CalDAV integration

1Tool | categories

CalDAV is a network protocol that makes it possible to access and synchronize calendar files via WebDAV (

Data needed for setup

servers =
username = mail address of 1Tool-Accounts
password = password of 1Tool-Accounts

configuration in 1Tool

Before the synchronization of the calendars can be set up, it is necessary to select the calendar categories for synchronization in the 1Tool necessary.
This setting can be found under Organization / Calendar / Categories .
Edit the category and check the box CalDAV set sync.



Settings / Mail, Contacts, Calendar / Add Account / Other / Add CardDAV Account


Plugin for synchronization with Outlook

To sync your 1Tool calendar in Outlook, we recommend the Outlook plugin "Outlook CalDav Synchronizer" (

After installing the plugin and restarting Outlook, you will find the menu item "CalDav Synchronizer".
Please open “Synchronization Profiles” there.

1Tool | CalDav Synchronizer

Add new profile:

1Tool | CalDav new profile

The correct profile type is "Generic CalDAV/CardDAV".
Confirm your selection with OK".

  1. Choose a profile name.
  2. Choose an empty calendar folder or create a new one.
  3. The DAV URL is "".
  4. Please enter yours here 1Tool access data to; email = user
  5. Click “Test or discover settings” to continue setup.
1Tool | CalDav profile

Now you will see all calendar categories 1Tool shown that are enabled for synchronization.

You can always select ONE calendar category per profile.
Confirm your selection with OK".

1Tool | CalDav calendar category

If the setup was successful, the following message appears:

1Tool | CalDav message

The DAV URL is now completed after your selection:

1Tool | CalDav URL

To complete the setup, Outlook should be restarted once.
Depending on the setting, the plugin will now automatically synchronize the desired calendar category.
Alternatively, you can also trigger the synchronization manually.

1Tool | CalDav manual synchronization