> For the complete documentation index, see [llms.txt](https://easy-event-manager.gitbook.io/documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://easy-event-manager.gitbook.io/documentation/examples/usage-of-payload.md). # Usage of Payload How to use the Payload obje {% hint style="danger" %} Network Environment Keep in mind when using **UObjects** as payloads that they're **not replicated**, you either have to make your own replication for UObjects or use a replicated **Actor** (although this **isn't recommended**). If you choose to use Actors as payloads, make sure to destroy it if it's not in use anymore! *We are recommending to use the`Message`input instead to transfer any simple informations!* {% endhint %} {% hint style="info" %} Make sure you have read the[ Implementation Guide](/documentation/implementation/getting-started.md) before proceeding with any examples for optimal results! {% endhint %} 1. Bind the event `SaveScore` in BeginPlay():

2. Implement[^1] the [`OnEventCalled()`](/documentation/functions/on-event-called.md) event and add one of the two code examples: {% hint style="info" %} It is recommended to use **Interfaces** instead of casting! {% endhint %} {% tabs %} {% tab title="Casting" %}

Quick way with casting, not recommended for large scale
(Click on the image for original resolution)

{% endtab %} {% tab title="Interface" %}

Using Interfaces is recommended to avoid unnecessary dependencies
(Click on the image for original resolution)

#### Interface Setup 1. Create a new **Blueprint Interface** and add a new function which has the same variables as your Payload as outputs.

*Optionally add a boolean named "Success" which can be used instead of `HasInterfaceImplemented()`*

2. Implement the Interface to your Payload

{% endtab %} {% endtabs %} Done! Now you can use [`CallEvent()`](/documentation/functions/call-event.md) everywhere you want and pass a [`BPO_MyPayload`](/documentation/examples/create-a-new-payload-object.md) to it like this: {% hint style="info" %} If you cache a reference to a Payload for any reason, make sure to clear the variable as it won't be collected by the Garbage Collector otherwise. {% endhint %}

For this example I placed this into the Level Blueprint

[^1]: