diff --git a/account_invoice_margin_sale/README.rst b/account_invoice_margin_sale/README.rst
index ca957d31..32e2cbdf 100644
--- a/account_invoice_margin_sale/README.rst
+++ b/account_invoice_margin_sale/README.rst
@@ -75,6 +75,7 @@ Contributors
   * Sergio Teruel
   * Carlos Dauden
   * Víctor Martínez
+  * Carolina Fernandez
 
 * `Open Source Integrators <https://www.opensourceintegrators.com>`__:
 
diff --git a/account_invoice_margin_sale/__init__.py b/account_invoice_margin_sale/__init__.py
index 69f7babd..21e9576d 100644
--- a/account_invoice_margin_sale/__init__.py
+++ b/account_invoice_margin_sale/__init__.py
@@ -1,3 +1,3 @@
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
-
+from .hooks import post_init_hook
 from . import models
diff --git a/account_invoice_margin_sale/__manifest__.py b/account_invoice_margin_sale/__manifest__.py
index e701b5d1..aac043e8 100644
--- a/account_invoice_margin_sale/__manifest__.py
+++ b/account_invoice_margin_sale/__manifest__.py
@@ -15,5 +15,6 @@
     "application": False,
     "installable": True,
     "auto_install": True,
+    "post_init_hook": "post_init_hook",
     "depends": ["sale_margin", "account_invoice_margin"],
 }
diff --git a/account_invoice_margin_sale/hooks.py b/account_invoice_margin_sale/hooks.py
new file mode 100644
index 00000000..5af171c3
--- /dev/null
+++ b/account_invoice_margin_sale/hooks.py
@@ -0,0 +1,37 @@
+def pre_init_hook(cr, registry):
+    # update purchase_price for invoices from sale_order
+    cr.execute(
+        """
+        UPDATE account_move_line AS aml
+        SET purchase_price = (
+            SELECT COALESCE(SUM(sol.purchase_price), 0.0)
+            FROM sale_order_line AS sol
+            INNER JOIN sale_order_line_invoice_rel AS rel
+            ON rel.order_line_id = sol.id
+            WHERE rel.invoice_line_id = aml.id
+        );
+        """
+    )
+    # recalculate margin for invoices from sale_order
+    cr.execute(
+        """
+        WITH aml AS (
+            SELECT
+               account_move_line.move_id,
+               SUM(account_move_line.margin) AS sum_margin,
+               SUM(account_move_line.margin_signed) AS sum_margin_signed
+            FROM account_move_line
+            INNER JOIN account_move ON account_move.id = account_move_line.move_id
+            INNER JOIN sale_order_line_invoice_rel AS rel
+            ON rel.invoice_line_id = aml.id
+            GROUP BY account_move_line.move_id
+        )
+        UPDATE account_move
+        SET margin = aml.sum_margin,
+            margin_signed = aml.sum_margin_signed,
+            margin_percent = aml.sum_margin_signed / amount_untaxed * 100
+        FROM aml
+        WHERE account_move.id = aml.move_id
+        AND account_move.amount_untaxed > 0.0;
+        """
+    )
diff --git a/account_invoice_margin_sale/readme/CONTRIBUTORS.rst b/account_invoice_margin_sale/readme/CONTRIBUTORS.rst
index 79af01f4..ac76f9ea 100644
--- a/account_invoice_margin_sale/readme/CONTRIBUTORS.rst
+++ b/account_invoice_margin_sale/readme/CONTRIBUTORS.rst
@@ -3,6 +3,7 @@
   * Sergio Teruel
   * Carlos Dauden
   * Víctor Martínez
+  * Carolina Fernandez
 
 * `Open Source Integrators <https://www.opensourceintegrators.com>`__:
 
diff --git a/account_invoice_margin_sale/static/description/index.html b/account_invoice_margin_sale/static/description/index.html
index abb6d18a..f92de031 100644
--- a/account_invoice_margin_sale/static/description/index.html
+++ b/account_invoice_margin_sale/static/description/index.html
@@ -420,6 +420,7 @@ <h2><a class="toc-backref" href="#toc-entry-6">Contributors</a></h2>
 <li>Sergio Teruel</li>
 <li>Carlos Dauden</li>
 <li>Víctor Martínez</li>
+<li>Carolina Fernandez</li>
 </ul>
 </li>
 <li><a class="reference external" href="https://www.opensourceintegrators.com">Open Source Integrators</a>:<ul>