B737 Undifferentiated or Other Model
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 1.7
Distraction; Human-Machine Interface; Situational Awareness; Workload
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance
Human Factors; Airspace Structure; ATC Equipment / Nav Facility / Buildings; Procedure
I missed handing off the data block Aircraft X to ZME sector M33.  With several other operations in progress (ILS approach to MWA requesting Visual Approach; vectoring other aircraft for conflict avoidance; etc.) I believe I was distracted from the task at hand (expecting an auto-hand off to the wrong stratum M33 rather than M25 as the feature is set to auto hand-off to only the middle stratum).  After realizing the data block for Aircraft X did not indicate a handoff to ZME (I had already switched Aircraft X to ZME M33); I called to verify with ZME M33 if they indeed had the handoff; to which the reply was affirmative; they did have radar contact and radio communications with Aircraft X.  Either I erred in not appropriately handing off the aircraft; or computer malfunction.  I have not reviewed the instant replay yet; and I'm not certain at this point.Set auto handoff feature  (for STL departures) to auto hand to next sector owning the airspace for either the entered interim altitude; or the indicated final altitude the aircraft is climbing to ( as opposed to the current auto handoff setting for STL departures of only to the middle stratum (M25).
A Controller issued a frequency change to an adjacent sector for an aircraft. The Controller then realized they had not handed off the data block and target of the aircraft.