# Prevent Mixed Rates Purchase

In some scenario, you may want to prevent customers to purchase different rates, for example a Monthly and Annual offers at the same time.

If Prevent Mixed rates Feature is activated, customers won't be able to checkout with mixed payments rate offer in cart.

**1: Activate the Prevent Mixed Rate Feature**

<figure><img src="/files/2LMHmlH7JDfoFMQOXb1A" alt=""><figcaption></figcaption></figure>

**2: The customer selects a monthly offer rate plan.**

<figure><img src="/files/5slnDdFrOf3C085CmC1f" alt=""><figcaption></figcaption></figure>

**3: The customer sees an error message while adding Annual offer rate plan to the cart.**

<figure><img src="/files/Fq5kWvjxRCttpKa3lCEv" alt=""><figcaption></figcaption></figure>


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