Connectors / Integration
Connect 15Five and Slack to Build a Culture of Continuous Feedback
Automate performance management workflows and get real-time employee engagement insights directly inside Slack.
15Five + Slack integration
15Five and Slack are two of the most widely adopted platforms in people-first organizations — one handling structured performance management, the other running daily team communication. When the two operate separately, check-in reminders go unnoticed, recognition gets buried in dashboards, and managers miss early signals about how their teams are doing. Connecting 15Five with Slack through tray.ai brings performance conversations into the flow of everyday work.
Most employees live in Slack all day, yet 15Five's data — weekly check-ins, OKR updates, high fives, pulse scores — sits locked in a separate platform that people only visit when they're explicitly reminded. That gap leads to lower check-in completion, slow manager responses, and missed chances to recognize good work in the moment. Integrating 15Five with Slack via tray.ai lets HR teams and people managers surface timely nudges, recognition notifications, and performance alerts where employees already are. Check-in rates go up, managers respond faster, and performance conversations start to feel like a natural part of work rather than an interruption — without anyone needing to open another tab.
Automate & integrate 15Five + Slack
Automating 15Five and Slack business processes or integrating data is made easy with Tray.ai.
Use case
Automated Weekly Check-In Reminders
When a new 15Five check-in cycle opens, tray.ai sends a personalized Slack DM to each employee reminding them to complete their weekly reflection. The message includes a direct deep-link to their 15Five check-in, cutting the friction that kills completion rates. If a check-in is still missing past a configurable deadline, the reminder escalates to their manager.
- Increase weekly check-in completion rates across the organization
- Cut reliance on email reminders that often go unread
- Give managers real-time visibility into who has and hasn't checked in
Use case
High Five Recognition Posted to Team Channels
When an employee receives a High Five in 15Five, tray.ai posts a celebration message to a designated Slack channel — #recognition or the team's own channel. Peer-to-peer recognition reaches a wider audience instead of sitting quietly in a dashboard. Custom message formatting keeps the post feeling native to Slack.
- Make peer recognition visible to the whole team, not just the recipient
- Build a culture of appreciation that employees actually see every day
- Encourage more frequent recognition by making it publicly rewarding
Use case
Manager Alerts for Low Pulse or Wellbeing Scores
When a 15Five pulse or wellbeing score drops below a defined threshold, tray.ai sends a private Slack notification to the relevant manager, prompting a timely 1-on-1 conversation before things get worse. Alerts can also route to HR business partners for cases that need escalation.
- Catch early signs of disengagement before they become retention problems
- Give managers a chance to respond quickly and with some context
- Shift HR from reactive to proactive on employee wellbeing
Use case
OKR and Goal Update Notifications
When employees update OKR progress or complete a goal in 15Five, tray.ai posts an update to the relevant team or project Slack channel. The whole team stays current without anyone needing to log into 15Five separately. Managers get a scheduled digest of their direct reports' goal activity.
- Keep teams current on goal progress without extra meetings
- Celebrate milestone completions publicly to reinforce accountability
- Save managers time by delivering goal updates in Slack rather than requiring login
Use case
New 1-on-1 Agenda Item Notifications
When a direct report adds a talking point or question to an upcoming 1-on-1 agenda in 15Five, their manager gets an instant Slack notification. Managers can prepare thoughtful responses in advance instead of reading the agenda cold. Employees know their input landed.
- Improve how prepared managers are for 1-on-1 conversations
- Reduce the chance of agenda items getting skipped or forgotten
- Build trust between managers and direct reports through responsiveness
Use case
Review Cycle Kickoff Announcements
When a performance review cycle launches in 15Five, tray.ai sends a structured announcement to designated Slack channels covering deadlines, expectations, and links to relevant resources. HR teams can customize the message and target specific departments. Follow-up reminders go out automatically as deadlines get closer.
- Get every employee informed about review cycles the moment they launch
- Cut the manual effort HR spends broadcasting cycle communications
- Drive higher participation through timely reminders that don't require anyone to remember to send them
Challenges Tray.ai solves
Common obstacles when integrating 15Five and Slack — and how Tray.ai handles them.
Challenge
Low Check-In Completion Rates Due to Context Switching
Employees spend most of their day in Slack and often don't make it over to 15Five to complete their weekly check-ins. Participation drops, and the performance program loses value before HR even notices the trend.
How Tray.ai helps
tray.ai sends timely, personalized Slack reminders with direct deep-links to each employee's 15Five check-in, removing the friction of switching tools and improving completion rates without manual HR follow-up.
Challenge
Recognition Stays Hidden Inside 15Five
High Fives awarded in 15Five are only visible to users who log in to the platform. Most don't. That limits the cultural impact of peer recognition and quietly reduces the incentive to give it.
How Tray.ai helps
tray.ai mirrors 15Five recognition events to Slack channels in real time, so High Fives get celebrated publicly in front of the whole team rather than sitting unread in a dashboard.
Challenge
Delayed Manager Response to Employee Distress Signals
Low pulse scores and concerning check-in responses can sit in 15Five for days if managers aren't actively checking the platform. By the time someone notices, an at-risk employee has already felt unsupported for too long.
How Tray.ai helps
tray.ai monitors 15Five scores in real time and sends immediate, private Slack alerts to managers when thresholds are crossed, giving them a chance to reach out before the situation gets harder to address.
15Five Check-In Reminder to Slack DM
15Five 
Slack Sends a personalized Slack DM to each employee when a new 15Five check-in cycle opens, including a direct link to their pending check-in. A follow-up message goes to managers listing direct reports who haven't completed their check-in by the deadline.
15Five High Five to Slack Recognition Channel
15Five Slack When a new High Five is awarded in 15Five, tray.ai formats and posts a celebratory message to a configured Slack channel, tagging the recipient and including the recognition message and any associated company values.
Low Pulse Score Alert to Manager via Slack
15Five Slack Monitors 15Five pulse scores and sends a confidential Slack notification to the relevant manager when a direct report submits a score below a defined threshold, prompting timely follow-up.
15Five OKR Progress Update to Slack Team Channel
15Five Slack When an employee updates goal or OKR progress in 15Five, tray.ai posts a progress update to the team's Slack channel, keeping everyone current without requiring a login to 15Five.
Review Cycle Launch Announcement to Slack
15Five Slack Broadcasts a structured performance review cycle announcement to specified Slack channels when a new review cycle is activated in 15Five, including deadlines and resource links. Staged reminders go out as deadlines approach.
Outstanding Manager Review Reminder via Slack
15Five Slack Identifies 15Five check-ins submitted by employees but not yet reviewed by their manager, then sends an automated Slack reminder to the manager to complete their response within the expected window.
How Tray.ai makes this work
15Five + Slack runs on the full Tray.ai platform
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Learn more →Agent Builder
Build AI agents that read, write, and take action in 15Five and Slack — with guardrails, audit, and human-in-the-loop.
Learn more →Agent Gateway for MCP
Expose 15Five + Slack actions as governed MCP tools — observable, rate-limited, authenticated.
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