diff --git a/__manifest__.py b/__manifest__.py
index 6489dce..0943e39 100644
--- a/__manifest__.py
+++ b/__manifest__.py
@@ -8,7 +8,7 @@
         1. Find discrepancies between Vendor Bills and linked Purchase Orders within a date range.
         2. Sync selected Vendor Bills to update the Purchase Orders.
     """,
-    'author': 'Antigravity',
+    'author': 'Suherdy Yacob',
     'depends': ['purchase', 'account'],
     'data': [
         'security/ir.model.access.csv',
diff --git a/wizard/__pycache__/purchase_bill_sync_wizard.cpython-312.pyc b/wizard/__pycache__/purchase_bill_sync_wizard.cpython-312.pyc
index 58ff1a6..fa9b811 100644
Binary files a/wizard/__pycache__/purchase_bill_sync_wizard.cpython-312.pyc and b/wizard/__pycache__/purchase_bill_sync_wizard.cpython-312.pyc differ
diff --git a/wizard/purchase_bill_sync_wizard.py b/wizard/purchase_bill_sync_wizard.py
index f500857..1bc3c0a 100644
--- a/wizard/purchase_bill_sync_wizard.py
+++ b/wizard/purchase_bill_sync_wizard.py
@@ -53,7 +53,6 @@ class PurchaseBillSyncWizard(models.TransientModel):
                 if line.product_uom_id and po_line.product_uom and line.product_uom_id != po_line.product_uom:
                     bill_price_in_po_currency = line.product_uom_id._compute_price(bill_price_in_po_currency, po_line.product_uom)
 
-                # Check Price
                 if float_compare(bill_price_in_po_currency, po_line.price_unit, precision_digits=2) != 0:
                     discrepancies.append(f"Product {line.product_id.name}: Price {bill_price_in_po_currency:.2f} != {po_line.price_unit:.2f}")
                     
@@ -163,6 +162,42 @@ class PurchaseBillSyncWizard(models.TransientModel):
                                                new_date = stock_move.date + timedelta(seconds=1)
                                                self._cr.execute("UPDATE stock_valuation_layer SET create_date = %s WHERE id = %s", (new_date, svl.id))
                                           
+                                          # AVCO/FIFO Logic: Update Standard Price and Distribute Value to Layers
+                                          product = stock_move.product_id
+                                          if product.categ_id.property_cost_method in ['average', 'fifo'] and product.quantity_svl > 0:
+                                              # 1. Update Standard Price
+                                              # We use disable_auto_svl to prevent Odoo from creating an extra SVL for this price change
+                                              # because we already created the specific adjustment SVL above.
+                                              new_std_price = product.standard_price + (diff / product.quantity_svl)
+                                              product.with_context(disable_auto_svl=True).sudo().write({'standard_price': new_std_price})
+                                              
+                                              # 2. Distribute Value to Remaining Layers (Crucial for correct COGS later)
+                                              remaining_svls = self.env['stock.valuation.layer'].search([
+                                                  ('product_id', '=', product.id),
+                                                  ('remaining_qty', '>', 0),
+                                                  ('company_id', '=', stock_move.company_id.id),
+                                              ])
+                                              
+                                              if remaining_svls:
+                                                  remaining_qty_total = sum(remaining_svls.mapped('remaining_qty'))
+                                                  if remaining_qty_total > 0:
+                                                      remaining_value_to_distribute = diff
+                                                      remaining_value_unit_cost = remaining_value_to_distribute / remaining_qty_total
+                                                      
+                                                      for layer in remaining_svls:
+                                                          if float_compare(layer.remaining_qty, remaining_qty_total, precision_rounding=product.uom_id.rounding) >= 0:
+                                                              taken_remaining_value = remaining_value_to_distribute
+                                                          else:
+                                                              taken_remaining_value = remaining_value_unit_cost * layer.remaining_qty
+                                                              
+                                                          # Rounding
+                                                          taken_remaining_value = stock_move.company_id.currency_id.round(taken_remaining_value)
+                                                          
+                                                          layer.sudo().write({'remaining_value': layer.remaining_value + taken_remaining_value})
+                                                          
+                                                          remaining_value_to_distribute -= taken_remaining_value
+                                                          remaining_qty_total -= layer.remaining_qty
+
                                           # Handle Accounting Entry if Automated
                                           if stock_move.product_id.categ_id.property_valuation == 'real_time':
                                               accounts = stock_move.product_id.product_tmpl_id.get_product_accounts()