# 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**

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

<figure><img src="https://2981049874-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fxxxhzz4ER0TH1oIFAttf%2Fuploads%2FTO4kL6HwHo243DLabBWS%2Fimage.png?alt=media&#x26;token=e3d631ba-d902-4ef1-83ba-2b10e474dc31" alt=""><figcaption></figcaption></figure>

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

<figure><img src="https://2981049874-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fxxxhzz4ER0TH1oIFAttf%2Fuploads%2Fg6s6KAUuAumuDMBTcVRz%2Fimage.png?alt=media&#x26;token=d253b441-d3b1-4a0a-a495-c6ebc88b1364" alt=""><figcaption></figcaption></figure>