Have you previously created an external employee (without an employment contract) to grant access to your company's calendars, and the collaboration has ended so you want to revoke this access? You can do this as follows:

Select the external employee by clicking on them

Then click on the "Employment" tab and click on the pencil icon, add an end date to the employment and click "Save".

Note! When entering the end date, it must correspond to today's date.

After adding an end date, you should no longer see the external employee in your employee list from that date onwards.