Can we classify Customer site as "SEZ" and write rule to apply 0% tax

Summary:

I have assigned Fiscal classification at customer site level "SEZ_CUSTOMER" and wrote rule to apply 0% tax if Party fiscal classification is "SEZ_CUSTOMER". But it is not working.

Content (required):

NA

Version (include the version you are using, if applicable):

23C

Code Snippet (add any code snippets that support your topic, if applicable):

PFA