Message SAP /CCIS/TAX206 - You are using interpreted rules (read the long text)

Diagnosis
The performance of generated rules is considerably better thaninterpreted rules. It is therefore recommended that you convert theinterpreted rules that you are currently using into generated rules.

System Response
Interpreted rules can still be executed, but system performance isconsiderably slower than with generated rules.

Procedure
You can use the following utilities for converting interpreted rulesinto generated rules:
Listing the Rules to be Converted
Execute Conversion