---
title: Error 10056
description: Troubleshoot Cloudflare error 10056.
image: https://developers.cloudflare.com/core-services-preview.png
---

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# Error 10056

## Error 10056: The add list items operation contains different types of list items

This error indicates that different types of list items were combined in a single add operation.

### Common causes

This error occurs when different types of list items (such as IP addresses, hostnames, and URL redirects) are included in a single operation to add items to a list. It can occur with an IP list, a hostname list, or a Bulk Redirect List.

### Resolution

Remove the list items that do not apply to the list type. This means:

* Removing IP addresses from a request to add items to a Bulk Redirect List.
* Removing URL redirects from a request to add items to an IP list.

```json
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{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/support/","name":"Support"}},{"@type":"ListItem","position":3,"item":{"@id":"/support/troubleshooting/","name":"Troubleshooting"}},{"@type":"ListItem","position":4,"item":{"@id":"/support/troubleshooting/http-status-codes/","name":"HTTP Status Codes"}},{"@type":"ListItem","position":5,"item":{"@id":"/support/troubleshooting/http-status-codes/cloudflare-10xxx-errors/","name":"Cloudflare 10xxx errors"}},{"@type":"ListItem","position":6,"item":{"@id":"/support/troubleshooting/http-status-codes/cloudflare-10xxx-errors/error-10056/","name":"Error 10056"}}]}
```