Deep link that opens up Slack and auto-fills text in the message box

Question

I wish to implement this feature that allows users to use a deep link into a Slack's channel on their phones or computers, and pre-fill some texts in the message box.

I have read through the documents and didn't find relevant solutions.

I was hoping to find a link that looks like:

https://slack.com/app_redirect?app=A1BES823B?text=prefilled_message

Answer 1

Deep Links in Slack do not support including a text message. You can only open a channel.

But you can use incoming webhooks to send messages to a channel on Slack.

Or if you want to provide that exact functionality you can always build your own app to do it.