HR software that fits seamlessly into your workflow
absence.io connects with Microsoft 365, Google Workspace, Slack, and more – for a smooth workflow without duplicate data entry. The open API also allows for custom integrations.
3,000+ companies trust absence.io every day
Seamless connectivity
SSO with Microsoft, Google & Okta – one login for everything. Convenient calendar sync.
Automated user management
New employees are added automatically, departing ones are removed automatically.
Open REST API
Build your own integrations whenever a ready-made one doesn’t exist yet.
GDPR-compliant & secure
Servers located in Germany, SSL-encrypted, ISO-certified.
Integrations in detail
Connect with the tools you already use
Every integration can be activated individually – you decide what makes sense for your team.
Microsoft 365
Single sign-on with your existing Microsoft account, automatic calendar sync with Outlook, plus user import and automated provisioning via Azure AD (SCIM).
One login for every tool, no duplicate calendar upkeep, and automatic on- and offboarding for IT.
Google Workspace
Company-wide connection to your Google domain including user import, individual SSO login without entering a password, and Google Calendar sync.
Login via the existing Google account, with absences automatically visible in the calendar.
Slack
Approve or decline absence requests directly in Slack, import users from Slack, and get a daily broadcast of current absences in the channel of your choice.
Approvals happen right where your team already works.
Microsoft Teams
An absence.io bot in Teams lets you approve or decline requests directly in chat, plus a daily team broadcast of current absences.
Same workflow benefit as Slack – for teams that run on Microsoft Teams.
Okta
Single sign-on via Okta plus automated user management (provisioning & deprovisioning) via SCIM.
Manage access rights centrally – important for IT security and compliance.
Calendar sync
Personal sync with Google or Outlook, plus ICS subscription links for teams, departments, locations, or the whole company – compatible with Google Calendar, Outlook, and iCal.
Maximum flexibility, even for people without their own absence.io account.
For developers
The absence.io API
- RESTful API (v2), JSON-based
- Authentication via OAuth 2.0 & Hawk
- Access to absences, users, remaining leave, departments, locations, and more
- API key can be generated directly in your profile
{
“filter”: {
“start”: {“$lte”: “2026-12-20”},
“end”: {“$gte”: “2026-12-31”}
},
“relations”: [“assignedToId”]
}
Customer stories
What our customers say about the integrations
“The MS Teams integration was recently released, which is another big plus.” The direct connection to the Outlook calendar also saves a lot of time in everyday work.
“The M365 integration also makes absence management easier” – absences appear directly in the Outlook calendar, with no duplicate upkeep.
Source: absence.io reviews on OMR · 4.5 out of 5 stars (84 reviews)
The most important HR processes for your company – anywhere, anytime.
All core features of smart HR management, always with you.
Frequently asked questions
Everything you need to know about absence.io’s integrations.
Are integrations included in all plans?
Is a DATEV integration included?
Can I use several integrations at the same time?
Does calendar sync also work with other calendar apps?
Does using the integrations cost extra?
Is my data safe when using integrations?
Your employee data is secure with us
SSL encryption
All data is protected with SSL encryption and the highest security standards, ensuring reliable protection against unauthorized access.
ISO-certified servers
All our servers and databases are ISO-certified and hosted exclusively in Germany.
Daily data backups
All data in absence.io is backed up daily and stored across multiple servers for maximum security.
