diff --git a/modules/purchase_trade/__init__.py b/modules/purchase_trade/__init__.py
index b2fa644..3ef10bb 100755
--- a/modules/purchase_trade/__init__.py
+++ b/modules/purchase_trade/__init__.py
@@ -28,6 +28,7 @@ from . import (
     open_position,
     credit_risk,
     valuation,
+    dimension,
     weight_report,
     service,
 )
@@ -164,6 +165,9 @@ def register():
         purchase.DocTemplate,
         purchase.DocTypeTemplate,
         purchase.PurchaseStrategy,
+        dimension.AnalyticDimension,
+        dimension.AnalyticDimensionValue,
+        dimension.AnalyticDimensionAssignment,
         weight_report.WeightReport,
         module='purchase', type_='model')
     Pool.register(
diff --git a/modules/purchase_trade/dimension.py b/modules/purchase_trade/dimension.py
new file mode 100644
index 0000000..ab3745c
--- /dev/null
+++ b/modules/purchase_trade/dimension.py
@@ -0,0 +1,79 @@
+from trytond.model import fields
+from trytond.pool import Pool, PoolMeta
+from trytond.pyson import Bool, Eval, Id
+from trytond.model import (ModelSQL, ModelView)
+from trytond.tools import is_full_text, lstrip_wildcard
+from trytond.transaction import Transaction, inactive_records
+from decimal import getcontext, Decimal, ROUND_HALF_UP
+from sql.aggregate import Count, Max, Min, Sum, Avg, BoolOr
+from sql.conditionals import Case
+from sql import Column, Literal
+from sql.functions import CurrentTimestamp, DateTrunc
+from trytond.wizard import Button, StateTransition, StateView, Wizard
+import datetime
+import logging
+
+class AnalyticDimension(ModelSQL, ModelView):
+    'Analytic Dimension'
+    __name__ = 'analytic.dimension'
+
+    name = fields.Char('Name', required=True)
+    code = fields.Char('Code', required=True)
+    active = fields.Boolean('Active')
+
+class AnalyticDimensionValue(ModelSQL, ModelView):
+    'Analytic Dimension Value'
+    __name__ = 'analytic.dimension.value'
+
+    dimension = fields.Many2One(
+        'analytic.dimension',
+        'Dimension',
+        required=True,
+        ondelete='CASCADE'
+    )
+
+    name = fields.Char('Name', required=True)
+    code = fields.Char('Code')
+
+    parent = fields.Many2One(
+        'analytic.dimension.value',
+        'Parent',
+        domain=[
+            ('dimension', '=', Eval('dimension')),
+        ],
+        depends=['dimension']
+    )
+
+    children = fields.One2Many(
+        'analytic.dimension.value',
+        'parent',
+        'Children'
+    )
+
+    active = fields.Boolean('Active')
+
+class AnalyticDimensionAssignment(ModelSQL, ModelView):
+    'Analytic Dimension Assignment'
+    __name__ = 'analytic.dimension.assignment'
+
+    dimension = fields.Many2One(
+        'analytic.dimension',
+        'Dimension',
+        required=True
+    )
+
+    value = fields.Many2One(
+        'analytic.dimension.value',
+        'Value',
+        required=True,
+        domain=[
+            ('dimension', '=', Eval('dimension')),
+        ],
+        depends=['dimension']
+    )
+
+    purchase = fields.Many2One(
+        'purchase.purchase',
+        'Purchase',
+        ondelete='CASCADE'
+    )
\ No newline at end of file
diff --git a/modules/purchase_trade/dimension.xml b/modules/purchase_trade/dimension.xml
new file mode 100644
index 0000000..bd896cf
--- /dev/null
+++ b/modules/purchase_trade/dimension.xml
@@ -0,0 +1,34 @@
+<tryton>
+    <data>
+        <record model="ir.ui.view" id="dimension_view_form">
+            <field name="model">analytic.dimension</field>
+            <field name="type">form</field>
+            <field name="name">dimension_form</field>
+        </record>
+        <record model="ir.ui.view" id="dimension_view_list">
+            <field name="model">analytic.dimension</field>
+            <field name="type">tree</field>
+            <field name="name">dimension_tree</field>
+        </record>
+        <record model="ir.ui.view" id="dimension_value_view_form">
+            <field name="model">analytic.dimension.value</field>
+            <field name="type">form</field>
+            <field name="name">dimension_value_form</field>
+        </record>
+        <record model="ir.ui.view" id="dimension_value_view_list">
+            <field name="model">analytic.dimension.value</field>
+            <field name="type">tree</field>
+            <field name="name">dimension_value_tree</field>
+        </record>
+        <record model="ir.ui.view" id="dimension_ass_view_form">
+            <field name="model">analytic.dimension.assignment</field>
+            <field name="type">form</field>
+            <field name="name">dimension_ass_form</field>
+        </record>
+        <record model="ir.ui.view" id="dimension_ass_view_list">
+            <field name="model">analytic.dimension.assignment</field>
+            <field name="type">tree</field>
+            <field name="name">dimension_ass_tree</field>
+        </record>
+    </data>
+</tryton>
\ No newline at end of file
diff --git a/modules/purchase_trade/purchase.py b/modules/purchase_trade/purchase.py
index fe05f6c..228e79c 100755
--- a/modules/purchase_trade/purchase.py
+++ b/modules/purchase_trade/purchase.py
@@ -269,6 +269,11 @@ class Purchase(metaclass=PoolMeta):
     doc_template = fields.Many2One('doc.template',"Template")
     required_documents = fields.Many2Many(
         'contract.document.type', 'purchase', 'doc_type', 'Required Documents')
+    analytic_dimensions = fields.One2Many(
+        'analytic.dimension.assignment',
+        'purchase',
+        'Analytic Dimensions'
+    )
 
     @classmethod
     def default_viewer(cls):
diff --git a/modules/purchase_trade/tryton.cfg b/modules/purchase_trade/tryton.cfg
index 5686126..16a1f53 100755
--- a/modules/purchase_trade/tryton.cfg
+++ b/modules/purchase_trade/tryton.cfg
@@ -30,4 +30,5 @@ xml:
     global_reporting.xml
     derivative.xml
     valuation.xml
-    weight_report.xml
\ No newline at end of file
+    weight_report.xml
+    dimension.xml
\ No newline at end of file
diff --git a/modules/purchase_trade/view/dimension_ass_form.xml b/modules/purchase_trade/view/dimension_ass_form.xml
new file mode 100644
index 0000000..6e5983a
--- /dev/null
+++ b/modules/purchase_trade/view/dimension_ass_form.xml
@@ -0,0 +1,6 @@
+<form>
+    <label name="dimension"/>
+    <field name="dimension"/>
+    <label name="value"/>
+    <field name="value"/>
+</form>
\ No newline at end of file
diff --git a/modules/purchase_trade/view/dimension_ass_tree.xml b/modules/purchase_trade/view/dimension_ass_tree.xml
new file mode 100644
index 0000000..1185564
--- /dev/null
+++ b/modules/purchase_trade/view/dimension_ass_tree.xml
@@ -0,0 +1,4 @@
+<tree editable="1">
+    <field name="dimension"/>
+    <field name="value"/>
+</tree>
\ No newline at end of file
diff --git a/modules/purchase_trade/view/dimension_form.xml b/modules/purchase_trade/view/dimension_form.xml
new file mode 100644
index 0000000..67f1cca
--- /dev/null
+++ b/modules/purchase_trade/view/dimension_form.xml
@@ -0,0 +1,8 @@
+<form>
+    <label name="name"/>
+    <field name="name"/>
+    <label name="code"/>
+    <field name="code"/>
+    <label name="active"/>
+    <field name="active"/>
+</form>
\ No newline at end of file
diff --git a/modules/purchase_trade/view/dimension_tree.xml b/modules/purchase_trade/view/dimension_tree.xml
new file mode 100644
index 0000000..18c2825
--- /dev/null
+++ b/modules/purchase_trade/view/dimension_tree.xml
@@ -0,0 +1,5 @@
+<tree>
+    <field name="name"/>
+    <field name="code"/>
+    <field name="active"/>
+</tree>
\ No newline at end of file
diff --git a/modules/purchase_trade/view/dimension_value_form.xml b/modules/purchase_trade/view/dimension_value_form.xml
new file mode 100644
index 0000000..08de0df
--- /dev/null
+++ b/modules/purchase_trade/view/dimension_value_form.xml
@@ -0,0 +1,14 @@
+<form col="4">
+    <label name="dimension"/>
+    <field name="dimension"/>
+    <label name="name"/>
+    <field name="name"/>
+    <label name="code"/>
+    <field name="code"/>
+    <label name="parent"/>
+    <field name="parent"/>
+    <label name="active"/>
+    <field name="active"/>
+    <newline/>
+    <field name="children" colspan="4"/>
+</form>
\ No newline at end of file
diff --git a/modules/purchase_trade/view/dimension_value_tree.xml b/modules/purchase_trade/view/dimension_value_tree.xml
new file mode 100644
index 0000000..1dbc391
--- /dev/null
+++ b/modules/purchase_trade/view/dimension_value_tree.xml
@@ -0,0 +1,7 @@
+<tree editable="1">
+    <field name="dimension"/>
+    <field name="name"/>
+    <field name="code"/>
+    <field name="parent"/>
+    <field name="active"/>
+</tree>
\ No newline at end of file
diff --git a/modules/purchase_trade/view/purchase_form.xml b/modules/purchase_trade/view/purchase_form.xml
index e7d8110..c72de46 100755
--- a/modules/purchase_trade/view/purchase_form.xml
+++ b/modules/purchase_trade/view/purchase_form.xml
@@ -59,5 +59,8 @@ this repository contains the full copyright notices and license terms. -->
             <newline/> 
             <field name="required_documents" colspan="4"/>
         </page>
+        <page string="Dimensions" id="di">
+            <field name="analytic_dimensions" colspan="4"/>
+        </page>
     </xpath>
 </data>
\ No newline at end of file