With these stuck interactions it might be best to open a support case. As the support team will need to look at the interactions logs and figure out why it was sent to nowhere. Just provide them with example interactions, flows and queues where you are seeing this behavior and they should be able to dig in and take a look under the hood.
Original Message:
Sent: 07-10-2026 13:40
From: Nathan Manseau
Subject: Customer Replies to Interactions Getting Lost in Timeline
Hi Cameron,
Thank you very much for the detailed response.
I'm not too bothered about this being a limitation of LAR, I'm sure it would be preferred for my team if the interaction would route to the same sales person on subsequent replies. But, I'm just concerned about customer reply interactions going nowhere without much rhyme or reason as to why. According to my architect flows, they are successfully transferred to ACD but the information shown in the analytics workspace shows them as having been assigned to no one and not even remaining in queue to be assigned later.
Apologies, I misspoke when I lead with the mention of it not working with LAR.
I did not mean to attribute it to LAR so much as the use of a flow for routing instead of having the tied email address go straight to the queue.
Would you be able to provide any assistance or advice with solving these stuck interactions or should I open a support case?
Thank you,
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Nathan Manseau
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Original Message:
Sent: 07-10-2026 12:22
From: Cameron Tomlin
Subject: Customer Replies to Interactions Getting Lost in Timeline
Hello Nathan,
Thanks for the details. What you're seeing matches a documented limitation with Last Agent Routing (LAR) for email.
LAR does not work when emails are routed through an Architect email flow-it is only supported when emails are routed directly to a queue. Additionally, enabling Preferred Agent Routing on a queue disables LAR for that queue.
Your supported options are:
Enable Preferred Agent Routing if routing back to the last agent is not required.
Use Preferred Agent Scoring in your Architect flow by passing agent/score pairs to the Transfer to ACD action. This provides "sticky" routing behavior while remaining compatible with email flows.
Route emails directly to the queue instead of through an Architect email flow if Last Agent Routing is a requirement.
I would avoid attributing the "stuck in limbo" behavior directly to this documented limitation unless you've confirmed it through a support case. The documented limitation is simply that LAR is not supported when an Architect email flow is used.
Hope this helps!
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Cameron
Online Community Manager/Moderator
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