# Slippage

## Slippage in Swap

**Slippage in swap** refers to the difference between the price you see when you submit a swap and the price you actually get when it executes on-chain. DEX prices can change rapidly during the block confirmation time, your final exchange rate may vary.

To protect users in Byreal, we allows users to set a **swap** **slippage tolerance** — the maximum price deviation you’re willing to accept. If the price moves beyond that threshold, the swap will automatically revert to prevent unexpected losses.

{% hint style="info" %}
**Example**

If you set a 1% slippage tolerance and the price changes by more than that before execution, the trade will fail automatically.
{% endhint %}

## Slippage in Liquidity Provision

**Slippage in liquidity provision** refers to the potential deviation between your **expected token deposit amounts** and the **actual amounts required** when executing an add-liquidity transaction. This occurs because V3 requires liquidity to be concentrated within specific **price ranges (ticks)**.

To manage this, Byreal allows you to set a liquidity slippage tolerance — the maximum percentage deviation from the expected amount that you are willing to deposit. If the actual execution amount exceeds your specified tolerance, the add-liquidity transaction will automatically revert.


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