Skylane 182/RG Turbo Skylane/RG
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 10
Troubleshooting; Situational Awareness; Human-Machine Interface; Distraction; Confusion; Workload
ATC Issue All Types; Airspace Violation All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued New Clearance
Airspace Structure; Company Policy; Procedure; Human Factors; Environment - Non Weather Related
Working arrival wall combined. Aircraft X inbound to ZZZ was vectored around weather to get the Visual Approach for ZZZ. I failed to make a point out to Departure Controller for the inbound aircraft as required and he was cleared for a Visual Approach and shipped to ZZZ Tower. I issued traffic for a VFR aircraft off the field before shipping to Tower. Departure Controller approved automated release for Aircraft Y off ZZZ. Aircraft departed ZZZ but was not on an IFR Beacon but instead on a 1200 code. Aircraft remained on 1200 code and was shipped to Departure Controller. This was in fact the VFR aircraft that I issued traffic for to Aircraft X prior to switching to Tower. Departure Controller assigned new beacon code and then saw the IFR inbound I had already switched to the Tower. Departure Controller immediately issued an Eastbound turn away from the other aircraft. I completely forgot to make the point out or hand off to the Departure Controller. For the last 15 months [the] schedule we worked combined so often I just didn't remember at that moment that ZZZ was not in my sector at the time. I needed to make the point out or hand off and be more aware of the room configuration and this event could have been avoided. This was just an accidental mental lapse in realizing the configuration of the radar room at the time.
A TRACON Controller reported they forgot to handoff an aircraft to Departure Controller.