84b2-ff1502bf626f"

payload = { "data": {
        "name": "ABC Watermark (v2)",
        "watermark_blocks": [
            {
                "data_points": [
                    {
                        "order": 0,
                        "type": "email",
                        "value": None
                    },
                    {
                        "order": 1,
                        "type": "ip_address",
                        "value": None
                    },
                    {
                        "order": 2,
                        "type": "timestamp",
                        "value": None
                    }
                ],
                "alpha": 0.5,
                "font_size": "medium",
                "name": "viewer-identity",
                "position": "bottom_center",
                "position_reference_point": None,
                "position_x": None,
                "position_y": None,
                "rotation": 0,
                "scroll_text": "rtl",
                "text_alignment": "center",
                "text_color": "#FFFFFF",
                "text_shadow": True
            }
        ]
    } }
headers = {
    "api-version": "experimental",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.patch(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.frame.io/v4/accounts/679b7960-1cd1-4689-b7f9-a33afabdba03/session_watermark_templates/d75decc5-0fad-4440-84b2-ff1502bf626f';
const options = {
  method: 'PATCH',
  headers: {
    'api-version': 'experimental',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: '{"data":{"name":"ABC Watermark (v2)","watermark_blocks":[{"data_points":[{"order":0,"type":"email","value":null},{"order":1,"type":"ip_address","value":null},{"order":2,"type":"timestamp","value":null}],"alpha":0.5,"font_size":"medium","name":"viewer-identity","position":"bottom_center","position_reference_point":null,"position_x":null,"position_y":null,"rotation":0,"scroll_text":"rtl","text_alignment":"center","text_color":"#FFFFFF","text_shadow":true}]}}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.frame.io/v4/accounts/679b7960-1cd1-4689-b7f9-a33afabdba03/session_watermark_templates/d75decc5-0fad-4440-84b2-ff1502bf626f"

	payload := strings.NewReader("{\n  \"data\": {\n    \"name\": \"ABC Watermark (v2)\",\n    \"watermark_blocks\": [\n      {\n        \"data_points\": [\n          {\n            \"order\": 0,\n            \"type\": \"email\",\n            \"value\": null\n          },\n          {\n            \"order\": 1,\n            \"type\": \"ip_address\",\n            \"value\": null\n          },\n          {\n            \"order\": 2,\n            \"type\": \"timestamp\",\n            \"value\": null\n          }\n        ],\n        \"alpha\": 0.5,\n        \"font_size\": \"medium\",\n        \"name\": \"viewer-identity\",\n        \"position\": \"bottom_center\",\n        \"position_reference_point\": null,\n        \"position_x\": null,\n        \"position_y\": null,\n        \"rotation\": 0,\n        \"scroll_text\": \"rtl\",\n        \"text_alignment\": \"center\",\n        \"text_color\": \"#FFFFFF\",\n        \"text_shadow\": true\n      }\n    ]\n  }\n}")

	req, _ := http.NewRequest("PATCH", url, payload)

	req.Header.Add("api-version", "experimental")
	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.frame.io/v4/accounts/679b7960-1cd1-4689-b7f9-a33afabdba03/session_watermark_templates/d75decc5-0fad-4440-84b2-ff1502bf626f")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Patch.new(url)
request["api-version"] = 'experimental'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"data\": {\n    \"name\": \"ABC Watermark (v2)\",\n    \"watermark_blocks\": [\n      {\n        \"data_points\": [\n          {\n            \"order\": 0,\n            \"type\": \"email\",\n            \"value\": null\n          },\n          {\n            \"order\": 1,\n            \"type\": \"ip_address\",\n            \"value\": null\n          },\n          {\n            \"order\": 2,\n            \"type\": \"timestamp\",\n            \"value\": null\n          }\n        ],\n        \"alpha\": 0.5,\n        \"font_size\": \"medium\",\n        \"name\": \"viewer-identity\",\n        \"position\": \"bottom_center\",\n        \"position_reference_point\": null,\n        \"position_x\": null,\n        \"position_y\": null,\n        \"rotation\": 0,\n        \"scroll_text\": \"rtl\",\n        \"text_alignment\": \"center\",\n        \"text_color\": \"#FFFFFF\",\n        \"text_shadow\": true\n      }\n    ]\n  }\n}"

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.patch("https://api.frame.io/v4/accounts/679b7960-1cd1-4689-b7f9-a33afabdba03/session_watermark_templates/d75decc5-0fad-4440-84b2-ff1502bf626f")
  .header("api-version", "experimental")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"data\": {\n    \"name\": \"ABC Watermark (v2)\",\n    \"watermark_blocks\": [\n      {\n        \"data_points\": [\n          {\n            \"order\": 0,\n            \"type\": \"email\",\n            \"value\": null\n          },\n          {\n            \"order\": 1,\n            \"type\": \"ip_address\",\n            \"value\": null\n          },\n          {\n            \"order\": 2,\n            \"type\": \"timestamp\",\n            \"value\": null\n          }\n        ],\n        \"alpha\": 0.5,\n        \"font_size\": \"medium\",\n        \"name\": \"viewer-identity\",\n        \"position\": \"bottom_center\",\n        \"position_reference_point\": null,\n        \"position_x\": null,\n        \"position_y\": null,\n        \"rotation\": 0,\n        \"scroll_text\": \"rtl\",\n        \"text_alignment\": \"center\",\n        \"text_color\": \"#FFFFFF\",\n        \"text_shadow\": true\n      }\n    ]\n  }\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('PATCH', 'https://api.frame.io/v4/accounts/679b7960-1cd1-4689-b7f9-a33afabdba03/session_watermark_templates/d75decc5-0fad-4440-84b2-ff1502bf626f', [
  'body' => '{
  "data": {
    "name": "ABC Watermark (v2)",
    "watermark_blocks": [
      {
        "data_points": [
          {
            "order": 0,
            "type": "email",
            "value": null
          },
          {
            "order": 1,
            "type": "ip_address",
            "value": null
          },
          {
            "order": 2,
            "type": "timestamp",
            "value": null
          }
        ],
        "alpha": 0.5,
        "font_size": "medium",
        "name": "viewer-identity",
        "position": "bottom_center",
        "position_reference_point": null,
        "position_x": null,
        "position_y": null,
        "rotation": 0,
        "scroll_text": "rtl",
        "text_alignment": "center",
        "text_color": "#FFFFFF",
        "text_shadow": true
      }
    ]
  }
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
    'api-version' => 'experimental',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.frame.io/v4/accounts/679b7960-1cd1-4689-b7f9-a33afabdba03/session_watermark_templates/d75decc5-0fad-4440-84b2-ff1502bf626f");
var request = new RestRequest(Method.PATCH);
request.AddHeader("api-version", "experimental");
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"data\": {\n    \"name\": \"ABC Watermark (v2)\",\n    \"watermark_blocks\": [\n      {\n        \"data_points\": [\n          {\n            \"order\": 0,\n            \"type\": \"email\",\n            \"value\": null\n          },\n          {\n            \"order\": 1,\n            \"type\": \"ip_address\",\n            \"value\": null\n          },\n          {\n            \"order\": 2,\n            \"type\": \"timestamp\",\n            \"value\": null\n          }\n        ],\n        \"alpha\": 0.5,\n        \"font_size\": \"medium\",\n        \"name\": \"viewer-identity\",\n        \"position\": \"bottom_center\",\n        \"position_reference_point\": null,\n        \"position_x\": null,\n        \"position_y\": null,\n        \"rotation\": 0,\n        \"scroll_text\": \"rtl\",\n        \"text_alignment\": \"center\",\n        \"text_color\": \"#FFFFFF\",\n        \"text_shadow\": true\n      }\n    ]\n  }\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "api-version": "experimental",
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = ["data": [
    "name": "ABC Watermark (v2)",
    "watermark_blocks": [
      [
        "data_points": [
          [
            "order": 0,
            "type": "email",
            "value": 
          ],
          [
            "order": 1,
            "type": "ip_address",
            "value": 
          ],
          [
            "order": 2,
            "type": "timestamp",
            "value": 
          ]
        ],
        "alpha": 0.5,
        "font_size": "medium",
        "name": "viewer-identity",
        "position": "bottom_center",
        "position_reference_point": ,
        "position_x": ,
        "position_y": ,
        "rotation": 0,
        "scroll_text": "rtl",
        "text_alignment": "center",
        "text_color": "#FFFFFF",
        "text_shadow": true
      ]
    ]
  ]] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.frame.io/v4/accounts/679b7960-1cd1-4689-b7f9-a33afabdba03/session_watermark_templates/d75decc5-0fad-4440-84b2-ff1502bf626f")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "PATCH"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```