Hello, @Yurie Ikura
I could not find a specific Genesys Cloud release note mentioning this change in behavior.
Based on the scenario, this looks more like a validation change or enforcement of the expected consult transfer behavior. In Genesys Cloud, a consult transfer is normally intended to transfer an existing customer interaction to another user, queue, or external contact.
In the example described, Agent A is placing an outbound call to the queue, and Agent B answers it as an ACD interaction. From Agent A's side, there may not be an external customer participant in the conversation. Because of that, Genesys Cloud may now block the consult transfer with the message:
Consultation not allowed. No external customer detected on call.
The reason Agent B can still perform the consult transfer may be because, from Agent B's perspective, the call is being handled as an ACD interaction from the queue side. Even if the original caller is another Genesys user, Agent B is the receiving agent on the routed interaction, so the system may treat that side of the conversation differently.
I agree that the behavior can be confusing, especially if it worked before September 2025. Since there does not seem to be a clear public release note for this specific change, I would recommend opening a case with Genesys Customer Care.
Customer Care should be able to confirm whether this is expected behavior, a product change, or a regression.
As a workaround, depending on the business need, you may need to use a conference/add participant option or have the receiving-side agent initiate the external consult, since that side appears to be accepted by the current behavior.
------------------------------
Arthur Pereira Reinoldes
------------------------------
Original Message:
Sent: 05-29-2026 00:54
From: Yurie Ikura
Subject: External consult transfer is blocked while agents are on a call with each other
When two agents are on a call, if the calling-side agent attempts to perform a consult transfer to an external number, the following message is displayed and the consult transfer is blocked:
Message: "Consultation not allowed. No external customer detected on call."
However, the customer states that before September 2025, they were able to perform an external consult transfer using this method.
We reviewed the 2025 and 2026 release notes, but could not find any mention of this update.
Do you have any information about the update that caused this message to appear and the consult transfer to be blocked?
[Detailed Steps]
1. Agent A, from "Agent Workspace," places an outbound call on behalf of the queue, calling the queue.
2. Agent B answers from within the queue, and a call is established between A and B.
3. Agent A clicks Consult Transfer in "Agent Workspace."
4. Agent A enters the external destination number in the text box and presses Enter.
Result: Before 2025/9, the consult transfer succeeded (now it fails).
Additionally, even now, in step 3 above, if Agent B (the receiving-side agent) initiates a consult transfer to an external number, the message is not displayed and the consult transfer succeeds.
Even though it remains true at that point that no external customer is participating in the call, I don't understand the rationale for why it is allowed when Agent B initiates the consult transfer.
#Routing(ACD/IVR)
------------------------------
Yurie Ikura
NA
------------------------------