The language code is unique identifier of the language. You cannot import two languages with the same language code.
The language code can be used to automatically display your Post Affiliate Pro in one of the enabled languages. If customer's preferred language setting in his browser matches the code of an available language in Post Affiliate Pro, then the software uses this language. If you are not interested in this functionality then the language code is arbitrary and the only limitation is that it can be only 5 characters in length.
Example of language code for American English is en-US. If you don't know which language code you should use, please select one from the following table (first 2 letters):
aa Afar Afaraf
ab Abkhazian Аҧсуа
ae Avestan avesta
af Afrikaans Afrikaans
ak Akan Akan
am Amharic አማርኛ
an Aragonese Aragonés
ar Arabic العربية Standard Arabic is [arb]
as Assamese অসমীয়া
av Avaric авар мацӀ; магӀарул мацӀ
ay Aymara aymar aru
az Azerbaijani azərbaycan dili
ba Bashkir башҡорт теле
be Belarusian Беларуская
bg Bulgarian български език
bh Bihari भोजपुरी collective language code for Bhojpuri, Magahi, and Maithili
bi Bislama Bislama
bm Bambara bamanankan
bn Bengali বাংলা
bo Tibetan བོད་ཡིག
br Breton brezhoneg
bs Bosnian bosanski jezik
ca Catalan Català Also called Valencian
ce Chechen нохчийн мотт
ch Chamorro Chamoru
co Corsican corsu; lingua corsa
cr Cree ᓀᐦᐃᔭᐍᐏᐣ
cs Czech česky; čeština
cu Church Slavic ѩзыкъ словѣньскъ
cv Chuvash чӑваш чӗлхи
cy Welsh Cymraeg
da Danish dansk
de German Deutsch
dv Divehi ދިވެހި
dz Dzongkha རྫོང་ཁ
ee Ewe Ɛʋɛgbɛ
el Greek Ελληνικά
en English English
eo Esperanto Esperanto
es Spanish Español; castellano
et Estonian Eesti keel
eu Basque euskara
fa Persian فارسی
ff Fulah Fulfulde
fi Finnish suomen kieli
fj Fijian vosa Vakaviti
fo Faroese Føroyskt
fr French Français; langue française
fy Western Frisian Frysk
ga Irish Gaeilge
gd Scottish Gaelic Gàidhlig
gl Galician Galego
gn Guaraní Avañe'ẽ
gu Gujarati ગુજરાતી
gv Manx Ghaelg
ha Hausa هَوُسَ
he Hebrew עברית
hi Hindi हिन्दी; हिंदी
ho Hiri Motu Hiri Motu
hr Croatian Hrvatski
ht Haitian Kreyòl ayisyen
hu Hungarian Magyar
hy Armenian Հայերեն
hz Herero Otjiherero
ia Interlingua (International Auxiliary Language Association) Interlingua
id Indonesian Bahasa Indonesia
ie Interlingue Interlingue
ig Igbo Igbo
ii Sichuan Yi ꆇꉙ
ik Inupiaq Iñupiaq; Iñupiatun
io Ido Ido
is Icelandic Íslenska
it Italian Italiano
iu Inuktitut ᐃᓄᒃᑎᑐᑦ
ja Japanese 日本語 (にほんご/にっぽんご)
jv Javanese basa Jawa
ka Georgian ქართული
kg Kongo KiKongo
ki Kikuyu Gĩkũyũ
kj Kwanyama Kuanyama
kk Kazakh Қазақ тілі
kl Kalaallisut kalaallisut; kalaallit oqaasii
km Khmer ភាសាខ្មែរ
kn Kannada ಕನ್ನಡ
ko Korean 한국어 (韓國語); 조선말 (朝鮮語)
kr Kanuri Kanuri
ks Kashmiri कश्मीरी; كشميري
ku Kurdish Kurdî; كوردی
kv Komi коми кыв
kw Cornish Kernewek
ky Kirghiz кыргыз тили
la Latin latine; lingua latina
lb Luxembourgish Lëtzebuergesch
lg Ganda Luganda
li Limburgish Limburgs
ln Lingala Lingála
lo Lao ພາສາລາວ
lt Lithuanian lietuvių kalba
lu Luba-Katanga
lv Latvian latviešu valoda
mg Malagasy Malagasy fiteny
mh Marshallese Kajin M̧ajeļ
mi Māori te reo Māori
mk Macedonian македонски јазик
ml Malayalam മലയാളം
mn Mongolian Монгол
mo Moldavian Limba moldovenească Cyrillic лимба молдовеняскэ
mr Marathi मराठी
ms Malay bahasa Melayu; بهاس ملايو Malay (specific) is [mly]
mt Maltese Malti
my Burmese ဗမာစာ
na Nauru Ekakairũ Naoero
nb Norwegian Bokmål Norsk bokmål
nd North Ndebele isiNdebele
ne Nepali नेपाली
ng Ndonga Owambo
nl Dutch Nederlands
nn Norwegian Nynorsk Norsk nynorsk
no Norwegian Norsk
nr South Ndebele Ndébélé
nv Navajo Diné bizaad; Dinékʼehǰí
ny Chichewa chiCheŵa; chinyanja
oc Occitan Occitan
oj Ojibwa ᐊᓂᔑᓈᐯᒧᐎᓐ
om Oromo Afaan Oromoo
or Oriya ଓଡ଼ିଆ
os Ossetian Ирон æвзаг
pa Panjabi ਪੰਜਾਬੀ; پنجابی
pi Pāli पाऴि
pl Polish polski
ps Pashto پښتو
pt Portuguese Português
qu Quechua Runa Simi; Kichwa
rm Raeto-Romance rumantsch grischun
rn Kirundi kiRundi
ro Romanian română
ru Russian русский язык
rw Kinyarwanda Ikinyarwanda
sa Sanskrit संस्कृतम्
sc Sardinian sardu
sd Sindhi सिन्धी; سنڌي، سندھی
se Northern Sami Davvisámegiella
sg Sango yângâ tî sängö
sh Serbo-Croatian Srpskohrvatski; Српскохрватски
si Sinhala සිංහල
sk Slovak slovenčina
sl Slovenian slovenščina
sm Samoan gagana fa'a Samoa
sn Shona chiShona
so Somali Soomaaliga; af Soomaali
sq Albanian Shqip
sr Serbian српски језик
ss Swati SiSwati
st Sotho seSotho
su Sundanese Basa Sunda
sv Swedish svenska
sw Swahili Kiswahili
ta Tamil தமிழ்
te Telugu తెలుగు
tg Tajik тоҷикӣ; toğikī; تاجیکی
th Thai ไทย
ti Tigrinya ትግርኛ
tk Turkmen Türkmen; Түркмен
tl Tagalog Tagalog
tn Tswana seTswana
to Tonga faka Tonga
tr Turkish Türkçe
ts Tsonga xiTsonga
tt Tatar татарча; tatarça; تاتارچا
tw Twi Twi
ty Tahitian Reo Mā`ohi
ug Uighur Uyƣurqə; ئۇيغۇرچ
uk Ukrainian Українська
ur Urdu اردو
uz Uzbek O'zbek; Ўзбек; أۇزبېك
ve Venda tshiVenḓa
vi Vietnamese Tiếng Việt
vo Volapük Volapük
wa Walloon Walon
wo Wolof Wollof
xh Xhosa isiXhosa
yi Yiddish ייִדיש
yo Yoruba Yorùbá
za Zhuang Saɯ cueŋƅ; Saw cuengh
zh Chinese 中文, 汉语, 漢語
zu Zulu