# Set Product

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## Introduction

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Only valid for Steam Game Servers
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Sets the game product identifier. This is currently used by the master server for version-checking purposes.

Converting the game's app ID to a string for this is recommended.

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This is required for all game servers and can only be set before calling [Log On](/old-kb/old-toolkit-for-steamworks/unreal/blueprint-nodes/functions/log-on.md) / [Log On Anonymous](/old-kb/old-toolkit-for-steamworks/unreal/blueprint-nodes/functions/log-on-anonymous.md)
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### Product

The unique identifier for your game. Must not be **NULL** or an empty string. Sets the game product identifier. This is currently used by the master server for version-checking purposes.

Converting the game's app ID to a string for this is recommended.

## Nodes

<figure><img src="/files/nJRBkcwdfc6EfD2HPCZu" alt=""><figcaption></figcaption></figure>


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