# Pump.fun transactions failing due to slippage

An incorrect slippage setting is a common reason why Pump.fun trades don’t get copied.

We can confirm if our transaction failed due to slippage % by using tools like Solscan, where viewing the transaction signature reveals if slippage was the cause.

1. Go to [**solscan.io**](https://solscan.io) and search for your wallet.
2. Look for the failed transaction that occurred at the time of the trade. (*has a red sign next to it*)

<figure><img src="/files/LuPmVEtXtoLiN2PZqdBT" alt=""><figcaption></figcaption></figure>

3. Open the transaction and you will see one of the following errors: \
   \&#xNAN;***"Program Error: "Instruction #4 Failed - custom program error: slippage: Too much SOL required to buy the given amount of tokens"***\
   \
   \&#xNAN;*or*\
   \
   ***"Program Error: "Instruction #4 Failed - custom program error: 6042 | Slippage: Would buy less tokens than expected min\_tokens\_out"***

<figure><img src="/files/qjO2JdSONcR9pncCOKME" alt=""><figcaption><p>An example of a failed transaction due to the slippage</p></figcaption></figure>

**Solution:** If you are willing to accept a higher price difference and would like to catch these trades regardless, increase the Pump.fun slippage %.

If you are uncertain how much should you increase the slippage %, you can follow these steps:

{% content-ref url="/pages/jUYcYHJPReMossLzule6" %}
[What's the Pump.fun slippage and how to configure it?](/faqs/6.-frequently-asked-questions/whats-the-pump.fun-slippage-and-how-to-configure-it.md)
{% endcontent-ref %}

{% embed url="<https://youtu.be/9i7QYPUn5X4>" %}

{% content-ref url="/pages/KSzIEauwQCi4vUcvk3tJ" %}
[7. Most common issues with OdinBot not mirroring](/faqs/7.-most-common-issues-with-odinbot-not-mirroring.md)
{% endcontent-ref %}


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