A comprehensive HR software platform for small and medium businesses with employee management, time tracking, and benefits administration.
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Business messaging platform for teams with channels, direct messages, file sharing, and extensive app integrations.
Full ReviewThe BambooHR to Slack workflow connects human resources management with team communication, automating employee lifecycle notifications that keep managers and teams informed. BambooHR handles employee records, time-off management, onboarding, performance reviews, and HR reporting, while Slack serves as the communication layer where teams celebrate new hires, coordinate time-off coverage, and stay informed about organizational changes.
BambooHR integrates with Slack through Zapier and Make (Integromat), as there is no native direct integration between the two platforms. BambooHR provides a well-documented API and webhook support that Zapier uses to trigger automations based on HR events. Common triggers include new employee added, time-off request approved, employee anniversary, and custom field changes. For simpler use cases, BambooHR's email notifications can be forwarded to Slack channels using Slack's email-to-channel integration.
The business outcome is HR transparency and team coordination. When a new hire joins, the whole team knows their name, role, and start date through Slack — creating a welcoming culture. When a team member is on PTO, their teammates see it in Slack without checking a separate calendar. When an employee anniversary or birthday comes up, the team can celebrate. These automated touchpoints build culture and prevent the coordination gaps that frustrate both managers and employees.
| Step | Tool | Action | Connection to Next Step |
|---|---|---|---|
| 1 | BambooHR | Employee added, time-off approved, anniversary reached, or status changed | Zapier triggers Slack notification based on BambooHR event |
| 2 | Slack | Team receives notification, coordinates coverage, celebrates milestones | Team takes action (welcome new hire, arrange coverage, celebrate) |
In Zapier, set up BambooHR as the trigger app. Available triggers include: "New Employee" (fires when a new employee record is created), "Updated Employee" (fires when specific fields change), "New Time Off Request" (fires when time-off is requested), and "Time Off Request Status Changed" (fires when a request is approved or denied). Authenticate with your BambooHR API key, which you can generate in BambooHR under Account > API Keys.
Create separate Zaps for different HR event types. For new employee announcements, trigger on "New Employee" and route to #general or #new-hires. For time-off notifications, trigger on "Time Off Request Status Changed" with a filter for "Approved" status, and route to the employee's team channel. For anniversaries and birthdays, use Zapier's Schedule trigger to check BambooHR daily for upcoming dates and post reminders to #celebrations.
Configure the data extracted from BambooHR for each Zap. For new employee notifications, pull: first name, last name, job title, department, start date, reporting manager, work email, and (optionally) a photo URL if stored in BambooHR. For time-off notifications, pull: employee name, time-off type (vacation, sick, personal), start date, end date, number of days, and approving manager. For anniversaries, pull: employee name, hire date, years of service, department, and job title.
Create Slack channels for HR-related notifications. Recommended channels: #new-hires (new employee announcements with bio and role), #time-off (approved PTO notifications for team coordination), #celebrations (birthdays, work anniversaries, promotions), and #hr-updates (company-wide HR announcements like policy changes or benefits updates). For department-specific PTO tracking, create channels like #eng-time-off, #marketing-time-off to keep notifications relevant.
Format Slack messages to be informative and engaging. For new hire announcements, use Slack Block Kit formatting: include the employee's name as a header, their photo (if available), role and department, start date, reporting manager, and a brief "fun fact" or introduction (if collected during onboarding). Add a welcome message encouraging team members to introduce themselves. For anniversaries, include years of service and a celebration emoji. For PTO, keep it simple: name, dates, and number of days.
Set up Slack reminders and workflows that complement BambooHR notifications. Create a Slack Workflow that runs every Monday morning posting the week's PTO schedule to each team channel — a formatted list of who is out, when they return, and any coverage arrangements. This requires a Zapier Zap that queries BambooHR's time-off API weekly and formats the upcoming out-of-office schedule into a clean Slack message.
From BambooHR to Slack: new employee details (name, title, department, start date, manager, photo, location), time-off data (employee name, type, dates, duration, status), anniversary and birthday dates, employee status changes (promotions, department transfers, terminations), and custom field updates. Data flows via Zapier with a 1-15 minute delay depending on Zapier plan tier.
From Slack to BambooHR: this is primarily a one-way notification flow. However, some teams use Slack Workflows to collect structured data (like PTO requests or employee feedback) that is then pushed to BambooHR via Zapier. For example, a Slack form for "Request Time Off" could create a time-off request in BambooHR, though most teams prefer using BambooHR's native interface for this to maintain proper approval workflows.
Remote-first company culture building: A 150-person remote company uses the new hire announcement flow to introduce every employee to the whole organization. Each announcement includes a fun fact submitted during onboarding, a link to their LinkedIn, and their time zone. Team members react with welcome emojis and share helpful resources in the thread. This creates connection in a distributed workforce where hallway introductions do not happen naturally.
Engineering team sprint planning: The engineering team's #eng-time-off channel receives all approved PTO notifications for engineering staff. During sprint planning every two weeks, the scrum master checks the channel to see who will be out during the upcoming sprint and adjusts capacity accordingly. The weekly Monday PTO summary provides a quick reference for daily standups.
Manager coaching and retention: When an employee reaches their 1-year or 2-year anniversary, the Slack notification goes to both #celebrations (public) and a DM to their manager (private). The manager DM includes a prompt: "It is [employee]'s [X]-year anniversary this week. Consider scheduling a career development conversation and celebrating their contributions." This simple reminder helps managers invest in retention at natural milestone moments.
HR teams manually emailing new hire announcements spend 15-20 minutes per announcement (drafting, collecting info, formatting, sending to the right distribution list). Automated Slack notifications reduce this to zero for the HR team and reach the team faster. Managers checking BambooHR for team PTO spend 5-10 minutes daily — the weekly Slack summary eliminates this, saving 25-50 minutes per manager weekly. Anniversary and birthday tracking that HR handles manually (checking dates, sending reminders to managers) saves 1-2 hours weekly for HR. For a 100-person company, monthly savings: 15-25 hours across HR and management.
Gusto offers a native Slack integration for payroll, benefits, and basic HR notifications. Rippling provides a combined HR and IT platform with Slack integration for employee lifecycle management. Bob (HiBob) has a native Slack integration with richer HR notification features. For enterprise teams, Workday integrates with Slack through Microsoft Power Automate or custom API connections. Personio (popular in Europe) integrates with Slack via Zapier with similar capabilities. For teams wanting purely Slack-native celebrations, tools like Donut, Bonusly, and HeyTaco provide peer recognition and celebration features that complement BambooHR data.
