# Blacklisting Customers To blacklist users, navigate to blacklist on your sidebar and click **Add.** Then you select the type of data you want to blacklist, **Email Address** , or **IP Address.** You enter the data in **Blocked Data** and add an **optional note**. ![](https://autobuy.flowlu.com/files/download/6295cea3-9f12-11ea-9272-fa163e7d9ee1) When a user is blacklisted and they attempt to purchase something they will be notified that they are blacklisted. ![](https://autobuy.flowlu.com/files/download/83a7b932-9f13-11ea-9272-fa163e7d9ee1) If you have been blacklisted, please contact the seller for more information. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.autobuy.io/your-shop/blacklisting-customers.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.