# Sending messages between windows

When running multiple application windows, you may need to pass messages between them to sync data & actions.\
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Send a message to another window using the [Window - Send Window Message](/deskifier/deskifier-bubble.io-docs/windows-element/actions.md#window-send-window-message) action.\
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And listen for the [Window - Message Received](/deskifier/deskifier-bubble.io-docs/windows-element/events.md#window-message-received) event.

<figure><img src="/files/RM6UzT5aQuuQidFaVr3Y" alt=""><figcaption></figcaption></figure>

{% hint style="success" %}
Pro Tip:\
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If running external content, execute this JavaScript to send a message.\
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`await window.deskifier.invoke('sendWindowMessage', { message, toWindowId })`
{% endhint %}


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