NAVICA

Engagements Now Have Comments and @Mentions

Every Karbon engagement now has threaded comments with @mentions and an audit trail, so the context on a stalled engagement lives on the engagement itself.

By Max Ducharme

Illustration of a rainy cobbled square at evening, with glowing lines of light running from the doors of three houses to a stone well.
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As of Karbon’s October 26, 2026 release.

What changed

Every engagement now has threaded, rich-text comments with @mentions, alongside an audit trail of the steps it has gone through. If you mention someone who doesn’t have access to the engagement, Karbon asks before granting it.

The Activity and Comments tab on a Karbon engagement. It logs that Max created the engagement and sent it to the client, then that the status changed to Awaiting Client. Below that, Max’s comment asks a colleague to follow up later in the week.

What it changes day to day

Conversations about an engagement used to happen in email, in chat, or in someone’s head. Now the context lives on the engagement itself.

Invoices already work this way, and it’s especially useful there for following up on open AR. Now the same idea applies at the opposite end of the revenue flow.

Brooks and I talk through this one in the October episode. More from this release: the October release roundup. Source: Karbon release notes, October 26, 2026.

Max Ducharme ran an accounting firm for five years. In that time, revenue more than doubled, and average revenue per employee rose from $89,000 to $150,000. He taught himself Python to build the integrations the firm needed. Today he builds tools that solve the problems accounting firms face now. He is a Six Sigma Black Belt and co-hosts the Working Theory podcast.

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