diff --git a/addons/account_analytic_analysis/account_analytic_analysis_view.xml b/addons/account_analytic_analysis/account_analytic_analysis_view.xml
index 7678dc59f75..e1708cdd018 100644
--- a/addons/account_analytic_analysis/account_analytic_analysis_view.xml
+++ b/addons/account_analytic_analysis/account_analytic_analysis_view.xml
@@ -116,13 +116,21 @@
                         </tr>
                     </table>
                     <group name='invoice_on_timesheets' attrs="{'invisible': [('invoice_on_timesheets','=',False)]}">
-                        <field name="pricelist_id"
-                            class="oe_inline"
-                            attrs="{'required': [('invoice_on_timesheets', '=', True)]}"/>
-                        <field name="to_invoice"
-                            class="oe_inline"
-                            widget="selection"
-                            attrs="{'required': [('invoice_on_timesheets', '=', True)]}"/>
+                        <p class="oe_grey oe_edit_only" colspan="2">
+                            When invoicing on timesheet, OpenERP uses the
+                            pricelist of the contract which uses the price
+                            defined on the product related to each employee to
+                            define the customer invoice price rate.
+                        </p>
+                        <group>
+                            <field name="pricelist_id"
+                                class="oe_inline"
+                                attrs="{'required': [('invoice_on_timesheets', '=', True)]}"/>
+                            <field name="to_invoice"
+                                class="oe_inline"
+                                widget="selection"
+                                attrs="{'required': [('invoice_on_timesheets', '=', True)]}"/>
+                        </group>
                     </group>
                  </xpath>
             </field>
diff --git a/addons/analytic/analytic.py b/addons/analytic/analytic.py
index 5ea8c59b848..369dbc829c2 100644
--- a/addons/analytic/analytic.py
+++ b/addons/analytic/analytic.py
@@ -156,7 +156,7 @@ class account_analytic_account(osv.osv):
         'debit': fields.function(_debit_credit_bal_qtty, type='float', string='Debit', multi='debit_credit_bal_qtty', digits_compute=dp.get_precision('Account')),
         'credit': fields.function(_debit_credit_bal_qtty, type='float', string='Credit', multi='debit_credit_bal_qtty', digits_compute=dp.get_precision('Account')),
         'quantity': fields.function(_debit_credit_bal_qtty, type='float', string='Quantity', multi='debit_credit_bal_qtty'),
-        'quantity_max': fields.float('Prepaid Units', help='Sets the higher limit of time to work on the contract.'),
+        'quantity_max': fields.float('Prepaid Units', help='Sets the higher limit of time to work on the contract, based on the timesheet.'),
         'partner_id': fields.many2one('res.partner', 'Customer'),
         'user_id': fields.many2one('res.users', 'Project Manager'),
         'manager_id': fields.many2one('res.users', 'Account Manager'),
diff --git a/addons/analytic_user_function/analytic_user_function.py b/addons/analytic_user_function/analytic_user_function.py
index 9233845f7eb..c3338cd3c84 100644
--- a/addons/analytic_user_function/analytic_user_function.py
+++ b/addons/analytic_user_function/analytic_user_function.py
@@ -21,39 +21,51 @@
 
 from osv import fields,osv
 from tools.translate import _
+import decimal_precision as dp
 
 class analytic_user_funct_grid(osv.osv):
-
     _name="analytic.user.funct.grid"
-    _description= "Relation table between users and products on a analytic account"
+    _description= "Price per User"
     _columns={
         'user_id': fields.many2one("res.users", "User", required=True,),
-        'product_id': fields.many2one("product.product", "Product", required=True,),
+        'product_id': fields.many2one("product.product", "Service", required=True,),
         'account_id': fields.many2one("account.analytic.account", "Analytic Account", required=True,),
-        }
+        'uom_id': fields.related("product_id", "uom_id", relation="product.uom", string="Unit of Measure", type="many2one", readonly=True),
+        'price': fields.float('Price', digits_compute=dp.get_precision('Product Price'), help="Price per hour for this user.", required=True),
+    }
+    def onchange_user_product_id(self, cr, uid, ids, user_id, product_id, context=None):
+        if not user_id:
+            return {}
+        emp_obj = self.pool.get('hr.employee')
+        emp_id = emp_obj.search(cr, uid, [('user_id', '=', user_id)], context=context)
+        if not emp_id:
+            return {}
 
-analytic_user_funct_grid()
+        value = {}
+        emp = emp_obj.browse(cr, uid, emp_id[0], context=context)
+        if emp.product_id and not product_id:
+            value['product_id'] = emp.product_id.id
+            prod = emp.product_id
+        if product_id:
+            prod = self.pool.get('product.product').browse(cr, uid, product_id, context=context)
+        if prod:
+            value['price'] = prod.list_price
+            value['uom_id'] = prod.uom_id.id
+        return {'value': value}
 
 
 class account_analytic_account(osv.osv):
-
     _inherit = "account.analytic.account"
     _columns = {
         'user_product_ids': fields.one2many('analytic.user.funct.grid', 'account_id', 'Users/Products Rel.'),
     }
 
-account_analytic_account()
-
 
 class hr_analytic_timesheet(osv.osv):
-
     _inherit = "hr.analytic.timesheet"
-
-
     # Look in account, if no value for the user => look in parent until there is no more parent to look
     # Take the first found... if nothing found => return False
     def _get_related_user_account_recursiv(self, cr, uid, user_id, account_id):
-
         temp=self.pool.get('analytic.user.funct.grid').search(cr, uid, [('user_id', '=', user_id),('account_id', '=', account_id) ])
         account=self.pool.get('account.analytic.account').browse(cr, uid, account_id)
         if temp:
@@ -64,7 +76,6 @@ class hr_analytic_timesheet(osv.osv):
             else:
                 return False
 
-
     def on_change_account_id(self, cr, uid, ids, account_id, user_id=False, unit_amount=0):
         res = {}
         if not (account_id):
@@ -106,12 +117,6 @@ class hr_analytic_timesheet(osv.osv):
         return res
 
     def on_change_user_id(self, cr, uid, ids, user_id, account_id, unit_amount=0):
-        res = {}
-        if not (user_id):
-            #avoid a useless call to super
-            return res
-
-        #get the old values from super
         res = super(hr_analytic_timesheet, self).on_change_user_id(cr, uid, ids, user_id)
 
         if account_id:
@@ -143,5 +148,3 @@ class hr_analytic_timesheet(osv.osv):
 
 hr_analytic_timesheet()
 
-
-# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
diff --git a/addons/analytic_user_function/analytic_user_function_view.xml b/addons/analytic_user_function/analytic_user_function_view.xml
index 6fa141f480d..490b3026d7f 100644
--- a/addons/analytic_user_function/analytic_user_function_view.xml
+++ b/addons/analytic_user_function/analytic_user_function_view.xml
@@ -7,9 +7,11 @@
             <field name="name">analytic_user_funct_grid.tree</field>
             <field name="model">analytic.user.funct.grid</field>
             <field name="arch" type="xml">
-                <tree string="User's Product for this Analytic Account" editable="bottom">
-                    <field name="user_id" required="1"/>
-                    <field name="product_id" required="1" />
+                <tree string="Invoicing Data" editable="bottom">
+                    <field name="user_id" on_change="onchange_user_product_id(user_id, product_id)"/>
+                    <field name="product_id" on_change="onchange_user_product_id(user_id, product_id)" domain="[('type','=','service')]"/>
+                    <field name="price"/>
+                    <field name="uom_id"/>
                 </tree>
             </field>
         </record>
@@ -18,9 +20,13 @@
             <field name="name">analytic_user_funct_grid.form</field>
             <field name="model">analytic.user.funct.grid</field>
             <field name="arch" type="xml">
-                <form string="User's Product for this Analytic Account">
-                    <field name="user_id" required="1"/>
-                    <field name="product_id" required="1"/>
+                <form string="Invoicing Data">
+                    <group>
+                        <field name="user_id" on_change="onchange_user_product_id(user_id, product_id)"/>
+                        <field name="product_id" domain="[('type','=','service')]" on_change="onchange_user_product_id(user_id, product_id)"/>
+                        <field name="price"/>
+                        <field name="uom_id"/>
+                    </group>
                 </form>
             </field>
         </record>
@@ -29,13 +35,26 @@
         <record model="ir.ui.view" id="view_account_analytic_account_form_inherit">
             <field name="name">account.analytic.account.form</field>
             <field name="model">account.analytic.account</field>
+            <field eval="60" name="priority"/>
             <field name="inherit_id" ref="analytic.view_account_analytic_account_form"/>
             <field name="arch" type="xml">
-                <xpath expr="//notebook/page" position="after">
-                    <page string="Users/Products Rel.">
-                        <field name="user_product_ids" colspan="4" nolabel="1"/>
-                    </page>
-                </xpath>
+                <separator name="description" position="before">
+                    <div name="user_function_price" attrs="{'invisible': [('invoice_on_timesheets','=',False)]}">
+                        <separator string="Invoice Price Rate per User"/>
+                        <p class="oe_grey oe_edit_only">
+                            Define a specific service (e.g. Senior Consultant)
+                            and price for some users to use these data instead
+                            of the default values when invoicing the customer.
+                        </p>
+                        <p class="oe_grey oe_edit_only">
+                            OpenERP will recursively search on parent accounts
+                            to check if specific conditions are defined for a
+                            specific user. This allows to set invoicing
+                            conditions for a group of contracts.
+                        </p>
+                        <field name="user_product_ids"/>
+                    </div>
+                </separator>
             </field>
         </record>
 
diff --git a/addons/hr_timesheet_invoice/hr_timesheet_invoice.py b/addons/hr_timesheet_invoice/hr_timesheet_invoice.py
index 67fcb100468..88094b4a0e0 100644
--- a/addons/hr_timesheet_invoice/hr_timesheet_invoice.py
+++ b/addons/hr_timesheet_invoice/hr_timesheet_invoice.py
@@ -70,8 +70,7 @@ class account_analytic_account(osv.osv):
         'amount_invoiced': fields.function(_invoiced_calc, string='Invoiced Amount',
             help="Total invoiced"),
         'to_invoice': fields.many2one('hr_timesheet_invoice.factor', 'Timesheet Invoicing Ratio',
-            help="This field allows you to define the rate in case you plan to reinvoice " \
-            "the costs in this analytic account: timesheets, expenses, ..."),
+            help="You usually invoice 100% of the timesheets. But if you mix fixed price and timesheet invoicing, you may use another ratio. For instance, if you do a 20% advance invoice (fixed price, based on a sale order), you should invoice the rest on timesheet with a 80% ratio."),
     }
     _defaults = {
         'pricelist_id': lambda self, cr, uid, ctx: ctx.get('pricelist_id', False),