Hello - I’ve hired an external support and they have told me that Slack Block Builder module does not support functions.
My interpretation of that on the block builders is that the JSON with the ifempty function is part of Make. It would then be formatted in Make before passing through to Slack Block Builder.
If the functions are set up correctly, then they should appear in Slack without an error.
I’ve made a Loom on the error: Troubleshooting Slack Errors 🛠️ | Loom