# Edit Client

View and edit an existing client.

## Pages routes

- `/system/settings/clients` — List, search and manage all clients.
- `/system/settings/clients/create` — Create a new client registry.
- `/system/settings/clients/{uuid}` — View and edit an existing client registry. *(this page)*

## What you can do here

### How to edit a client
1. On the **Clients** list page, open the row actions menu on the client you want to edit and click **Edit**.
2. Update the fields below — required: **ua prefix**.
3. Click **Save** — the changes to the client are saved.


## Fields

| Field | Required | Notes |
|-------|----------|-------|
| **User-Agent prefix** | required | text input — custom format; max 120; min 2 |
| **client key** | optional | text input — max 256 |
| **Enabled** | optional | button |

- The **User-Agent prefix** field is a required text input that must match a custom format and allows up to 120 characters and requires at least 2 characters.
- The **client key** field is an optional text input that allows up to 256 characters.
- The **Enabled** field is an optional button.

## Actions

| Action | Status | Permission | What it does | Require Step-Up Auth |
|--------|--------|------------|--------------|----------------------|
| **Save** | ENABLED | `client_registry.update.single` | Validates the form and saves changes to the client | no |
| **Cancel** | ENABLED | — | Discards changes and returns to the previous page | no |

- The **Save** action is available on this page — validates the form and saves changes to the client and it requires the `client_registry.update.single` permission.
- The **Cancel** action is available on this page — discards changes and returns to the previous page.

## Doc references

- [Clients](/backend/guide/generated/clients)
- [Clients Create](/backend/guide/generated/clients-create)
- [Entities Crud](/backend/dev/entities-crud)