# Update application level sign-in experience

**PUT /api/applications/{applicationId}/sign-in-experience**

Update application level sign-in experience for the specified application. Create a new sign-in experience if it does not exist. 
 - Only branding properties and terms links customization is supported for now. 

 - Only third-party applications can be customized for now. 

 - Application level sign-in experience customization is optional, if provided, it will override the default branding and terms links.


## Servers
- Logto endpoint address.: https://[tenant_id].logto.app (Logto endpoint address.)


## Authentication methods
- O auth2


## Parameters

### Path parameters
- **applicationId** (string)
  The unique identifier of the application.


### Body: application/json (object)

- **color** (object)

- **branding** (object)

- **customCss** (string | null)

- **displayName** (string | null)

- **termsOfUseUrl** (string(url) | null | string(empty))

- **privacyPolicyUrl** (string(url) | null | string(empty))



## Responses
### 200
The application's sign-in experience was successfully updated.

#### Body: application/json (object)
- **tenantId** (string)

- **applicationId** (string)

- **color** (object)

- **branding** (object)

- **customCss** (string | null)

- **termsOfUseUrl** (string | null)

- **privacyPolicyUrl** (string | null)

- **displayName** (string | null)


### 201
A new application level sign-in experience settings was successfully created.

#### Body: application/json (object)
- **tenantId** (string)

- **applicationId** (string)

- **color** (object)

- **branding** (object)

- **customCss** (string | null)

- **termsOfUseUrl** (string | null)

- **privacyPolicyUrl** (string | null)

- **displayName** (string | null)


### 400
Bad Request

### 401
Unauthorized

### 403
Forbidden

### 404
The application does not exist.

### 422
Unprocessable Content


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