Starting out with Azure logic apps and i have started off with Slack messaging. Logic Apps seems to have a few pre-built steps in relation to Slack , one of them is to post a message to a slack channel and this seems to work fine. I have been trying to get it to post a block message ( its the fancier Slack messages that can have buttons etc in them) but i have had no luck – it seems to just be posting the actual json text.