# Welcome to Open Core HR

An introduction to Open Core HR for employees, managers, HR teams and installers.

Open Core HR is your company's people and operations app. Employees, managers and HR teams use one module-based workspace. Personal records and requests appear alongside the team and company pages your permissions allow.

## Mobile application

Use **Open Core HR** for HR tasks and team communications with one company
account. **Home** and **Work** provide HR workflows. **Connect** provides chat,
calls, feed and Microsoft 365 mail. Its **More** area includes calendar when mail
is enabled, contacts, notifications and profile/presence settings.

Availability depends on your company's selected mobile features, backend modules,
permissions and provider setup. Attendance-device verification follows your
attendance policy. If you previously used the separate Communications app, sign
in to HR; ask your administrator to grant HR app access if necessary. Conversation
history remains on the same company server.

Your organization supplies and configures the app; this guide does not imply
public app-store availability.

![The Today tab of the Open Core HR mobile app.](https://media.czappstudio.com/screens/mobile/today/light-9532238cee-1206.webp)

## Choose your starting point

- **Employees:** [First login](https://czappstudio.com/docs/getting-started/first-login) and [Personal work](https://czappstudio.com/docs/self-service/overview).
- **HR teams and managers:** [The HR & Admin guide](https://czappstudio.com/docs/administration/overview).
- **Installers:** the [installation guide](https://czappstudio.com/docs/installation/overview).

## Roles and optional modules

This public manual covers documented product features. Your company chooses which modules to enable and permissions to grant. Reading a page does not grant access to its feature.

If a screen is missing, ask your HR administrator to check your access and module enablement. Microsoft 365 features require your company's configured tenant and integration.

## Online help

This manual is published on the [CZ App Studio](https://czappstudio.com) website and does not require an application login. Use **Documentation** in the application footer to open it.