---
title: "Replace Favicon"
method: PUT
path: "/v3/portals/{portalId}/assets/favicon"
tags: ["Assets"]
---

# Replace Favicon

`PUT /v3/portals/{portalId}/assets/favicon`

## Request

- Base URL: `https://global.api.konghq.com`
- URL: `https://global.api.konghq.com/v3/portals/{portalId}/assets/favicon`
- Auth: one of:
  - HTTP bearer
  - HTTP bearer
  - HTTP bearer
  - HTTP bearer

Replaces the favicon of the portal. The favicon is used in the browser tab of the portal.

## Request body

- ReplacePortalImageAsset, nullable: The image data to upload. Images must be a data URL with binary image data in base 64 format. See https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URLs.
  - `data` union, required
    - string, uri: must be a data URL with base64 PNG image data, e.g., data:image/png;base64,<BASE64_IMAGE_DATA>
    - string, uri: must be a data URL with base64 JPEG image data, e.g., data:image/jpeg;base64,<BASE64_IMAGE_DATA>
    - string, uri: must be a data URL with base64 GIF image data, e.g., data:image/gif;base64,<BASE64_IMAGE_DATA>
    - string, uri: must be a data URL with base64 ICO image data, e.g., data:image/ico;base64,<BASE64_IMAGE_DATA>
    - string, uri: must be a data URL with base64 SVG image data, e.g., data:image/svg\+xml;base64,<BASE64_IMAGE_DATA>

## Response `200`

Image asset for the portal. Can be either png, jpeg or svg

- object
  - `data` union, required
    - string, uri: must be a data URL with base64 PNG image data, e.g., data:image/png;base64,<BASE64_IMAGE_DATA>
    - string, uri: must be a data URL with base64 JPEG image data, e.g., data:image/jpeg;base64,<BASE64_IMAGE_DATA>
    - string, uri: must be a data URL with base64 GIF image data, e.g., data:image/gif;base64,<BASE64_IMAGE_DATA>
    - string, uri: must be a data URL with base64 ICO image data, e.g., data:image/ico;base64,<BASE64_IMAGE_DATA>
    - string, uri: must be a data URL with base64 SVG image data, e.g., data:image/svg\+xml;base64,<BASE64_IMAGE_DATA>

## Other responses

- `400`: Bad Request
- `401`: Unauthorized
- `403`: Forbidden

## Changes

- **2026-10-15** `7aab863a6daa`: 1 breaking, 2 warning
  - added `#/components/schemas/InvalidParameterMinimumTime, #/components/schemas/InvalidParameterMaximumTime` to the `invalid_parameters/items/` response property `oneOf` list for the response status `400`
  - added the new `key_invalid` enum value to the `invalid_parameters/items/oneOf[#/components/schemas/InvalidParameterStandard]/rule` response property for the response status `400`
  - added the new `unique` enum value to the `invalid_parameters/items/oneOf[#/components/schemas/InvalidParameterStandard]/rule` response property for the response status `400`
- **2026-09-25** `68d43091b84d`: 2 warning
  - added the new `400.00` enum value to the `status` response property for the response status `400`
  - added the new `403.00` enum value to the `status` response property for the response status `403`
- **2026-09-18** `f324fb7610e4`: 2 breaking, 18 info
  - the response's body type changed from no type to `object` for status `400`
  - the response's body type changed from no type to `object` for status `403`
  - removed `#/components/schemas/BaseError, subschema #2` from the response body `allOf` list for the response status `400`
  - removed `#/components/schemas/BaseError, subschema #2` from the response body `allOf` list for the response status `401`
  - …16 more
- …earlier changes not shown

[Operation history](https://skmtc.dev/kong/apis/konnect-api-go-sdk/changes/v3/portals/:portalId/assets/favicon/put.md)

---

[API](https://skmtc.dev/kong/apis/konnect-api-go-sdk.md) · [All operations](https://skmtc.dev/kong/apis/konnect-api-go-sdk/llms.txt) · [OpenAPI document](https://skmtc.dev/kong/apis/konnect-api-go-sdk/revisions/7aab863a6daa?raw)