Maintenance Management 9.2 Resource Notification between shops

Currently, the Email Notification that is triggered when a Resource is scheduled from one Shop (Biomed) to another shop (Facilities), the body of the email is blank contents.  This is the cause. In the record RS_ASSIGNMENT.ASSIGNMENT_ID Field WorkFlow event, function SetNotifyWrkValues is being called which will populate different field values from WM_WO_TSK, ASSET and WM_WO_HDR records. These values are assigned to the WM_NOTIFY_WRK record field values which will get populated in the email.
Values passed to WM_WO_TSK and WM_WO_HDR records to fetch appropriate values are RS_ASSIGNMENT.BUSINESS_UNIT, RS_ASSIGNMENT.WO_ID and RS_ASSIGNMENT.WO_TASK_ID values. If we check the records (WM_WO_HDR) WO Business unit value would be WA001 and RS Business Unit value (RS_ASSIGNMENT) would be 55000. As the value of RS Business Unit(55000) is being passed to WO Business unit and both values are different no rows are returned and the information in the email is blank.