Hi @Fani Delliou,

Supervisors are assigned to each employee in their Personal Info, and taking this information, the Org chart is built. You can easily see who is the Supervisor of each employee there.

When setting an approval step, you can directly select Supervisor as the approver with no need to create an employee role for that, unless you want to certain employees in your organisation to approve the absence requests. 

This is an example from my test account:

If you set up the approval step for Supervisors to approve absence requests, María would be the one getting the approval request for Alfred, Matilda, Norman and Ivy. The configuration would be as follows:

You also have the option to set the approval step for Supervisor’s supervisor. In that way, employees (4) reporting to, for example, Alfred would have as approver still María. Alfred is their Supervisor but María is their Supervisor’s supervisor. The configuration is as follows: 

For more information about this topic, you can visit our Help Center article: Set up approval workflows. 

I hope this helps Fani! Please let me know if this is still unclear!

I hope you have a lovely day!

Best,

Zulema