> For the complete documentation index, see [llms.txt](https://docs.luciq.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.luciq.ai/ios/setup-luciq-for-ios/custom-settings/user-identification/user-events.md).

# User Events

You can log custom user events throughout your application. Custom events are automatically included with each report.

{% tabs %}
{% tab title="Swift" %}
{% code overflow="wrap" %}

```swift
Luciq.logUserEvent(withName: "Skipped Walkthrough")
```

{% endcode %}
{% endtab %}

{% tab title="Objective-C" %}
{% code overflow="wrap" %}

```objectivec
[Luciq logUserEventWithName:@"Skipped Walkthrough"];
```

{% endcode %}
{% endtab %}
{% endtabs %}

## Logging User Events with Parameters

Starting from SDK version **19.8.0**, you can attach key-value parameters to a user event to capture additional context. Pass an array of `UserEventParam` instances alongside the event name.

{% tabs %}
{% tab title="Swift" %}
{% code overflow="wrap" %}

```swift
Luciq.logUserEvent(withName: "Completed Purchase", parameters: [
    UserEventParam(key: "item", value: "Premium Plan"),
    UserEventParam(key: "currency", value: "USD")
])
```

{% endcode %}
{% endtab %}

{% tab title="Objective-C" %}
{% code overflow="wrap" %}

```objectivec
[Luciq logUserEventWithName:@"Completed Purchase" parameters:@[
    [[LCQUserEventParam alloc] initWithKey:@"item" value:@"Premium Plan"],
    [[LCQUserEventParam alloc] initWithKey:@"currency" value:@"USD"]
]];
```

{% endcode %}
{% endtab %}
{% endtabs %}

{% hint style="info" %}

#### Scope and behavior

* Keys are limited to 50 characters and values to 200 characters. Entries that are empty, exceed these limits, or repeat a key already added are dropped with a console error.
* Up to 15 parameters can be attached to an event by default. Reach out to Luciq support if your account needs a higher limit.
* Logging additional parameters for the same event name merges them into the existing set using first-wins semantics — an earlier value for a key is kept and the new value is dropped — and the merged set is still capped at the configured limit.
  {% endhint %}


---

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