Inclusion of the Number of Completed Sub-operations is conditional based upon the status in the C-MOVE response. The Number of Completed sub-operations specifies the number of C-STORE sub-operations generated by the requested transfer which have completed successfully.
A C-MOVE response with a status of:
Pending shall contain the Number of Completed Sub-operations Attribute
Canceled, Warning, Failure, or Success may contain the Number of Completed Sub-operations Attribute