Hi, Here is code which can change language for current user with JSOM : <script type="text/javascript" charset="utf8" src="/sites/BizDev/Style%20Library/SPS/jquery-1.11.3.min.js"></script> <select id='LangSelect' onchange="SetUserLanguage(this.value);"></select> <script type="text/javascript"> function SetUserLanguage(lCode) { var call = $.ajax({ url: _spPageContextInfo.siteAbsoluteUrl + "/_api/Web/Lists/GetByTitle('Languages')/items?" + "$select=Title,Code,LCode,ID&$top=5000&$filter=Code eq "+lCode, type: "GET", dataType: "json", headers: { Accept: "application/json;odata=verbose" } }); call.done(function (data, textStatus, jqXHR) { var multipleValues = []; for (var i=0;i<data.d.results.length;i++){
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