"Request Action" button is broken right now, so posting here to request that the Beehiiv integration action Create Subscriber be updated to support other custom fields in Beehiiv. Right now it only support UTM Source, but I have other custom fields that need to be set (very common with beehiiv subscribers...).
I'll try to workaround with HTTP API integration, but would be nice to be more point-and-click...and less dig-into-api-docs...