Views Sort Criteria: Sort by Taxonomy terms I have a view that lists team members of a country that are referenced by an Entity reference field.

Now these team members can have different functions and job titles. I assign them through a taxonomy vocabular called "Functions" with the following terms:
- Office Head
- Partner
- Client Partner
- Consultant
- etc.

Usually team members only have one function but the Office Head always has two (Office Head and e.g. Partner). 

When I now choose the above taxonomy field as a sort criteria, the office head always appears twice since it has two taxonomy terms assigned. But I only want the office head to show up only once. 

Any suggestions how to do this would be greatly appreciated.
Check out Views Distinct module. Once you enable this module, for every field there will be a setting Views Distinct Settings where you can choose to filter repeats.