Your team already lives in Slack. Your customers live in HubSpot Conversations. BackReply removes the tab-switching between them.

When a customer starts a conversation or sends a message in your HubSpot inbox, BackReply posts it into the Slack channel you choose as a threaded card – with the customer's name, company, inbox, channel, and conversation status attached. Your team replies in that Slack thread, and the reply is delivered to the customer through HubSpot, attributed to the correct agent. Screenshots and file attachments travel in both directions.

Three problems this solves:

Seat cost. Engineers, product managers, and founders can help a customer without a HubSpot seat. Only the agents who need to be attributed by name have to be mapped to a HubSpot user – everyone else can contribute to the thread.

Context switching. Assign, reassign, close, reopen, and leave internal notes from buttons on the Slack card. A Slack message that starts with an @mention becomes a private HubSpot comment instead of a customer-facing reply, so internal discussion never reaches the customer.

Conversations going quiet. Notification rules decide which Slack channel each conversation lands in. Smart follow-up nudges re-surface threads where a customer is still waiting, so nothing gets buried under channel traffic.

BackReply runs on HubSpot's Conversations API with per-portal OAuth, verified webhook signatures, and duplicate-send ledgers in both directions — an inbound message is never posted to Slack twice, and a reply is never sent to a customer twice.