Unassigns the sticky agent from the conversation session.

IMPORTANT. Agent or conversation session must be provided, not both. If an agent indentifier is provided, the agent will be deleted from all conversations and the conversation indentifier will be ignored

To identify the target of the unassignment, you must provide either:

• conversationSessionId (highest priority)
• contactId (lowest priority)

The sticky agent can be identified using one of the following fields:

• agentId (highest priority)
• email
• webUserId (lowest priority)

If multiple agent identifiers are provided, only the one with the highest priority will be applied.