diff --git a/__init__.py b/__init__.py
index 21d3742..d29e36e 100644
--- a/__init__.py
+++ b/__init__.py
@@ -10,6 +10,7 @@ from .line import Line, LineContext
 from .wizard_openline import OpenCashBook, OpenCashBookStart
 from .configuration import Configuration, UserConfiguration
 from .category import Category
+from .reconciliation import Reconciliation
 
 def register():
     Pool.register(
@@ -20,6 +21,7 @@ def register():
         Book,
         LineContext,
         Line,
+        Reconciliation,
         OpenCashBookStart,
         module='cashbook', type_='model')
     Pool.register(
diff --git a/book.py b/book.py
index a360f7c..da49399 100644
--- a/book.py
+++ b/book.py
@@ -39,16 +39,22 @@ class Book(Workflow, ModelSQL, ModelView):
         model_name='cashbook.type', ondelete='RESTRICT',
         states=STATES, depends=DEPENDS)
     owner = fields.Many2One(string='Owner', required=True, select=True,
-        model_name='res.user', ondelete='SET NULL')
+        model_name='res.user', ondelete='SET NULL',
+        states=STATES, depends=DEPENDS)
     reviewer = fields.Many2One(string='Reviewer', select=True,
         help='Group of users who have write access to the cashbook.',
-        model_name='res.group', ondelete='SET NULL')
+        model_name='res.group', ondelete='SET NULL',
+        states=STATES, depends=DEPENDS)
     observer = fields.Many2One(string='Observer', select=True,
         help='Group of users who have read-only access to the cashbook.',
-        model_name='res.group', ondelete='SET NULL')
+        model_name='res.group', ondelete='SET NULL',
+        states=STATES, depends=DEPENDS)
     lines = fields.One2Many(string='Lines', field='cashbook',
         model_name='cashbook.line',
         states=STATES, depends=DEPENDS)
+    reconciliations = fields.One2Many(string='Reconciliations',
+        field='cashbook', model_name='cashbook.recon',
+        states=STATES, depends=DEPENDS)
     account = fields.Many2One(string='Account', select=True,
         model_name='account.account', ondelete='RESTRICT',
         states=STATES, depends=DEPENDS)
diff --git a/line.py b/line.py
index 0484ab7..b95e4ae 100644
--- a/line.py
+++ b/line.py
@@ -77,6 +77,8 @@ class Line(Workflow, ModelSQL, ModelView):
         required=True, readonly=True, depends=['currency_digits'])
     credit = fields.Numeric(string='Credit', digits=(16, Eval('currency_digits', 2)),
         required=True, readonly=True, depends=['currency_digits'])
+    reconciliation = fields.Many2One(string='Reconciliation', readonly=True,
+        model_name='cashbook.recon', ondelete='SET NULL')
 
     balance = fields.Function(fields.Numeric(string='Balance',
         digits=(16, Eval('currency_digits', 2)),
@@ -494,7 +496,6 @@ class LineContext(ModelView):
         """ get number of accessible cashbooks,
             depends on user-permissions
         """
-        print('-- on_change_with_num_cashbook:', Transaction().context)
         LineContext = Pool().get('cashbook.line.context')
         return LineContext.default_num_cashbook()
 
diff --git a/locale/de.po b/locale/de.po
index 6ab03d3..621161a 100644
--- a/locale/de.po
+++ b/locale/de.po
@@ -110,6 +110,18 @@ msgctxt "model:ir.rule.group,name:rg_book_companies"
 msgid "User in companies"
 msgstr "Benutzer im Unternehmen"
 
+msgctxt "model:ir.rule.group,name:rg_recon_companies"
+msgid "User in companies"
+msgstr "Benutzer im Unternehmen"
+
+msgctxt "model:ir.rule.group,name:rg_recon_write_adm"
+msgid "Administrators: Reconciliation read/write"
+msgstr "Administratoren: Abstimmung bearbeiten"
+
+msgctxt "model:ir.rule.group,name:rg_recon_write"
+msgid "Owners and reviewers: Reconciliation write"
+msgstr "Eigentümer und Bearbeiter: Abstimmung bearbeiten"
+
 
 ##############
 # ir.ui.menu #
@@ -126,7 +138,7 @@ msgctxt "model:ir.ui.menu,name:menu_typeconfig"
 msgid "Cashbook Type"
 msgstr "Kassenbuchtyp"
 
-msgctxt "model:ir.ui.menu,name:menu_bookconfig"
+msgctxt "model:ir.ui.menu,name:menu_booklist"
 msgid "Cashbook"
 msgstr "Kassenbuch"
 
@@ -210,6 +222,18 @@ msgctxt "model:ir.model.button,string:book_wfarchive_button"
 msgid "Archive"
 msgstr "Archiv"
 
+msgctxt "model:ir.model.button,string:recon_wfedit_button"
+msgid "Edit"
+msgstr "Bearbeiten"
+
+msgctxt "model:ir.model.button,string:recon_wfcheck_button"
+msgid "Check"
+msgstr "Prüfen"
+
+msgctxt "model:ir.model.button,string:recon_wfdone_button"
+msgid "Done"
+msgstr "Fertig"
+
 
 #################
 # cashbook.book #
@@ -222,6 +246,10 @@ msgctxt "view:cashbook.book:"
 msgid "Owner and Authorizeds"
 msgstr "Eigentümer und Autorisierte"
 
+msgctxt "view:cashbook.book:"
+msgid "Reconciliations"
+msgstr "Abstimmungen"
+
 msgctxt "field:cashbook.book,name:"
 msgid "Name"
 msgstr "Name"
@@ -282,6 +310,18 @@ msgctxt "field:cashbook.book,start_balance:"
 msgid "Initial Amount"
 msgstr "Anfangsbetrag"
 
+msgctxt "field:cashbook.book,balance:"
+msgid "Balance"
+msgstr "Saldo"
+
+msgctxt "field:cashbook.book,reconciliations:"
+msgid "Reconciliations"
+msgstr "Abstimmungen"
+
+msgctxt "field:cashbook.book,lines:"
+msgid "Lines"
+msgstr "Zeilen"
+
 
 #################
 # cashbook.line #
@@ -406,6 +446,10 @@ msgctxt "help:cashbook.line,balance:"
 msgid "Balance of the cash book up to the current line, if the default sorting applies."
 msgstr "Saldo des Kassenbuchs bis zur aktuellen Zeile, sofern die Standardsortierung gilt."
 
+msgctxt "field:cashbook.line,reconciliation:"
+msgid "Reconciliation"
+msgstr "Abstimmung"
+
 
 #################
 # cashbook.type #
@@ -689,3 +733,71 @@ msgstr "Kategorie: Kontonummer zeigen"
 msgctxt "help:cashbook.configuration_user,cataccno:"
 msgid "Shows the number of the linked account in the name of a category."
 msgstr "Zeigt im Namen einer Kategorie die Nummer des verknüpften Kontos."
+
+
+##################
+# cashbook.recon #
+##################
+msgctxt "model:cashbook.recon,name:"
+msgid "Cashbook Reconciliation"
+msgstr "Kassenbuchabstimmung"
+
+msgctxt "view:cashbook.recon:"
+msgid "Reconciliation period"
+msgstr "Abstimmungszeitraum"
+
+msgctxt "view:cashbook.recon:"
+msgid "State"
+msgstr "Status"
+
+msgctxt "field:cashbook.recon,cashbook:"
+msgid "Cashbook"
+msgstr "Kassenbuch"
+
+msgctxt "field:cashbook.recon,date:"
+msgid "Date"
+msgstr "Datum"
+
+msgctxt "field:cashbook.recon,date_from:"
+msgid "Start Date"
+msgstr "Anfangsdatum"
+
+msgctxt "field:cashbook.recon,date_to:"
+msgid "End Date"
+msgstr "Endedatum"
+
+msgctxt "field:cashbook.recon,state:"
+msgid "State"
+msgstr "Status"
+
+msgctxt "selection:cashbook.recon,state:"
+msgid "Edit"
+msgstr "Bearbeiten"
+
+msgctxt "selection:cashbook.recon,state:"
+msgid "Check"
+msgstr "Prüfen"
+
+msgctxt "selection:cashbook.recon,state:"
+msgid "Done"
+msgstr "Fertig"
+
+msgctxt "field:cashbook.recon,lines:"
+msgid "Lines"
+msgstr "Zeilen"
+
+msgctxt "field:cashbook.recon,state_cashbook:"
+msgid "State of Cashbook"
+msgstr "Kassenbuchstatus"
+
+msgctxt "selection:cashbook.recon,state_cashbook:"
+msgid "Open"
+msgstr "Geöffnet"
+
+msgctxt "selection:cashbook.recon,state_cashbook:"
+msgid "Closed"
+msgstr "Geschlossen"
+
+msgctxt "selection:cashbook.recon,state_cashbook:"
+msgid "Archive"
+msgstr "Archiv"
diff --git a/menu.xml b/menu.xml
index 4dbd7e3..30094cd 100644
--- a/menu.xml
+++ b/menu.xml
@@ -30,19 +30,10 @@ full copyright notices and license terms. -->
             <field name="group" ref="group_cashbook"/>
         </record>
 
-        <!-- menu: /Cashbook/Configuration/Cashbook -->
-        <menuitem id="menu_bookconfig" action="act_book_view"
-            icon="tryton-list"
-            parent="menu_config" sequence="10"/>
-        <record model="ir.ui.menu-res.group" id="menu_bookconfig-group_admin">
-            <field name="menu" ref="menu_bookconfig"/>
-            <field name="group" ref="res.group_admin"/>
-        </record>
-
         <!-- menu: /Cashbook/Configuration/Types -->
         <menuitem id="menu_typeconfig" action="act_type_view"
             icon="tryton-list"
-            parent="menu_config"  sequence="20"/>
+            parent="menu_config"  sequence="10"/>
         <record model="ir.ui.menu-res.group" id="menu_typeconfig-group_admin">
             <field name="menu" ref="menu_typeconfig"/>
             <field name="group" ref="res.group_admin"/>
@@ -51,7 +42,7 @@ full copyright notices and license terms. -->
         <!-- menu: /Cashbook/Configuration/Category -->
         <menuitem id="menu_category" action="act_category_tree"
             icon="tryton-tree"
-            parent="menu_config"  sequence="30"/>
+            parent="menu_config"  sequence="20"/>
         <record model="ir.ui.menu-res.group" id="menu_category-group_admin">
             <field name="menu" ref="menu_category"/>
             <field name="group" ref="res.group_admin"/>
@@ -59,7 +50,7 @@ full copyright notices and license terms. -->
         <!-- menu: /Cashbook/Configuration/Category/Category -->
         <menuitem id="menu_category_list" action="act_category_list"
             icon="tryton-list"
-            parent="menu_category"  sequence="30"/>
+            parent="menu_category"  sequence="10"/>
         <record model="ir.ui.menu-res.group" id="menu_category_list-group_admin">
             <field name="menu" ref="menu_category_list"/>
             <field name="group" ref="res.group_admin"/>
@@ -69,6 +60,27 @@ full copyright notices and license terms. -->
         <menuitem id="menu_open_lines" action="act_open_lines"
             icon="tryton-list"
             parent="menu_cashbook" sequence="20"/>
+        <record model="ir.ui.menu-res.group" id="menu_open_lines-group_admin">
+            <field name="menu" ref="menu_open_lines"/>
+            <field name="group" ref="res.group_admin"/>
+        </record>
+        <record model="ir.ui.menu-res.group" id="menu_open_lines-group_cashbook">
+            <field name="menu" ref="menu_open_lines"/>
+            <field name="group" ref="group_cashbook"/>
+        </record>
+
+        <!-- menu: /Cashbook/Cashbook -->
+        <menuitem id="menu_booklist" action="act_book_view"
+            icon="tryton-list"
+            parent="menu_cashbook" sequence="30"/>
+        <record model="ir.ui.menu-res.group" id="menu_booklist-group_admin">
+            <field name="menu" ref="menu_booklist"/>
+            <field name="group" ref="res.group_admin"/>
+        </record>
+        <record model="ir.ui.menu-res.group" id="menu_booklist-group_cashbook">
+            <field name="menu" ref="menu_booklist"/>
+            <field name="group" ref="group_cashbook"/>
+        </record>
 
     </data>
 </tryton>
diff --git a/reconciliation.py b/reconciliation.py
new file mode 100644
index 0000000..6105259
--- /dev/null
+++ b/reconciliation.py
@@ -0,0 +1,151 @@
+# -*- coding: utf-8 -*-
+# This file is part of the cashbook-module from m-ds for Tryton.
+# The COPYRIGHT file at the top level of this repository contains the
+# full copyright notices and license terms.
+
+from trytond.model import Workflow, ModelView, ModelSQL, fields, Unique
+from trytond.transaction import Transaction
+from trytond.pyson import Eval, If, Or
+from trytond.pool import Pool
+from trytond.report import Report
+from decimal import Decimal
+from .book import sel_state_book
+
+
+sel_reconstate = [
+    ('edit', 'Edit'),
+    ('check', 'Check'),
+    ('done', 'Done'),
+    ]
+
+STATES = {
+    'readonly': Or(
+            Eval('state', '') != 'edit',
+            Eval('state_cashbook', '') != 'open',
+        ),
+    }
+DEPENDS=['state', 'state_cashbook']
+
+
+class Reconciliation(Workflow, ModelSQL, ModelView):
+    'Cashbook Reconciliation'
+    __name__ = 'cashbook.recon'
+
+    cashbook = fields.Many2One(string='Cashbook', required=True, select=True,
+        model_name='cashbook.book', ondelete='CASCADE', readonly=True)
+    date = fields.Date(string='Date', required=True, select=True,
+        states=STATES, depends=DEPENDS)
+
+    date_from = fields.Date(string='Start Date',
+        required=True,
+        domain=[
+            If(Eval('date_to') & Eval('date_from'),
+                ('date_from', '<=', Eval('date_to')),
+                ()),
+            ],
+        states=STATES, depends=DEPENDS+['date_to'])
+    date_to = fields.Date(string='End Date',
+        required=True,
+        domain=[
+            If(Eval('date_to') & Eval('date_from'),
+                ('date_from', '<=', Eval('date_to')),
+                ()),
+            ],
+        states=STATES, depends=DEPENDS+['date_from'])
+    lines = fields.One2Many(string='Lines', field='reconciliation',
+        model_name='cashbook.line', states=STATES,
+        depends=DEPENDS+['date_from', 'date_to', 'cashbook'],
+        add_remove=[
+            ('cashbook', '=', Eval('cashbook')),
+            ('date', '>=', Eval('date_from')),
+            ('date', '<=', Eval('date_to')),
+        ],
+        domain=[
+            ('date', '>=', Eval('date_from')),
+            ('date', '<=', Eval('date_to')),
+        ])
+
+    state = fields.Selection(string='State', required=True, readonly=True,
+        select=True, selection=sel_reconstate)
+    state_string = state.translated('state')
+    state_cashbook = fields.Function(fields.Selection(string='State of Cashbook',
+        readonly=True, states={'invisible': True}, selection=sel_state_book),
+        'on_change_with_state_cashbook')
+
+    @classmethod
+    def __setup__(cls):
+        super(Reconciliation, cls).__setup__()
+        cls._order.insert(0, ('date_from', 'ASC'))
+        cls._transitions |= set((
+                ('edit', 'check'),
+                ('check', 'done'),
+                ('check', 'edit'),
+            ))
+        cls._buttons.update({
+            'wfedit': {
+                'invisible': Eval('state', '') != 'check',
+                'depends': ['state'],
+                },
+            'wfcheck': {
+                'invisible': Eval('state') != 'edit',
+                'depends': ['state'],
+                },
+            'wfdone': {
+                'invisible': Eval('state') != 'check',
+                'depends': ['state'],
+                },
+            })
+
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('edit')
+    def wfedit(cls, lines):
+        """ edit
+        """
+        pass
+
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('check')
+    def wfcheck(cls, lines):
+        """ is checked
+        """
+        pass
+
+    @classmethod
+    @ModelView.button
+    @Workflow.transition('done')
+    def wfdone(cls, lines):
+        """ is done
+        """
+        pass
+
+    def get_rec_name(self, name):
+        """ short + name
+        """
+        return '%(from)s - %(to)s: %(amount)s %(symbol)s' % {
+            'from': Report.format_date(self.date_from, None) if self.date_from is not None else '-',
+            'to': Report.format_date(self.date_to, None) if self.date_to is not None else '-',
+            'amount': Decimal('0.0'),
+            'symbol': getattr(getattr(self.cashbook, 'currency', None), 'symbol', '-'),
+            }
+
+    @classmethod
+    def default_state(cls):
+        return 'edit'
+
+    @classmethod
+    def default_date(cls):
+        """ today
+        """
+        IrDate = Pool().get('ir.date')
+        return IrDate.today()
+
+    @fields.depends('cashbook', '_parent_cashbook.state')
+    def on_change_with_state_cashbook(self, name=None):
+        """ get state of cashbook
+        """
+        if self.cashbook:
+            return self.cashbook.state
+
+# end Type
diff --git a/reconciliation.xml b/reconciliation.xml
new file mode 100644
index 0000000..2ee17fb
--- /dev/null
+++ b/reconciliation.xml
@@ -0,0 +1,196 @@
+<?xml version="1.0"?>
+<!-- This file is part of the cashbook-module from m-ds for Tryton.
+The COPYRIGHT file at the top level of this repository contains the
+full copyright notices and license terms. -->
+<tryton>
+    <data>
+
+        <!-- views -->
+        <record model="ir.ui.view" id="recon_view_list">
+            <field name="model">cashbook.recon</field>
+            <field name="type">tree</field>
+            <field name="priority" eval="10"/>
+            <field name="name">recon_list</field>
+        </record>
+        <record model="ir.ui.view" id="recon_view_form">
+            <field name="model">cashbook.recon</field>
+            <field name="type">form</field>
+            <field name="priority" eval="20"/>
+            <field name="name">recon_form</field>
+        </record>
+
+        <!-- action view-->
+        <record model="ir.action.act_window" id="act_recon_view">
+            <field name="name">Cashbook Reconciliation</field>
+            <field name="res_model">cashbook.recon</field>
+        </record>
+        <record model="ir.action.act_window.view" id="act_recon_view-1">
+            <field name="sequence" eval="10"/>
+            <field name="view" ref="recon_view_list"/>
+            <field name="act_window" ref="act_recon_view"/>
+        </record>
+        <record model="ir.action.act_window.view" id="act_recon_view-2">
+            <field name="sequence" eval="20"/>
+            <field name="view" ref="recon_view_form"/>
+            <field name="act_window" ref="act_recon_view"/>
+        </record>
+
+        <!-- permission -->
+        <!-- anon: deny all -->
+        <record model="ir.model.access" id="access_recon-anon">
+            <field name="model" search="[('model', '=', 'cashbook.recon')]"/>
+            <field name="perm_read" eval="False"/>
+            <field name="perm_write" eval="False"/>
+            <field name="perm_create" eval="False"/>
+            <field name="perm_delete" eval="False"/>
+        </record>
+        <!-- admin: read/write -->
+        <record model="ir.model.access" id="access_recon-group_admin">
+            <field name="model" search="[('model', '=', 'cashbook.recon')]"/>
+            <field name="group" ref="res.group_admin"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="True"/>
+            <field name="perm_create" eval="True"/>
+            <field name="perm_delete" eval="True"/>
+        </record>
+        <!-- cashbook: read/write -->
+        <record model="ir.model.access" id="access_recon-group_cashbook">
+            <field name="model" search="[('model', '=', 'cashbook.recon')]"/>
+            <field name="group" ref="group_cashbook"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="True"/>
+            <field name="perm_create" eval="True"/>
+            <field name="perm_delete" eval="True"/>
+        </record>
+
+        <!-- permission by rule - admin -->
+        <record model="ir.rule.group" id="rg_recon_write_adm">
+            <field name="model" search="[('model', '=', 'cashbook.recon')]"/>
+            <field name="name">Administrators: Reconciliation read/write</field>
+            <field name="global_p" eval="False"/>
+            <field name="default_p" eval="False"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="True"/>
+            <field name="perm_create" eval="True"/>
+            <field name="perm_delete" eval="True"/>
+        </record>
+        <record model="ir.rule" id="rg_recon_write_adm-1">
+            <field name="domain" eval="[]" pyson="1"/>
+            <field name="rule_group" ref="rg_recon_write_adm"/>
+        </record>
+        <record model="ir.rule.group-res.group" id="rg_recon_write_adm-group_admin">
+            <field name="rule_group" ref="rg_recon_write_adm"/>
+            <field name="group" ref="res.group_admin"/>
+        </record>
+
+        <!-- permission by rule - read/write: owner, reviewer -->
+        <record model="ir.rule.group" id="rg_recon_write">
+            <field name="model" search="[('model', '=', 'cashbook.recon')]"/>
+            <field name="name">Owners and reviewers: Reconciliation write</field>
+            <field name="global_p" eval="False"/>
+            <field name="default_p" eval="False"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="True"/>
+            <field name="perm_create" eval="True"/>
+            <field name="perm_delete" eval="True"/>
+        </record>
+        <record model="ir.rule" id="rg_recon_write-1">
+            <field name="domain" eval="['OR',
+                    ('cashbook.owner.id', '=', Eval('user', {}).get('id', -1)),
+                    ('cashbook.reviewer.id', 'in', Eval('user', {}).get('groups', [])),
+                ]" pyson="1"/>
+            <field name="rule_group" ref="rg_recon_write"/>
+        </record>
+        <record model="ir.rule.group-res.group" id="rg_recon_write-group_cashbook">
+            <field name="rule_group" ref="rg_recon_write"/>
+            <field name="group" ref="group_cashbook"/>
+        </record>
+
+        <!-- permission by rule - read: observer -->
+        <record model="ir.rule.group" id="rg_recon_read">
+            <field name="model" search="[('model', '=', 'cashbook.recon')]"/>
+            <field name="name">Observer: Reconciliation read</field>
+            <field name="global_p" eval="False"/>
+            <field name="default_p" eval="False"/>
+            <field name="perm_read" eval="True"/>
+            <field name="perm_write" eval="False"/>
+            <field name="perm_create" eval="False"/>
+            <field name="perm_delete" eval="False"/>
+        </record>
+        <record model="ir.rule" id="rg_recon_read-1">
+            <field name="domain" eval="[
+                    ('cashbook.observer.id', 'in', Eval('user', {}).get('groups', [])),
+                ]" pyson="1"/>
+            <field name="rule_group" ref="rg_recon_read"/>
+        </record>
+        <record model="ir.rule.group-res.group" id="rg_recon_read-group_cashbook">
+            <field name="rule_group" ref="rg_recon_read"/>
+            <field name="group" ref="group_cashbook"/>
+        </record>
+
+        <record model="ir.rule.group" id="rg_recon_companies">
+            <field name="name">User in companies</field>
+            <field name="model"
+                search="[('model', '=', 'cashbook.recon')]"/>
+            <field name="global_p" eval="True"/>
+        </record>
+        <record model="ir.rule" id="r_recon_companies">
+            <field name="domain"
+                eval="[('cashbook.company', 'in', Eval('companies', []))]"
+                pyson="1"/>
+            <field name="rule_group" ref="rg_recon_companies"/>
+        </record>
+
+        <!-- button - edit -->
+        <record model="ir.model.button" id="recon_wfedit_button">
+            <field name="name">wfedit</field>
+            <field name="string">Edit</field>
+            <field name="model" search="[('model', '=', 'cashbook.recon')]"/>
+        </record>
+        <record model="ir.model.button-res.group"
+            id="recon_wfedit_button-group_admin">
+            <field name="button" ref="recon_wfedit_button"/>
+            <field name="group" ref="res.group_admin"/>
+        </record>
+        <record model="ir.model.button-res.group"
+            id="recon_wfedit_button-group_cashbook_doneline">
+            <field name="button" ref="recon_wfedit_button"/>
+            <field name="group" ref="group_cashbook_doneline"/>
+        </record>
+
+        <!-- button - check -->
+        <record model="ir.model.button" id="recon_wfcheck_button">
+            <field name="name">wfcheck</field>
+            <field name="string">Check</field>
+            <field name="model" search="[('model', '=', 'cashbook.recon')]"/>
+        </record>
+        <record model="ir.model.button-res.group"
+            id="recon_wfcheck_button-group_admin">
+            <field name="button" ref="recon_wfcheck_button"/>
+            <field name="group" ref="res.group_admin"/>
+        </record>
+        <record model="ir.model.button-res.group"
+            id="recon_wfcheck_button-group_cashbook_doneline">
+            <field name="button" ref="recon_wfcheck_button"/>
+            <field name="group" ref="group_cashbook_doneline"/>
+        </record>
+
+        <!-- button - done -->
+        <record model="ir.model.button" id="recon_wfdone_button">
+            <field name="name">wfdone</field>
+            <field name="string">Done</field>
+            <field name="model" search="[('model', '=', 'cashbook.recon')]"/>
+        </record>
+        <record model="ir.model.button-res.group"
+            id="recon_wfdone_button-group_admin">
+            <field name="button" ref="recon_wfdone_button"/>
+            <field name="group" ref="res.group_admin"/>
+        </record>
+        <record model="ir.model.button-res.group"
+            id="recon_wfdone_button-group_cashbook_doneline">
+            <field name="button" ref="recon_wfdone_button"/>
+            <field name="group" ref="group_cashbook_doneline"/>
+        </record>
+
+    </data>
+</tryton>
diff --git a/tryton.cfg b/tryton.cfg
index 065201a..849f0af 100644
--- a/tryton.cfg
+++ b/tryton.cfg
@@ -10,6 +10,7 @@ xml:
     message.xml
     types.xml
     category.xml
+    reconciliation.xml
     configuration.xml
     book.xml
     line.xml
diff --git a/view/book_form.xml b/view/book_form.xml
index 863bade..eaf242c 100644
--- a/view/book_form.xml
+++ b/view/book_form.xml
@@ -2,9 +2,9 @@
 <!-- This file is part of the cashbook-module from m-ds for Tryton.
 The COPYRIGHT file at the top level of this repository contains the
 full copyright notices and license terms. -->
-<form>
+<form col="6">
     <label name="name"/>
-    <field name="name"/>
+    <field name="name" colspan="3"/>
     <label name="btype"/>
     <field name="btype"/>
 
@@ -12,27 +12,36 @@ full copyright notices and license terms. -->
     <field name="currency"/>
     <label name="account"/>
     <field name="account"/>
+    <group id="grpst" colspan="2" col="3">
+        <label name="state"/>
+        <field name="state"/>
+        <group id="grpstate" col="3">
+            <button name="wfopen"/>
+            <button name="wfclosed"/>
+            <button name="wfarchive"/>
+        </group>
+    </group>
 
     <label name="start_balance"/>
     <field name="start_balance"/>
+    <label name="balance"/>
+    <field name="balance"/>
     <newline/>
 
-    <label name="state"/>
-    <field name="state"/>
-    <group id="grpstate" col="3" colspan="2">
-        <button name="wfopen"/>
-        <button name="wfclosed"/>
-        <button name="wfarchive"/>
-    </group>
+    <notebook colspan="6">
+        <page id="pgrecon" string="Reconciliations" col="1">
+            <field name="reconciliations"/>
+        </page>
+        <page id="pgperm" string="Owner and Authorizeds" col="4">
+            <label name="owner"/>
+            <field name="owner"/>
+            <newline/>
 
-    <separator id="sepperm" string="Owner and Authorizeds" colspan="4"/>
-    <label name="owner"/>
-    <field name="owner"/>
-    <newline/>
-
-    <label name="reviewer"/>
-    <field name="reviewer"/>
-    <label name="observer"/>
-    <field name="observer"/>
+            <label name="reviewer"/>
+            <field name="reviewer"/>
+            <label name="observer"/>
+            <field name="observer"/>
+        </page>
+    </notebook>
 
 </form>
diff --git a/view/book_list.xml b/view/book_list.xml
index 74acad6..e3afce4 100644
--- a/view/book_list.xml
+++ b/view/book_list.xml
@@ -6,6 +6,7 @@ full copyright notices and license terms. -->
     <field name="name"/>
     <field name="btype"/>
     <field name="start_balance"/>
+    <field name="balance"/>
     <field name="currency"/>
     <field name="account"/>
     <field name="owner"/>
diff --git a/view/line_form.xml b/view/line_form.xml
index 45f03c6..aa45808 100644
--- a/view/line_form.xml
+++ b/view/line_form.xml
@@ -19,7 +19,8 @@ full copyright notices and license terms. -->
     <field name="date"/>
     <label name="bookingtype"/>
     <field name="bookingtype"/>
-    <newline/>
+    <label name="reconciliation"/>
+    <field name="reconciliation"/>
 
     <label name="category"/>
     <field name="category"/>
diff --git a/view/recon_form.xml b/view/recon_form.xml
new file mode 100644
index 0000000..94ce19b
--- /dev/null
+++ b/view/recon_form.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+<!-- This file is part of the cashbook-module from m-ds for Tryton.
+The COPYRIGHT file at the top level of this repository contains the
+full copyright notices and license terms. -->
+<form col="6">
+    <label name="cashbook"/>
+    <field name="cashbook"/>
+    <newline/>
+
+    <separator id="sep1" string="Reconciliation period" colspan="4"/>
+    <separator id="sep2" string="State" colspan="2"/>
+
+    <label name="date_from"/>
+    <field name="date_from"/>
+    <label name="date_to"/>
+    <field name="date_to"/>
+
+    <field name="state"/>
+    <group id="grpstate" col="3">
+        <button name="wfedit"/>
+        <button name="wfcheck"/>
+        <button name="wfdone"/>
+    </group>
+
+    <label id="lab1" string=" " colspan="4"/>
+    <label name="date"/>
+    <field name="date"/>
+    <newline/>
+
+    <field name="lines" colspan="6"/>
+</form>
diff --git a/view/recon_list.xml b/view/recon_list.xml
new file mode 100644
index 0000000..6d49b47
--- /dev/null
+++ b/view/recon_list.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0"?>
+<!-- This file is part of the cashbook-module from m-ds for Tryton.
+The COPYRIGHT file at the top level of this repository contains the
+full copyright notices and license terms. -->
+<tree>
+    <field name="cashbook"/>
+    <field name="date"/>
+    <field name="date_from"/>
+    <field name="date_to"/>
+    <field name="lines"/>
+    <field name="state"/>
+</tree>