# The Attendances and Projects v1 API stops working

Calls to /v1/company/attendances* on Personio API stop working on January 31, 2027.

On January 31, 2027, the attendance and projects v1 endpoints will stop working. Calls to /v1/company/attendances* will fail after this date. Integrations using these v1 endpoints must move to their v2 versions to maintain service.

- API: Personio API (api.personio.de)
- Kind: Endpoint removal
- Takes effect: January 31, 2027
- Calls after that day: fail
- Calls it hits: `/v1/company/attendances*`
- Source: [Announcement](https://developer.personio.de/changelog/deprecation-of-attendances-and-projects-v1-endpoints)
- Page: https://www.okapi.bot/providers/personio-api/breaking-changes/the-attendances-and-projects-v1-api-stops-working/

## What to use instead

Migrate to the v2 Attendance Periods API at /v2/attendance-periods, which uses UUID ids, explicit break periods, and skip_approval=true to skip approval. For projects, use the v2 Projects API at /v2/projects with status=ACTIVE/ARCHIVED instead of active.

## Personio API's words

> The attendance and projects v1 endpoints will be deprecated in favor of their v2 versions with the final deprecation date set for Jan 31, 2027. All integrations using these v1 endpoints must migrate to the v2 APIs to ensure continued service