Administrative Efficiency idea is one of the ideas in Centralization Ideas.

The province section means that you need 10 (or more) core, non-overseas provinces that are inland.

Thanks for the help, but what defines inland? having no port? if that is the definition then I have about 16 provinces all cored, and it still sais itn't forfilled

Can you post a screenshot?

https://www.dropbox.com/sh/uf1wtplhlep0d7x/AAAK-WZkIBFWRP-hICH7DWZca?dl=0

This should have the screenshots, together with my last save game. I hope that will help

ven_stato_da_tera = {
potential = {government = venice_republic}
allow = {
has_idea = administrative_efficiency_idea
adm_tech = 14
adm_power = 100
treasury = 300
OR = {
has_country_modifier = dominant_consiglio_dieci
has_country_modifier = strong_consiglio_dieci}
has_country_modifier = weak_maggior_consiglio
num_of_owned_provinces_with = {
is_core = yes
is_overseas = no
has_port = no
value = 10 } }

Hey Golldaan, I found the file in notepad and this is what it says (I cleaned up the spacing a bit) and here is a a bit of the Russian event from notepad which clearly is working

# Russia
country_decisions = {

# Form Russia - as MOS, NOV or appropraite Russian minor
russian_nation = {
major = yes

potential = {
OR = {
primary_culture = russian
primary_culture = byelorussian }
OR = {
num_of_owned_provinces_with = {
value = 15
region = russian_region }
ai = no}
NOT = { exists = RUS }
is_subject = no}...

The only difference I can really tell is where the value is placed. Could that possibly be messing anything up? (Like it should come at the beginning of the section instead of the end?)

num_of_owned_provinces_with = {
value = 10
is_core = yes
is_overseas = no
has_port = no} (Like this?)