If you are working in an international company you might have noticed that shared mailboxes in Office 365 have a tendency to switch language from time to time. π
If you need to set the language of a shared mailbox you can do it with PowerShell.
Run the PowerShell command, but replace the mail and language.
Set-MailboxRegionalConfiguration -Identity example@example.com -LocalizeDefaultFolderName:$true -Language en-US
That’s it!
Oh, you are speaking a different language? Perhaps ζ₯ζ¬θͺ or EspaΓ±ol?
I am not 100% sure about all the codes for different languages. Microsoft docs say it uses codes from the RFC 4646 specification, so here are some examples:
| Country and language | Code |
| Afrikaans β South Africa | af-ZA |
| Albanian β Albania | sq-AL |
| Arabic β Algeria | ar-DZ |
| Arabic β Bahrain | ar-BH |
| Arabic β Egypt | ar-EG |
| Arabic β Iraq | ar-IQ |
| Arabic β Jordan | ar-JO |
| Arabic β Kuwait | ar-KW |
| Arabic β Lebanon | ar-LB |
| Arabic β Libya | ar-LY |
| Arabic β Morocco | ar-MA |
| Arabic β Oman | ar-OM |
| Arabic β Qatar | ar-QA |
| Arabic β Saudi Arabia | ar-SA |
| Arabic β Syria | ar-SY |
| Arabic β Tunisia | ar-TN |
| Arabic β United Arab Emirates | ar-AE |
| Arabic β Yemen | ar-YE |
| Armenian β Armenia | hy-AM |
| Azeri (Cyrillic) β Azerbaijan | az-AZ-Cyrl |
| Azeri (Latin) β Azerbaijan | az-AZ-Latn |
| Basque β Basque | eu-ES |
| Belarusian β Belarus | be-BY |
| Bulgarian β Bulgaria | bg-BG |
| Catalan β Catalan | ca-ES |
| Chinese (Simplified) | zh-CHS |
| Chinese (Traditional) | zh-CHT |
| Chinese β China | zh-CN |
| Chinese β Hong Kong SAR | zh-HK |
| Chinese β Macao SAR | zh-MO |
| Chinese β Singapore | zh-SG |
| Chinese β Taiwan | zh-TW |
| Croatian β Croatia | hr-HR |
| Czech β Czech Republic | cs-CZ |
| Danish β Denmark | da-DK |
| Dhivehi β Maldives | div-MV |
| Dutch β Belgium | nl-BE |
| Dutch β The Netherlands | nl-NL |
| English β Australia | en-AU |
| English β Belize | en-BZ |
| English β Canada | en-CA |
| English β Caribbean | en-CB |
| English β Ireland | en-IE |
| English β Jamaica | en-JM |
| English β New Zealand | en-NZ |
| English β Philippines | en-PH |
| English β South Africa | en-ZA |
| English β Trinidad and Tobago | en-TT |
| English β United Kingdom | en-GB |
| English β United States | en-US |
| English β Zimbabwe | en-ZW |
| Estonian β Estonia | et-EE |
| Faroese β Faroe Islands | fo-FO |
| Farsi β Iran | fa-IR |
| Finnish β Finland | fi-FI |
| French β Belgium | fr-BE |
| French β Canada | fr-CA |
| French β France | fr-FR |
| French β Luxembourg | fr-LU |
| French β Monaco | fr-MC |
| French β Switzerland | fr-CH |
| Galician β Galician | gl-ES |
| Georgian β Georgia | ka-GE |
| German β Austria | de-AT |
| German β Germany | de-DE |
| German β Liechtenstein | de-LI |
| German β Luxembourg | de-LU |
| German β Switzerland | de-CH |
| Greek β Greece | el-GR |
| Gujarati β India | gu-IN |
| Hebrew β Israel | he-IL |
| Hindi β India | hi-IN |
| Hungarian β Hungary | hu-HU |
| Icelandic β Iceland | is-IS |
| Indonesian β Indonesia | id-ID |
| Italian β Italy | it-IT |
| Italian β Switzerland | it-CH |
| Japanese β Japan | ja-JP |
| Kannada β India | kn-IN |
| Kazakh β Kazakhstan | kk-KZ |
| Konkani β India | kok-IN |
| Korean β Korea | ko-KR |
| Kyrgyz β Kyrgyzstan | ky-KG |
| Latvian β Latvia | lv-LV |
| Lithuanian β Lithuania | lt-LT |
| Macedonian β Former Yugoslav Republic of Macedonia | mk-MK |
| Malay β Brunei | ms-BN |
| Malay β Malaysia | ms-MY |
| Marathi β India | mr-IN |
| Mongolian β Mongolia | mn-MN |
| Norwegian (BokmΓ₯l) β Norway | nb-NO |
| Norwegian (Nynorsk) β Norway | nn-NO |
| Polish β Poland | pl-PL |
| Portuguese β Brazil | pt-BR |
| Portuguese β Portugal | pt-PT |
| Punjabi β India | pa-IN |
| Romanian β Romania | ro-RO |
| Russian β Russia | ru-RU |
| Sanskrit β India | sa-IN |
| Serbian (Cyrillic) β Serbia | sr-SP-Cyrl |
| Serbian (Latin) β Serbia | sr-SP-Latn |
| Slovak β Slovakia | sk-SK |
| Slovenian β Slovenia | sl-SI |
| Spanish β Argentina | es-AR |
| Spanish β Bolivia | es-BO |
| Spanish β Chile | es-CL |
| Spanish β Colombia | es-CO |
| Spanish β Costa Rica | es-CR |
| Spanish β Dominican Republic | es-DO |
| Spanish β Ecuador | es-EC |
| Spanish β El Salvador | es-SV |
| Spanish β Guatemala | es-GT |
| Spanish β Honduras | es-HN |
| Spanish β Mexico | es-MX |
| Spanish β Nicaragua | es-NI |
| Spanish β Panama | es-PA |
| Spanish β Paraguay | es-PY |
| Spanish β Peru | es-PE |
| Spanish β Puerto Rico | es-PR |
| Spanish β Spain | es-ES |
| Spanish β Uruguay | es-UY |
| Spanish β Venezuela | es-VE |
| Swahili β Kenya | sw-KE |
| Swedish β Finland | sv-FI |
| Swedish β Sweden | sv-SE |
| Syriac β Syria | syr-SY |
| Tamil β India | ta-IN |
| Tatar β Russia | tt-RU |
| Telugu β India | te-IN |
| Thai β Thailand | th-TH |
| Turkish β Turkey | tr-TR |
| Ukrainian β Ukraine | uk-UA |
| Urdu β Pakistan | ur-PK |
| Uzbek (Cyrillic) β Uzbekistan | uz-UZ-Cyrl |
| Uzbek (Latin) β Uzbekistan | uz-UZ-Latn |