Does anyone know of a way to add interactive buttons to a slack channel messages that are created using the Zapier slack channel message integration?
David here, from the Zapier Platform team. Sorry to be the bearer of bad news, but that's not currently possible. Because of the way button interactions are handled (centrally, to a single url for all buttons created with Zapier), we haven't come up with a good way for users to add buttons to their messages that would be in any way useful.
We track all feature requests that come in through tickets, so if you'd like to voice your support and get notified if/when this does get implemented, I'd suggest emailing in to [email protected].