# What is an Item ID

{% hint style="info" %}
You might want to learn more about [Data Assets and their function](/character-builder/data-assets-and-their-function.md) first to have more insight on the topic
{% endhint %}

Every single item provided by the packs has its own unique ID assigned in its respective **Item Data Asset**. \
\
It is an integer of length of 9 digits with a format of **XXYYYZZCC**

**XX** - body type, currently in use - 10 and 20 (female and male) \
**YYY** - pack number item belongs to\
**ZZ** - item number in the pack\
**CC** - variation of the item

<figure><img src="/files/whgSrySVtKIWqpsrzcyN" alt=""><figcaption><p>Example Item Definition Data Asset</p></figcaption></figure>

{% hint style="info" %}
Learn more about [Body Types](/character-builder/body-types.md)
{% endhint %}

ID is used a lot to indirectly and non-destructively reference items across different packs which might or might not be present in your project/selection of items for the character.&#x20;

Usage of Item ID:

* Selection of currently equipped items
* Setting material collection tags
* Picking right alternative meshes for Mesh Replacement System
* Item filtering by body type
* Banning incompatible items from being equipped
* UI interaction with component


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