Which of the following must be assigned when you create an operation in an inspection plan?
When creating an operation in an inspection plan (transaction QP01/QP02), certain fields are mandatory to define the operation's purpose and execution in SAP S/4HANA QM:
Control Key (B): The control key is a mandatory field in the inspection plan operation. It determines the operation's behavior, such as whether inspection characteristics are required, whether it's a milestone, or if it triggers specific actions (e.g., QM01 for quality inspection). Defined in Customizing (SPRO > Quality Management > Quality Planning > Inspection Planning > Define Control Keys), it ensures the system knows how to process the operation. Without it, the operation cannot be saved.
Activity Type (A): This is relevant for cost accounting (e.g., in Production Planning or QM orders) but is not mandatory in the inspection plan operation itself.
Work Center (C): The work center (e.g., a test station) is optional in QM inspection plans unless specified by the control key. It's common but not universally required.
Standard Text Key (D): This provides predefined descriptions for operations but is optional and not required to create an operation.
Thus, 'Control key' is the correct answer, as it's the only mandatory assignment in standard SAP QM for inspection plan operations.