# Defining Placeholders in the Portal

This guide walks you through how to set up both **Ad Surfaces** and **Branded Object Placements** using the web-based Portal. 

This is particularly useful if anyone *other* than your developer team members need to manage placements (or your developers need to make changes while away from their main computer).

{% hint style="warning" %}
Already working inside Unity, Unreal, or Phaser?

You can also define placements directly within your engine using the ReneVerse SDK. If you've gone that route, this section is optional.
{% endhint %}

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### 🧱 What You'll Learn

* How to create and configure **Ad Surfaces** (for Smart Ads)
* How to create and configure **Branded Object Placements** (for in-world 3D brandable assets)

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### 📚 In This Section

<table data-view="cards"><thead><tr><th></th><th></th></tr></thead><tbody><tr><td><a href="defining-placeholders-in-the-portal/creating-ad-surfaces-in-the-portal"><strong>Creating Ad Surfaces</strong></a></td><td>Define where and how 2D Smart Ads (like banners and video panels) appear in your game world.</td></tr><tr><td><a href="defining-placeholders-in-the-portal/creating-branded-object-placements-in-the-portal"><strong>Creating Branded Object Placements</strong></a></td><td>Set up branded 3D objects that can dynamically appear in your game environment.</td></tr></tbody></table>