Commercial Fixed Wing
Situational Awareness; Training / Qualification
Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Environment - Non Weather Related; Human Factors
Upon arrival; as the A FA; I made disarming announcement; disarmed door and cross checked my door (L1) and the R1 door.  I then waited for jet bridge and CSA; gave thumbs up; waited for knock; then opened door. As I was opening I heard the interphone 'ring.' The D answered it. After I stepped away from door to let guests off; I asked the D what the back FAs needed. The D stated that they were relaying that the AFT doors were disarmed. I had forgotten to call them.I take full responsibility. I rarely fly A; and due to COVID; I haven't been on an airplane in almost 2 months. I was trying to go slow and be cautious. But missed that important step.
Air carrier Flight Attendant reported forgetting to notify other FAs that the AFT doors were disarmed. Flight Attendant stated not having been in an airplane for an extended time due to the COVID-19 pandemic contributed to the event.