# Update user notification preferences

Update the user's notification group opt-in state.
The `groups` object is treated as a partial map: only the keys you
include are modified. Keys you omit are left untouched. This means
clients only need to send the groups they want to change, and adding
new groups to the API in the future cannot accidentally clobber an
old client's silence on them.
`PATCH {}` and `PATCH {"groups": {}}` are valid no-ops. Unknown group
names produce a `400`.

Endpoint: PATCH /users/{user_id}/notification_preferences
Version: 2.0
Security: oauth2

## Security:

  - `oauth2` (unknown)
    oauth2 scopes: notification_preferences:write

## Path parameters:

  - `user_id` (string, required)
    The ID of the specific user to retrieve.

## Header parameters:

  - `EvEnergy-Version` (number)
    Specify the version of this endpoint to use.

## Request fields (application/json):

  - `groups` (object)
    Map of notification group name to opt-in state. Each group
corresponds to a category of push/email notifications:
- `charging_flow`
 — session lifecycle updates (plug-in, schedule, complete).
- `charging_issues`
 — errors and failures during a charging session.
- `charging_optimisation`
 — smart-charging schedule and savings updates.
- `deals_and_offers`
 — marketing offers (subject to the user's marketing consent).
- `power_supply_notifications`
 — grid / power-supply events (feature-flagged).
    Example: {"charging_flow":true,"charging_issues":true,"charging_optimisation":false,"deals_and_offers":false,"power_supply_notifications":false}

  - `groups.charging_flow` (boolean)

  - `groups.charging_issues` (boolean)

  - `groups.charging_optimisation` (boolean)

  - `groups.deals_and_offers` (boolean)

  - `groups.power_supply_notifications` (boolean)

## Response 200:

  - `200` (unknown)
    Notification preferences updated successfully.

## Response 200 fields (application/json):

  - `url` (string)
    Example: https://api.ev.energy/v2/users/user01HN2NJ9NMRZBXT1H6FT9N7735/notification_preferences

  - `groups` (object)
    Map of notification group name to opt-in state. Each group
corresponds to a category of push/email notifications:
- `charging_flow`
 — session lifecycle updates (plug-in, schedule, complete).
- `charging_issues`
 — errors and failures during a charging session.
- `charging_optimisation`
 — smart-charging schedule and savings updates.
- `deals_and_offers`
 — marketing offers (subject to the user's marketing consent).
- `power_supply_notifications`
 — grid / power-supply events (feature-flagged).
    Example: {"charging_flow":true,"charging_issues":true,"charging_optimisation":false,"deals_and_offers":false,"power_supply_notifications":false}

  - `groups.charging_flow` (boolean)

  - `groups.charging_issues` (boolean)

  - `groups.charging_optimisation` (boolean)

  - `groups.deals_and_offers` (boolean)

  - `groups.power_supply_notifications` (boolean)

## Response 200 headers (application/json):

  - `EvEnergy-Version` (number)
    Indicates the version of the API that generated this response. If EvEnergy-Version was not specified in the request, this will be your OAuth application's default version.
    Enum: "2"

  - `X-RateLimit-Limit` (number)
    The maximum number of requests that can be made to this endpoint per hour. Defaults to 1000 but may vary per client.

  - `X-RateLimit-Remaining` (number)
    The number of requests remaining until this client's rate limit is reached.

## Response 400:

  - `400` (unknown)
    The notification preferences update request body failed validation.

## Response 400 fields (application/problem+json):

  - `type` (string)
    Example: https://api.ev.energy/v2/problems/example-problem/

  - `status` (number)
    Example: 400

  - `title` (string, required)
    Example: Short description

  - `detail` (string, required)
    Example: Long, more specific description.

  - `instance` (string)
    Example: https://api.ev.energy/v2/users/user01HN2P75GBNFRJPCZJXEFVXH5E

  - `notification` (object)
    Something that the user should be informed about.

  - `notification.id` (string, required)
    Unique identifier for the Notification
    Example: notf67O36PLTFDB57M0E5L33JZLGM0

  - `notification.url` (string, required)
    Example: https://api.ev.energy/notifications/notf67O36PLTFDB57M0E5L33JZLGM0

  - `notification.message_id` (string, required)
    Internal identifier for this notification type. E.g. 'ERR0023'

  - `notification.category` (string, required)
    Category of this notification type
    Enum: "ACTIONABLE", "SERVICE", "RETRY", "MARKETING", "INTERNAL"

  - `notification.event_time` (string, required)
    The timestamp of the event described by this notification

  - `notification.short_text_title` (string, required)
    Short title for the notification

  - `notification.short_text_body` (string, required)
    Short description of the event being notified

  - `notification.detail_page_title` (string, required)
    Title of a help page giving more information about this notification

  - `notification.detail_page_body` (string, required)
    Text of a help page giving more information about this notification

  - `notification.external_link` (string | null, required)
    URL of a web page giving further information about this notification

  - `notification.external_button_label` (string, required)
    Text to be displayed on a button leading to the external_link location

  - `notification.read_at` (string)
    When the user examined the contents of this notification

  - `notification.resolved_at` (string)
    When the problem associated with this notification was resolved

## Response 400 headers (application/problem+json):

  - `EvEnergy-Version` (number)
    Indicates the version of the API that generated this response. If EvEnergy-Version was not specified in the request, this will be your OAuth application's default version.
    Enum: "2"

  - `X-RateLimit-Limit` (number)
    The maximum number of requests that can be made to this endpoint per hour. Defaults to 1000 but may vary per client.

  - `X-RateLimit-Remaining` (number)
    The number of requests remaining until this client's rate limit is reached.

## Response 401:

  - `401` (unknown)
    You need to authorise requests to access this resource.

## Response 401 fields (application/problem+json):

  - `status` (number)
    Example: 401

  - `title` (string, required)
    Example: Unauthorized

  - `detail` (string, required)
    Example: Authentication credentials were not provided.

## Response 401 headers (application/problem+json):

  - `EvEnergy-Version` (number)
    Indicates the version of the API that generated this response. If EvEnergy-Version was not specified in the request, this will be your OAuth application's default version.
    Enum: "2"

  - `X-RateLimit-Limit` (number)
    The maximum number of requests that can be made to this endpoint per hour. Defaults to 1000 but may vary per client.

  - `X-RateLimit-Remaining` (number)
    The number of requests remaining until this client's rate limit is reached.

  - `RetryAfter` (number)
    The number of seconds until this client's requests will not be rate limited.

## Response 403:

  - `403` (unknown)
    You do not have permission to perform this action.

## Response 403 fields (application/problem+json):

  - `status` (number)
    Example: 403

  - `title` (string, required)
    Example: Forbidden

  - `detail` (string, required)
    Example: You do not have permission to perform this action.

## Response 403 headers (application/problem+json):

  - `EvEnergy-Version` (number)
    Indicates the version of the API that generated this response. If EvEnergy-Version was not specified in the request, this will be your OAuth application's default version.
    Enum: "2"

  - `X-RateLimit-Limit` (number)
    The maximum number of requests that can be made to this endpoint per hour. Defaults to 1000 but may vary per client.

  - `X-RateLimit-Remaining` (number)
    The number of requests remaining until this client's rate limit is reached.

  - `RetryAfter` (number)
    The number of seconds until this client's requests will not be rate limited.

## Response 404:

  - `404` (unknown)
    This resource either does not exist or the client is not authorized to access it.

## Response 404 fields (application/problem+json):

  - `status` (number)
    Example: 404

  - `title` (string, required)
    Example: Not found

  - `detail` (string, required)
    Example: Resource does not exist or cannot be accessed.

## Response 404 headers (application/problem+json):

  - `EvEnergy-Version` (number)
    Indicates the version of the API that generated this response. If EvEnergy-Version was not specified in the request, this will be your OAuth application's default version.
    Enum: "2"

  - `X-RateLimit-Limit` (number)
    The maximum number of requests that can be made to this endpoint per hour. Defaults to 1000 but may vary per client.

  - `X-RateLimit-Remaining` (number)
    The number of requests remaining until this client's rate limit is reached.

  - `RetryAfter` (number)
    The number of seconds until this client's requests will not be rate limited.

## Response 405:

  - `405` (unknown)
    Could not satisfy this HTTP method.

## Response 405 fields (application/problem+json):

  - `status` (number)
    Example: 405

  - `title` (string, required)
    Example: Method Not Allowed

  - `detail` (string, required)
    Example: Could not satisfy this HTTP method.

## Response 405 headers (application/problem+json):

  - `EvEnergy-Version` (number)
    Indicates the version of the API that generated this response. If EvEnergy-Version was not specified in the request, this will be your OAuth application's default version.
    Enum: "2"

  - `X-RateLimit-Limit` (number)
    The maximum number of requests that can be made to this endpoint per hour. Defaults to 1000 but may vary per client.

  - `X-RateLimit-Remaining` (number)
    The number of requests remaining until this client's rate limit is reached.

  - `RetryAfter` (number)
    The number of seconds until this client's requests will not be rate limited.

## Response 406:

  - `406` (unknown)
    Could not satisfy the request Accept header.

## Response 406 fields (application/problem+json):

  - `status` (number)
    Example: 406

  - `title` (string, required)
    Example: Not Acceptable

  - `detail` (string, required)
    Example: Could not satisfy the request Accept header.

## Response 406 headers (application/problem+json):

  - `EvEnergy-Version` (number)
    Indicates the version of the API that generated this response. If EvEnergy-Version was not specified in the request, this will be your OAuth application's default version.
    Enum: "2"

  - `X-RateLimit-Limit` (number)
    The maximum number of requests that can be made to this endpoint per hour. Defaults to 1000 but may vary per client.

  - `X-RateLimit-Remaining` (number)
    The number of requests remaining until this client's rate limit is reached.

  - `RetryAfter` (number)
    The number of seconds until this client's requests will not be rate limited.

## Response 429:

  - `429` (unknown)
    The client has exceeded its rate limit.

## Response 429 fields (application/problem+json):

  - `type` (string)
    Example: https://api.ev.energy/v2/problems/example-problem/

  - `status` (number)
    Example: 400

  - `title` (string, required)
    Example: Short description

  - `detail` (string, required)
    Example: Long, more specific description.

  - `instance` (string)
    Example: https://api.ev.energy/v2/users/user01HN2P75GBNFRJPCZJXEFVXH5E

  - `notification` (object)
    Something that the user should be informed about.

  - `notification.id` (string, required)
    Unique identifier for the Notification
    Example: notf67O36PLTFDB57M0E5L33JZLGM0

  - `notification.url` (string, required)
    Example: https://api.ev.energy/notifications/notf67O36PLTFDB57M0E5L33JZLGM0

  - `notification.message_id` (string, required)
    Internal identifier for this notification type. E.g. 'ERR0023'

  - `notification.category` (string, required)
    Category of this notification type
    Enum: "ACTIONABLE", "SERVICE", "RETRY", "MARKETING", "INTERNAL"

  - `notification.event_time` (string, required)
    The timestamp of the event described by this notification

  - `notification.short_text_title` (string, required)
    Short title for the notification

  - `notification.short_text_body` (string, required)
    Short description of the event being notified

  - `notification.detail_page_title` (string, required)
    Title of a help page giving more information about this notification

  - `notification.detail_page_body` (string, required)
    Text of a help page giving more information about this notification

  - `notification.external_link` (string | null, required)
    URL of a web page giving further information about this notification

  - `notification.external_button_label` (string, required)
    Text to be displayed on a button leading to the external_link location

  - `notification.read_at` (string)
    When the user examined the contents of this notification

  - `notification.resolved_at` (string)
    When the problem associated with this notification was resolved

## Response 429 headers (application/problem+json):

  - `EvEnergy-Version` (number)
    Indicates the version of the API that generated this response. If EvEnergy-Version was not specified in the request, this will be your OAuth application's default version.
    Enum: "2"

  - `Retry-After` (number)
    The number of seconds until this client's requests will not be rate limited.

  - `X-RateLimit-Limit` (number)
    The maximum number of requests that can be made to this endpoint per hour. Defaults to 1000 but may vary per client.

  - `X-RateLimit-Remaining` (number)
    The number of requests remaining until this client's rate limit is reached.

## Response 400 examples:

  - `Request failed validation` (unknown)

## Response 429 examples:

  - `Example 1` (unknown)