> For the complete documentation index, see [llms.txt](https://impossible.gitbook.io/impossible-finance-faq/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://impossible.gitbook.io/impossible-finance-faq/launchpad/launchpad-overview/the-fcfs-mechanism.md).

# The FCFS mechanism

### Introduction of FCFS Allocation Model

#### What is the FCFS Model?

The First Come First Serve (FCFS) Allocation model is introduced to make token sales more accessible to a broader range of users. This model allows users to purchase project tokens on a first-come, first-served basis without the need to stake IDIA tokens.

#### Advantages of the FCFS Model

{% hint style="success" %}
**Lower Barrier to Entry**: This model simplifies the process for new users to participate in sales, contributing to user acquisition.
{% endhint %}

{% hint style="success" %}
**Capital Raising and Greater Token Distribution:** It helps raise more capital for projects and increases the distribution of tokens to a wider user group. 
{% endhint %}

{% hint style="success" %}
**Targeting New User Segments:** The FCFS model represents an active approach by Impossible to attract new users in the expansive crypto ecosystem.
{% endhint %}

### How to FCFS?

Step 1. Open the card with FCFS pool and wait for the purchase period to start. 

<figure><img src="/files/fhtDNFkHEXAFIgKp8L9C" alt=""><figcaption></figcaption></figure>

Step 2. Once purchase period starts, enter an amount less or equal to the maximum of the allowable purchase amount and submit the transaction. \
\
The red bar will highilght how many tokens are remaining before the sale is sold out. \
Hint: You will need to act quickly in order to secure your desired allocation.&#x20;

<figure><img src="/files/UMk9U8bXLK51CHQmyY6V" alt=""><figcaption></figcaption></figure>

Step 3. If your purchase is successful, your amount balanced will be shown.

There will be a countdown or indication of when you will be able to claim your tokens.&#x20;

Depending on each projects, you will either be able to claim your tokens on this site via a claim button or via another method which will be announced clearly.

<figure><img src="/files/mAtK4PaXHqImEWzTjFly" alt=""><figcaption></figcaption></figure>