The CS team & account book.
Who owns what, the Q2 2026 reshuffle into Sebastian, and how Customer Success coordinates day to day in Slack.
Who's on the team
Three Customer Success Managers plus Thomas. Adriana and Sebastian work from Colombia (America/Bogotá); Nick is on US Eastern time. Coverage spans US, Canada, UK/EU, and LATAM accounts.
Adriana Castaño
Nick Jackson
Sebastian Yidi
Thomas
Account ownership & the Q2 2026 transition
Q2 2026 is a major book reshuffle: 19 completed transitions consolidate into Sebastian Yidi as Adriana, Nick, and Thomas hand accounts off, while Nick and Adriana each retain an active book of roughly a dozen. The canonical log is the CSM Account Transitions Q2 2026 sheet (account, current owner, org ID, active individuals, status, new CSM). A representative slice:
| Account | From | To | Active individuals | Status |
|---|---|---|---|---|
| Wise | Nick | Nick | 9,192 | Completed |
| Cornerstone OnDemand | Nick | Nick | 3,379 | Completed |
| Spring Health | Nick | Nick | 1,502 | Completed |
| PestCo | Thomas | Sebastian | 1,062 | Completed |
| Niche | Nick | Sebastian | 270 | Completed |
| Secure Code Warrior | Nick | Sebastian | 191 | Completed |
| Yes& | Adriana | Sebastian | 174 | Completed |
| DarkStar Intelligence | Thomas | Sebastian | 128 | Completed |
| Flowcode | Adriana | Sebastian | 92 | Completed |
| Duarte, Inc. | Adriana | Sebastian | 89 | Completed |
| Muse Group | Adriana | Adriana | 795 | TODO |
| Nexpring Health | Adriana | Adriana | 428 | TODO |
| ChowNow | Adriana | Adriana | 220 | TODO |
| AutoCamp Hospitality Group | Adriana | Adriana | 300 | TODO |
| Hiro Systems | Adriana | Adriana | 16 | TODO |
Adriana retains an active book — including Muse Group, Nexpring Health, ChowNow, AutoCamp, Fishman Flooring, and Aquestive — still marked TODO in the log. The detail behind the recent moves — sentiment, open items, risk — lives on Customer handovers.
Slack: where CS coordinates
Primary channel: #customer-success (C01NHGUSQPN). The team user-group tag @customer-success (<!subteam^S03ED2LAK96>) is used to reach all CSMs at once. Representative recent usage:
- Team calls & standups — Adriana, “@customer-success guys I’ll be late for our call, calling LS Power now” (Jun 5).
- Accounts-receivable discipline — Thomas, “@customer-success please take a look at your open invoice and try to get ETAs on all overdue invoices tomorrow” (May 31).
- Tooling setup — Thomas, “can you all make sure that you have Zoom set as the default in cal.com” (tagging Cameron + the team, Jun 1).
- Cross-functional pings — Product/Eng tag the team for client-facing changes: Kevin Pierce announcing the Insights Report upgrade (Jun 2); Cameron Soregaroli filtering #product-bulk-swag-logs to client-only activity.
- Handover announcements — every account move is posted here, tagging the new CSM, with the handover PDF linked.
Quoted examples verified against the live #customer-success history (channel C01NHGUSQPN) on 2026-06-07.
Adjacent channels CSMs watch: #support (client tickets routed via Linear), #bulk-swag-so-po and #product-bulk-swag-logs (live order + client-activity signals).
Source: Slack user directory + #customer-success (C01NHGUSQPN), the CSM Account Transitions Q2 2026 sheet, and the CSM Account Handovers Drive folder. Active-individual counts as recorded in the transitions sheet.