Assignment rules:
Workspace API token.
Include abilities external-api:read and/or external-api:write.
email, chat 500open, closed low, normal, high, urgent User or agent UUID to assign. Set null to unassign. Must belong to the same workspace. For chat, agent assignment is limited to the conversation's original chat agent. For email, agent assignment is limited to the workspace active email agent.
user, agent Conversation created
email, chat open, closed low, normal, high, urgent User or agent UUID to assign. Must belong to the same workspace. For chat, agent assignment is limited to the conversation's original chat agent. For email, agent assignment is limited to the workspace active email agent.
user, agent