For a toy app I'm building right now, I've defined some post-installation actions so that a channel is automatically created for the app and the user who installed the app is invited to the channel. However, every time during installation I'd need to select an existing channel for the Slack App (see the red box in the screenshot):
I have seen some other apps which do not require this selection of channel during installation. So my question is: What can I do to remove this selection from the installation process? Thanks so much again!
The option to choose Channel comes up when the developer have enabled 'Incoming Webhooks'
More details here :
https://api.slack.com/messaging/webhooks#create_a_webhook