Such conflict usually represents an obstacle to admission to the group or a reason for expulsion.
Some restrictions come in the form of ineligibility, disqualifying a candidate (for example, as defined by the Incompatibility Clause of the US Constitution or House of Commons Disqualification Act 1975 in the UK).
In other cases, the candidate with a potential incompatibility is allowed to run in the election, yet in case of an electoral success has to make a choice between their occupation and membership.
[1] The lists of occupations prohibited to parliamentarians vary by country, but frequently include:[3] Germany has a long tradition of incompatibility resolutions (German: Unvereinbarkeitsbeschluss) issued by its parties: Communist Party of Germany (KPD) adopted an incompatibility resolution against the left-wing International Socialist Youth League (ISYL) already in 1922.
[5] The compilation of these resolutions for a particular party is also known as an incompatibility list, German: Unvereinbarkeitsliste.