Channel select
Channel select lets you pick a channel from a list. Use it to direct messages, assign tasks, or configure notifications. The app captures the selected channel for actions such as posting updates or routing conversations.
Example

JSON example
{
"content": {
"settings": {},
"body": [
{
"type": "section",
"layout": "horizontal",
"sections": [
{
"type": "message",
"text": "This is a section block with channel select"
},
{
"type": "select",
"static_source": "channels"
}
]
}
]
}
}