Which technical data properties must you define when rating the usage for a provider contract line item in SAP Convergent Charging? Note: There are 2 correct answers to this question.

Which technical data properties must you define when rating the usage for a provider contract line item in SAP Convergent Charging? Note: There are 2 correct answers to this question.
A . Account assignment
B. Description field
C. Service identifier
D. User technical identifier

Answer: C,D