diff --git a/core/context.cpp b/core/context.cpp
index 9d6042a..9f656dd 100644
--- a/core/context.cpp
+++ b/core/context.cpp
@@ -15,6 +15,8 @@
 #include "users/users.h"
 #include "roles/roles.h"
 #include "permissionservice.h"
+#include "seasonservice.h"
+#include "numberseriesservice.h"
 
 Context::~Context()
 {
@@ -50,7 +52,7 @@ void Context::loadPlugins()
     m_plugins.append(new Users);
     m_plugins.append(new Roles);
 
-    QDir pluginsDir(qApp->applicationDirPath() + "/../plugins");
+    QDir pluginsDir(qApp->applicationDirPath() + "/../../plugins");
 
     foreach (QString fileName, pluginsDir.entryList(QStringList() << "*.so" << "*.dll")) {
         QPluginLoader pluginLoader(pluginsDir.absoluteFilePath(fileName));
@@ -86,6 +88,8 @@ void Context::openDb(const QString &path)
     m_dbOpened = true;
 
     checkPermissions();
+    checkSeason();
+    checkNumberSeries();
 }
 
 void Context::destroy()
@@ -253,3 +257,42 @@ void Context::checkPermissions()
 
     permService.checkForAdmin();
 }
+
+void Context::checkSeason()
+{
+    SeasonService srv;
+    QSharedPointer<Season> season = srv.active();
+
+    if (season.isNull())
+    {
+        season = QSharedPointer<Season>(new Season());
+        season->setName("<<new season>>");
+        season->setValidFrom(QDate::currentDate());
+        season->setActive(true);
+        srv.save(season);
+    }
+}
+
+void Context::checkNumberSeries()
+{
+    NumberSeriesService srv;
+    SeasonService sesSrv;
+    QSharedPointer<Season> curSeason = sesSrv.active();
+
+    foreach (IPlugin *plugin, m_plugins) {
+        if (plugin->hasNumberSeries())
+        {
+            QSharedPointer<NumberSeries> numSer = srv.forPlugin(plugin->pluginId());
+
+            if (numSer.isNull())
+            {
+                numSer = QSharedPointer<NumberSeries>(new NumberSeries());
+                numSer->setPrefix(plugin->numberSeriesPrefix());
+                numSer->setPluginId(plugin->pluginId());
+                numSer->setSeason(curSeason);
+
+                srv.save(numSer);
+            }
+        }
+    }
+}
diff --git a/core/context.h b/core/context.h
index 7d28143..7eb06a7 100644
--- a/core/context.h
+++ b/core/context.h
@@ -55,6 +55,8 @@ private:
     void solveDep(IPlugin *plugin, const QSqlDatabase &db, const QMap<QString, int> &schemaMap);
     void createSchema(IPlugin *plugin, const QSqlDatabase &db, const QMap<QString, int> &schemaMap);
     void checkPermissions();
+    void checkSeason();
+    void checkNumberSeries();
 };
 
 #endif // CONTEXT_H
diff --git a/core/core.pro b/core/core.pro
index 5b64143..0a86309 100644
--- a/core/core.pro
+++ b/core/core.pro
@@ -52,7 +52,11 @@ SOURCES += \
     settingsform.cpp \
     settings/globalsettingsform.cpp \
     permissionevaluator.cpp \
-    objectbinder.cpp
+    objectbinder.cpp \
+    data/numberseries.cpp \
+    data/season.cpp \
+    seasonservice.cpp \
+    numberseriesservice.cpp
 
 HEADERS += core.h\
         core_global.h \
@@ -104,7 +108,11 @@ HEADERS += core.h\
     settings/globalsettingsform.h \
     formbinder.h \
     permissionevaluator.h \
-    objectbinder.h
+    objectbinder.h \
+    data/numberseries.h \
+    data/season.h \
+    seasonservice.h \
+    numberseriesservice.h
 
 unix {
     target.path = /usr/lib
diff --git a/core/data/core-data.h b/core/data/core-data.h
index c1f1e1e..b8c8a88 100644
--- a/core/data/core-data.h
+++ b/core/data/core-data.h
@@ -4,11 +4,15 @@
 class User;
 class Permission;
 class Role;
+class Season;
+class NumberSeries;
 
 #include "user.h"
 #include "role.h"
 #include "permission.h"
 #include "system.h"
+#include "search.h"
+#include "numberseries.h"
 
 #endif // COREDATA_H
 
diff --git a/core/data/numberseries.cpp b/core/data/numberseries.cpp
new file mode 100644
index 0000000..2813c82
--- /dev/null
+++ b/core/data/numberseries.cpp
@@ -0,0 +1,75 @@
+#include "numberseries.h"
+#include "../context.h"
+#include "../iplugin.h"
+
+NumberSeries::NumberSeries(QObject *parent) : QObject(parent)
+{
+    m_id = 0;
+    m_lastNumber = 0;
+}
+
+int NumberSeries::id() const
+{
+    return m_id;
+}
+
+void NumberSeries::setId(int id)
+{
+    m_id = id;
+}
+
+QString NumberSeries::prefix() const
+{
+    return m_prefix;
+}
+
+void NumberSeries::setPrefix(const QString &prefix)
+{
+    m_prefix = prefix;
+}
+
+int NumberSeries::lastNumber() const
+{
+    return m_lastNumber;
+}
+
+void NumberSeries::setLastNumber(int lastNumber)
+{
+    m_lastNumber = lastNumber;
+}
+
+QString NumberSeries::pluginId() const
+{
+    return m_pluginId;
+}
+
+void NumberSeries::setPluginId(const QString &pluginId)
+{
+    m_pluginId = pluginId;
+}
+
+QSharedPointer<Season> NumberSeries::season() const
+{
+    return m_season;
+}
+
+void NumberSeries::setSeason(const QSharedPointer<Season> &season)
+{
+    m_season = season;
+}
+
+QString NumberSeries::seasonName() const
+{
+    if (!m_season.isNull())
+    {
+        return m_season->name();
+    }
+
+    return "";
+}
+
+QString NumberSeries::pluginName() const
+{
+    IPlugin *plugin = Context::instance().plugin(m_pluginId);
+    return plugin != NULL ? plugin->pluginName() : "";
+}
diff --git a/core/data/numberseries.h b/core/data/numberseries.h
new file mode 100644
index 0000000..7c189e0
--- /dev/null
+++ b/core/data/numberseries.h
@@ -0,0 +1,52 @@
+#ifndef NUMBERSERIES_H
+#define NUMBERSERIES_H
+
+#include <QObject>
+#include <QSharedPointer>
+
+#include <odb/core.hxx>
+
+#include "season.h"
+
+#pragma db object
+class NumberSeries : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(QString prefix READ prefix WRITE setPrefix)
+    Q_PROPERTY(int lastNumber READ lastNumber WRITE setLastNumber)
+    Q_PROPERTY(QString pluginName READ pluginName)
+    Q_PROPERTY(QString seasonName READ seasonName)
+public:
+    explicit NumberSeries(QObject *parent = 0);
+
+    int id() const;
+    void setId(int id);
+
+    QString prefix() const;
+    void setPrefix(const QString &prefix);
+
+    int lastNumber() const;
+    void setLastNumber(int lastNumber);
+
+    QString pluginId() const;
+    void setPluginId(const QString &pluginId);
+
+    QSharedPointer<Season> season() const;
+    void setSeason(const QSharedPointer<Season> &season);
+
+    QString seasonName() const;
+
+    QString pluginName() const;
+
+private:
+    friend class odb::access;
+
+#pragma db id auto
+    int m_id;
+    QString m_prefix;
+    int m_lastNumber;
+    QString m_pluginId;
+    QSharedPointer<Season> m_season;
+};
+
+#endif // NUMBERSERIES_H
diff --git a/core/data/season.cpp b/core/data/season.cpp
new file mode 100644
index 0000000..8328f08
--- /dev/null
+++ b/core/data/season.cpp
@@ -0,0 +1,58 @@
+#include "season.h"
+
+Season::Season(QObject *parent)
+    :QObject(parent)
+{
+    m_id = 0;
+    m_active = false;
+}
+
+QString Season::name() const
+{
+    return m_name;
+}
+
+void Season::setName(const QString &name)
+{
+    m_name = name;
+}
+
+QDate Season::validFrom() const
+{
+    return m_validFrom;
+}
+
+void Season::setValidFrom(const QDate &validFrom)
+{
+    m_validFrom = validFrom;
+}
+
+QDate Season::validTo() const
+{
+    return m_validTo;
+}
+
+void Season::setValidTo(const QDate &validTo)
+{
+    m_validTo = validTo;
+}
+
+bool Season::active() const
+{
+    return m_active;
+}
+
+void Season::setActive(bool active)
+{
+    m_active = active;
+}
+
+int Season::id() const
+{
+    return m_id;
+}
+
+void Season::setId(int id)
+{
+    m_id = id;
+}
diff --git a/core/data/season.h b/core/data/season.h
new file mode 100644
index 0000000..cf7158d
--- /dev/null
+++ b/core/data/season.h
@@ -0,0 +1,49 @@
+#ifndef SEASON_H
+#define SEASON_H
+
+#include "core_global.h"
+
+#include <QObject>
+#include <QString>
+#include <QDate>
+
+#include <odb/core.hxx>
+
+#pragma db object
+class CORESHARED_EXPORT Season : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(QString name READ name WRITE setName)
+    Q_PROPERTY(QDate validFrom READ validFrom WRITE setValidFrom)
+    Q_PROPERTY(QDate validTo READ validTo WRITE setValidTo)
+    Q_PROPERTY(bool active READ active WRITE setActive)
+public:
+    explicit Season(QObject *parent = 0);
+
+    QString name() const;
+    void setName(const QString &name);
+
+    QDate validFrom() const;
+    void setValidFrom(const QDate &validFrom);
+
+    QDate validTo() const;
+    void setValidTo(const QDate &validTo);
+
+    bool active() const;
+    void setActive(bool active);
+
+    int id() const;
+    void setId(int id);
+
+private:
+    friend class odb::access;
+
+#pragma db id auto
+    int m_id;
+    QString m_name;
+    QDate m_validFrom;
+    QDate m_validTo;
+    bool m_active;
+};
+
+#endif // SEASON_H
diff --git a/core/iplugin.h b/core/iplugin.h
index 018b2dc..afebb9b 100644
--- a/core/iplugin.h
+++ b/core/iplugin.h
@@ -77,6 +77,9 @@ public:
     virtual QIcon pluginIcon() { return QIcon(); }
     QMap<QString, QString> translations() { return m_translations; }
 
+    virtual bool hasNumberSeries() { return false; }
+    virtual QString numberSeriesPrefix() { return ""; }
+
 protected:
     QTranslator* translatorFrom(QString fileName) {
         QTranslator *trans = new QTranslator();
diff --git a/core/metaData.json b/core/metaData.json
index 5821dc8..e3df92f 100644
--- a/core/metaData.json
+++ b/core/metaData.json
@@ -74,6 +74,23 @@ CREATE TABLE \"Permission\" (
   \"createDate\" TEXT NULL,
   \"active\" INTEGER NOT NULL);
 
+CREATE TABLE \"Season\" (
+  \"id\" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+  \"name\" TEXT NULL,
+  \"validFrom\" TEXT NULL,
+  \"validTo\" TEXT NULL,
+  \"active\" INTEGER NOT NULL);
+
+CREATE TABLE \"NumberSeries\" (
+  \"id\" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+  \"prefix\" TEXT NULL,
+  \"lastNumber\" INTEGER NOT NULL,
+  \"pluginId\" TEXT NULL,
+  \"season\" INTEGER NULL,
+  CONSTRAINT \"season_fk\"
+    FOREIGN KEY (\"season\")
+    REFERENCES \"Season\" (\"id\")
+    DEFERRABLE INITIALLY DEFERRED);
 "   ],
     "dependencies" : []
     }
diff --git a/core/numberseriesservice.cpp b/core/numberseriesservice.cpp
new file mode 100644
index 0000000..ecd121c
--- /dev/null
+++ b/core/numberseriesservice.cpp
@@ -0,0 +1,53 @@
+#include "numberseriesservice.h"
+#include "seasonservice.h"
+#include "core-odb.hxx"
+
+NumberSeriesService::NumberSeriesService()
+{
+
+}
+
+QSharedPointer<NumberSeries> NumberSeriesService::forPluginAndSeason(QString pluginId, QSharedPointer<Season> season)
+{
+    QList<QSharedPointer<NumberSeries> > series = all(QString("pluginId = '%1' AND season = %2").arg(pluginId, QString::number(season->id())));
+
+    if (!series.isEmpty())
+    {
+        return series[0];
+    }
+
+    return QSharedPointer<NumberSeries>();
+}
+
+QSharedPointer<NumberSeries> NumberSeriesService::forPlugin(QString pluginId)
+{
+    SeasonService sesSrv;
+    QSharedPointer<Season> currentSeason = sesSrv.active();
+
+    if (!currentSeason.isNull())
+    {
+        return forPluginAndSeason(pluginId, currentSeason);
+    }
+
+    return QSharedPointer<NumberSeries>();
+}
+
+QSharedPointer<NumberSeries> NumberSeriesService::nextForPlugin(QString pluginId)
+{
+    QSharedPointer<NumberSeries> numSer = forPlugin(pluginId);
+
+    if (numSer.isNull())
+    {
+        return QSharedPointer<NumberSeries>();
+    }
+
+    numSer->setLastNumber(numSer->lastNumber() + 1);
+    update(numSer);
+
+    return numSer;
+}
+
+QList<QSharedPointer<NumberSeries> > NumberSeriesService::allForSeason(QSharedPointer<Season> season)
+{
+    return all(QString("season = %1").arg(QString::number(season->id())));
+}
diff --git a/core/numberseriesservice.h b/core/numberseriesservice.h
new file mode 100644
index 0000000..d2e1ed0
--- /dev/null
+++ b/core/numberseriesservice.h
@@ -0,0 +1,20 @@
+#ifndef NUMBERSERIESSERVICE_H
+#define NUMBERSERIESSERVICE_H
+
+#include "data/numberseries.h"
+#include "data/season.h"
+#include "service.h"
+#include "core_global.h"
+
+class CORESHARED_EXPORT NumberSeriesService : public Service<NumberSeries>
+{
+public:
+    NumberSeriesService();
+
+    QSharedPointer<NumberSeries> forPluginAndSeason(QString pluginId, QSharedPointer<Season> season);
+    QSharedPointer<NumberSeries> forPlugin(QString pluginId);
+    QSharedPointer<NumberSeries> nextForPlugin(QString pluginId);
+    QList<QSharedPointer<NumberSeries> > allForSeason(QSharedPointer<Season> season);
+};
+
+#endif // NUMBERSERIESSERVICE_H
diff --git a/core/seasonservice.cpp b/core/seasonservice.cpp
new file mode 100644
index 0000000..f22256b
--- /dev/null
+++ b/core/seasonservice.cpp
@@ -0,0 +1,34 @@
+#include "seasonservice.h"
+
+#include "core-odb.hxx"
+
+SeasonService::SeasonService()
+{
+
+}
+
+QSharedPointer<Season> SeasonService::active()
+{
+    QList<QSharedPointer<Season> > seasons = all("active = 1");
+    if (seasons.count() > 0)
+    {
+        return seasons[0];
+    }
+
+    return QSharedPointer<Season>();
+}
+
+void SeasonService::activate(QSharedPointer<Season> season)
+{
+    Transaction tx;
+
+    foreach (QSharedPointer<Season> ses, all()) {
+        ses->setActive(false);
+        update(ses);
+    }
+
+    season->setActive(true);
+    update(season);
+
+    tx.commit();
+}
diff --git a/core/seasonservice.h b/core/seasonservice.h
new file mode 100644
index 0000000..738c8c4
--- /dev/null
+++ b/core/seasonservice.h
@@ -0,0 +1,18 @@
+#ifndef SEASONSERVICE_H
+#define SEASONSERVICE_H
+
+#include <QSharedPointer>
+
+#include "data/season.h"
+#include "service.h"
+#include "core_global.h"
+
+class CORESHARED_EXPORT SeasonService : public Service<Season>
+{
+public:
+    SeasonService();
+    QSharedPointer<Season> active();
+    void activate(QSharedPointer<Season> season);
+};
+
+#endif // SEASONSERVICE_H
diff --git a/qdecimal/common.pri b/qdecimal/common.pri
index 7d8b6fa..5414398 100644
--- a/qdecimal/common.pri
+++ b/qdecimal/common.pri
@@ -6,7 +6,7 @@
 #DEFINES += DECEXTFLAG=1     # default is 1
 #DEFINES += DECLITEND=0     # default is 1
 
-CONFIG += debug
+#CONFIG += debug
 
 
 if(win32) {
@@ -24,7 +24,7 @@ if(win32) {
    #msvc2010 onwards above flags are deprecated.	
 
    # Use Run-time checks for stack corruption and uninitialized var use
-   QMAKE_CXXFLAGS += /RTC1
+   #QMAKE_CXXFLAGS += /RTC1
  }
 
 } # end win32
diff --git a/shop/shop.cpp b/shop/shop.cpp
index 448c811..7d7e8cc 100644
--- a/shop/shop.cpp
+++ b/shop/shop.cpp
@@ -31,3 +31,13 @@ QTranslator *Shop::translator()
 {
     return translatorFrom(":/translations/shop_");
 }
+
+bool Shop::hasNumberSeries()
+{
+    return true;
+}
+
+QString Shop::numberSeriesPrefix()
+{
+    return "PD";
+}
diff --git a/shop/shop.h b/shop/shop.h
index 2d36993..a3b061b 100644
--- a/shop/shop.h
+++ b/shop/shop.h
@@ -24,6 +24,8 @@ public:
     virtual QIcon pluginIcon();
     virtual QWidget *ui() override;
     QTranslator *translator();
+    bool hasNumberSeries();
+    QString numberSeriesPrefix();
 };
 
 #endif // SHOP_H