Unfortunately, I can't help with that as I am not familiar with n8n. The tools I'm aware of that seem similar to it, such as PipeDream, would allow for custom API calls, gathering return values and reusing them.
Hello both,
Hope you're doing well. TLDR: no, there isn't. An API client should indeed store the conversation sId to reuse (also note that at the time the GET /conversations, while accessible, is not documented or supported).
Have a nice evening.
