Is there a way to use Retuner to stop those annoying party invitation phone calls and those follow up messages and calls? I saw a mod for that but maybe it can be done in Retuner?

There must be a bug in the game when one clicks "No thanks!" and one still get messages and another phone call later.

I don't have my game open but if you're talking about those seasonal party invitations then the settings are found in Tempest. You can turn off the seasonal invitations and also in there somewhere you can turn off other invitations. Sorry I can't give you the exact path but see if there's anything in Social in Tempest. Hope that steers you in the right direction until someone else has a better solution.

Thanks, littlelambsy, but I have a sim with the charismatic trait and he gets party invitations almost every sim-day. First a call with the invitation, and I click "No thanks!". Then a little later I get a reminder, "be sure you don't miss the party". And then at night a new call "too bad you couldn't come"... (Something like that. My game is in Swedish). And it's almost always uninteresting random sims that my sim has met somewhere.

Returner>>Setting>>General>>XLM>>Sims3.Gameplay.Situations>>NpcParty>>kChanceForceKnowNpcPartyHost (or ChanceOfPartyForDaysWeek)

@Sara_Darkees Thanks! I will try that!

And if you have Storyprogression you can check the Caste option for Service Population and set this option to false, if its not
Push: Allow To Party
Whether the mod is allowed to push this sim to gathering parties
Default: True