The purpose of the Acknowledge WorkShiftMaster is to notify a systen that requested a change to an item object of the completion of the processing of that request. Is where the information that the BOD message carries is provided, in this case AcknowledgeWorkShiftMaster. The information consists of a Verb and one or more Nouns. The verb (Acknowledge) indicates the action to be performed on the Noun (WorkShiftMaster).