Well, psyops is the term used for military level operations. Propaganda is for the non-military portion of governments, politics, NGO's. Marketing is for private, mostly commercial, entities.
Of course they have significant overlap in techniques & tactics, and all come in the same flavors: White/Grey/Black, categorizations that pertain mainly to whether or not the source is known, though also the types of tactics that might be used.
--White have a fairly clear attributable source & intent.
--Grey are more ambiguous. Usually you get someone else to say what you want them to say. Maybe they don't even know you're doing it, maybe they're a paid shill.
What do you think marketing is?