> For the complete documentation index, see [llms.txt](https://docs.tesenso.com/tesenso-iot-cloud/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tesenso.com/tesenso-iot-cloud/rule-engine/rule-engine/filter-rule-nodes/message-type-filter.md).

# message type filter

In the Node configuration, administrator defines set of allowed Message Types for incoming Message. There are [predefined Message Types](/tesenso-iot-cloud/rule-engine/rule-engine/predefined-message-types.md) in the system, like **Post attributes**, **Post telemetry**, **RPC Request**, etc. An administrator can also define any Custom Message Types in the node configuration.

![image](https://thingsboard.io/images/user-guide/rule-engine-2-0/nodes/filter-message-type-config.png)

If incoming Message Type is expected - Message is sent via **True** chain, otherwise **False** chain is used.

![](/files/3RL2g7a6JpIR28H45yQc)

![](/files/G3Fs5h5ZlD8QmlbIUWPS)