I am trying to set up the messaging system but the link to the documentation does not work. Please can you fix or send me the correct link to the page.
We're constantly updating our documentation and guides in the scope of this new blocks editor and it is possible that a similar guide is added in the future again, but, I'm afraid, I don't have a time estimate to share at the moment.
Thank you for bringing this forward and I've passed on the information about this link to the concerned team so that it can be removed.