The accord was agreed on 28 February 2023 by party representatives Marcin Kierwiński (KO), Dariusz Wieczorek (NL), Piotr Zgorzelski (KP-PSL) and Jacek Bury (Poland 2050).

The agreement assumed close cooperation regarding the conduct of the election campaign; in each electoral district for the Senate of Poland, the constituent parties backed one common candidate.

The team's task is to divide the electoral districts into individual parties to the agreement, prepare proposals for candidates for Senators of the Republic of Poland and develop a concept for conducting an election campaign.

Despite refusing to join the pact, locally the German Minority Electoral Committee dropped out and endorsed Senate Pact 2023 candidates as long as they pledged to "actively expand regional self-government, develop the integration of the European community and work towards restoring German as a national minority language".

Jan Maria Jackowski and Józef Zając, former members of the Law and Justice parliamentary group have been informally endorsed and the Pact did not stand in their constituencies.