Despite having formal representation in only two town halls, Aliança Catalana has established a tactic for the municipal election pre-campaign. Party members attend municipal plenary sessions, even in towns where they have no representation, carrying organization folders and preparing for their future electoral battles.

This "pre-campaign" is coordinated by sending agendas and minutes of plenary sessions to the regional leadership. In some areas, such as Vallès Occidental, there is a "plenary session manager" responsible for analyzing motions and identifying content for denunciation on social media, the party's main platform.

The party has publicly criticized decisions such as an ex-councillor speaking in Spanish during a session in Sant Cugat del Vallès or the election of a Muslim ombudsman in Terrassa. These criticisms, often amplified by executive members like the president of Vallès Occidental, aim to channel public discontent and "incite public opinion by pointing out how poorly all parties perform".

The directive for plenary session attendees is clear: do not intervene, do not speak with councillors from other parties, and maintain a "positive" attitude of attention and interest. The goal is for their presence with Aliança Catalana's folders to be visible in all municipalities, paving the way for future elected officials.

In some exceptional cases, such as in Torelló, a party representative has been allowed to speak. However, the general rule is non-intervention and limited contact with other political groups, reinforcing an image of distance and opposition.