A Few quick questions from a long-gone returning player.

[SteveMND]

So, several of us use to play a little of PFS back in the day, until D&D 5e came out and it kinda got lost to the wayside. With PF2 out now, and some interesting new mechanics in the mix, we thought we'd rry our hand again at PFS at an upcoming con.

So far, the Pathfinder 2nd Edition Core book itself is great, but I've been having some issues in trying to find everything regarding the Pathfinder Society stuff themselves, as -- unless I'm simply looking at the wrong spots -- everything seems to be scattered around among the Paizo main Pathfinder pages, blog entries and a third-party website.

Which is nothing new for an OP campaign, but I wanted to make sure I was getting everything correct here so when we head to the convention next month, all our ducks are in a row.

ASSUMPTION #1: The is the original Pathfinder Society Organized Play campaign, which uses the Pathfinder (original edition) rules and its own set of guidlines, and then there is also a Pathfinder Society Organized Play campaign which uses the Pathfinder 2nd Edition rules and its own set of guidelines, although the two are seperate, and do not allow characters from one to be used in the other. Both, however, are still called just "Pathfinder Society" and both are sharing the same Forum so I'll have to make sure the games we are signing up for are for the new 2nd Edition version, which I'm guessing is based solely on the mod numbers? For example "PF2 1-01: The Absalom Initiation" is the first mod of the first season for the 2nd edition campaign, correct?

ASSUMPTION #2: The current places I should be looking for the most-up-to-date info on what is and isn't legal for a PFS2 character are:
• http://www.organizedplayfoundation.org/encyclopedia/pfs2guide/ -- for the base online copy of the game rules and procedures of PFS2 OP.
• http://www.organizedplayfoundation.org/encyclopedia/pathfinder-2-0-characte r-options/ -- for any additional non-Core book allowances, of which much of the newest stuff has not been added yet, and so for that I need to be looking at https://paizo.com/community/blog/v5748dyo6sh3j?Pathfinder-Society-Character -Options instead (for now).

ASSUMPTION #3: The PF2 OP Campaign uses the PF2 Core book for allowable elements at character creation, and other stuff with special permission. Right now, the only 'other stuff' freely available for use at character creation (that doesn't require stuff like Achievement Points and/or special campaign certificates and/or physical copies of the book and/or watermarked PDFs) besides the PF2 Core book -- I think -- is the Lost Omens World Guide? I think there may be some elements from Lost Omens Character Guide and Lost Omens Gods & Magic but I'm not entirely sure on that. For example, under the Lost Omens Character Guide it says that "All ancestry options are of standard availability," but then it also immediately adds that the "hobgoblin, leshy, and lizardfolk ancestries are uncommon" which means they can't be taken. But stuff like the organizational feats (assuming they are not labelled as uncommon) would be available, such as stuff from Firebrand or Hellknights?

So, if I'm reading all of this correctly, if we showed up at a game next month, our brand-spanking new characters would be built from the Core PF2 book and the non-uncommon parts of the Lost Omens World Guide.

Sorry for the long post, but there's an awful lot to go through here as a (once again) new player, and I wanted to minimize any unforeseen weirdness when we hit the tables next month. Thanks in advance!

[DrParty06]

ASSUMPTION #1: Correct.
ASSUMPTION #2: Correct.
ASSUMPTION #3: "So, if I'm reading all of this correctly, if we showed up at a game next month, our brand-spanking new characters would be built from the Core PF2 book and the non-uncommon parts of the Lost Omens World Guide." - You also can only use the Common parts of the Core Rulebook, otherwise Correct.

[Blake's Tiger]

“Ancestries” are human, dwarf, leshy, etc.
“Ancestry options” are choices made within an “ancestry,” such as heritage and ancestry feats.

Organizational feats as you’re calling the archetype feats have other restrictions preventing their use at 1st level, but they’re accessible.

[cavernshark]

This blog details which books outside of the Core Rulebook are sanctioned. It's a temporary home for that info while they work out a more permanent one. So for your last question, there are several uncommon options in the Lost Omens Character guide which might be available for your characters (albeit maybe not at level 1 :) )