diff --git a/src/google/google-calendars/googlecalendarsyncadaptor.cpp b/src/google/google-calendars/googlecalendarsyncadaptor.cpp
index 686d0a8..e02d6a0 100644
--- a/src/google/google-calendars/googlecalendarsyncadaptor.cpp
+++ b/src/google/google-calendars/googlecalendarsyncadaptor.cpp
@@ -879,6 +879,10 @@ QString toBase32hex(QByteArray bytes)
     return result;
 }
 
+QString percentEnc(const QString &str) {
+    return QString::fromUtf8(QUrl::toPercentEncoding(str));
+}
+
 QString generate_uuid()
 {
     // UUID documentation here:
@@ -1229,19 +1233,25 @@ void GoogleCalendarSyncAdaptor::calendarsFinishedHandler()
         for (int i = 0; i < items.count(); ++i) {
             QJsonObject currCalendar = items.at(i).toObject();
             if (!currCalendar.isEmpty() && currCalendar.find(QStringLiteral("id")) != currCalendar.end()) {
-                // we only sync calendars which the user owns (ie, not autogenerated calendars)
                 QString accessRole = currCalendar.value(QStringLiteral("accessRole")).toString();
-                if (accessRole == QStringLiteral("owner") || accessRole == QStringLiteral("writer")) {
+                AccessRole access = NoAccess;
+                if (accessRole == QStringLiteral("owner")) {
+                    access = Owner;
+                } else if (accessRole == QStringLiteral("writer")) {
+                    access = Writer;
+                } else if (accessRole == QStringLiteral("reader")) {
+                    access = Reader;
+                } else if (accessRole == QStringLiteral("freeBusyReader")) {
+                    access = FreeBusyReader;
+                }
+
+                if (access != NoAccess) {
                     GoogleCalendarSyncAdaptor::CalendarInfo currCalendarInfo;
                     currCalendarInfo.color = currCalendar.value(QStringLiteral("backgroundColor")).toString();
                     currCalendarInfo.summary = currCalendar.value(QStringLiteral("summary")).toString();
                     currCalendarInfo.description = currCalendar.value(QStringLiteral("description")).toString();
                     currCalendarInfo.change = NoChange; // we detect the appropriate change type (if required) later.
-                    if (accessRole == QStringLiteral("owner")) {
-                        currCalendarInfo.access = Owner;
-                    } else {
-                        currCalendarInfo.access = Writer;
-                    }
+                    currCalendarInfo.access = access;
                     QString currCalendarId = currCalendar.value(QStringLiteral("id")).toString();
                     m_serverCalendarIdToCalendarInfo.insert(currCalendarId, currCalendarInfo);
                 }
@@ -1410,7 +1420,7 @@ void GoogleCalendarSyncAdaptor::requestEvents(const QString &accessToken, const
         queryItems.append(QPair<QString, QString>(QString::fromLatin1("pageToken"), pageToken));
     }
 
-    QUrl url(QString::fromLatin1("https://www.googleapis.com/calendar/v3/calendars/%1/events").arg(calendarId));
+    QUrl url(QString::fromLatin1("https://www.googleapis.com/calendar/v3/calendars/%1/events").arg(percentEnc(calendarId)));
     QUrlQuery query(url);
     query.setQueryItems(queryItems);
     url.setQuery(query);
@@ -2143,8 +2153,8 @@ void GoogleCalendarSyncAdaptor::upsyncChanges(const UpsyncChange &changeToUpsync
     const QByteArray &eventData = changeToUpsync.eventData;
 
     QUrl requestUrl = upsyncType == GoogleCalendarSyncAdaptor::Insert
-                    ? QUrl(QString::fromLatin1("https://www.googleapis.com/calendar/v3/calendars/%1/events").arg(calendarId))
-                    : QUrl(QString::fromLatin1("https://www.googleapis.com/calendar/v3/calendars/%1/events/%2").arg(calendarId).arg(eventId));
+                    ? QUrl(QString::fromLatin1("https://www.googleapis.com/calendar/v3/calendars/%1/events").arg(percentEnc(calendarId)))
+                    : QUrl(QString::fromLatin1("https://www.googleapis.com/calendar/v3/calendars/%1/events/%2").arg(percentEnc(calendarId)).arg(eventId));
 
     QNetworkRequest request(requestUrl);
     request.setRawHeader("GData-Version", "3.0");
@@ -2442,7 +2452,7 @@ void GoogleCalendarSyncAdaptor::setCalendarProperties(
         const QString &syncProfile,
         const QString &ownerEmail)
 {
-    notebook->setIsReadOnly(false);
+    notebook->setIsReadOnly(calendarInfo.access == GoogleCalendarSyncAdaptor::Reader || calendarInfo.access == GoogleCalendarSyncAdaptor::FreeBusyReader);
     notebook->setName(calendarInfo.summary);
     notebook->setDescription(calendarInfo.description);
     notebook->setPluginName(QStringLiteral("google"));