The star will regroup with Nick Offerman, Aubrey Plaza, Adam Scott, Retta, and Jim O' Heir, as well as show creator Mike Schur, on 17 September for the Town Hall fundraising event, which will also feature a special question and answer session.
The gathering has been organised by officials at the Democratic Party of Wisconsin, and will be open to donors of all levels.
"Anything you donate will be used to ensure that (President Donald) Trump loses Wisconsin, and thereby the White House," they state.
The hour-long digital bash will get underway at 8pm CT. For more information, visit: https://secure.actblue.com/donate/parks-and-rec-townhall?refcode=200917ParksRec&amount=27.
Poehler and her co-stars previously came together online in April, when they regrouped on video conferencing app Zoom to raise money for food charity Feeding America's COVID-19 Response Fund.
Meanwhile, it's not the only cast reunion representatives at the Democratic Party of Wisconsin have snagged - Robin Wright, Billy Crystal, Mandy Patinkin, Christopher Guest and Cary Elwes are among "The Princess Bride" stars taking part in a virtual table read at 7pm ET on Sunday night. Check that out here: https://secure.actblue.com/donate/princess-bride-reunion?refcode=url&amount=27.