The problem seems to be that in n8n, when I toggle on JSON/RAW, the UI switches to raw only inputs which is not playing well with the suggested headers list Klaviyo requires.
I tried to run it with JSON/RAW toggled off and input the headers under the list name/value and the body data as raw json but that didn’t work either.
I’m learning JSON and n8n in the moment and from what ChatGPT suggests in terms of workarounds, nothing is working.