diff -r 168b01453902 __init__.py
--- a/trytond/trytond/modules/stock_supply_forecast/__init__.py	Mon May 06 15:17:58 2019 +0200
+++ b/trytond/trytond/modules/stock_supply_forecast/__init__.py	Fri Oct 04 10:04:50 2019 +0000
@@ -2,10 +2,10 @@
 # this repository contains the full copyright notices and license terms.
 
 from trytond.pool import Pool
-from .purchase_request import *
+from . import stock
 
 
 def register():
     Pool.register(
-        PurchaseRequest,
-        module='stock_supply_forecast', type_='model')
+        stock.StockSupply,
+        module='stock_supply_forecast', type_='wizard')
diff -r 168b01453902 purchase_request.py
--- a/trytond/trytond/modules/stock_supply_forecast/purchase_request.py	Mon May 06 15:17:58 2019 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,25 +0,0 @@
-# This file is part of Tryton.  The COPYRIGHT file at the top level of
-# this repository contains the full copyright notices and license terms.
-from trytond.pool import Pool, PoolMeta
-
-__all__ = ['PurchaseRequest']
-
-
-class PurchaseRequest(metaclass=PoolMeta):
-    __name__ = 'purchase.request'
-
-    @classmethod
-    def generate_requests(cls, *args, **kwargs):
-        pool = Pool()
-        Forecast = pool.get('stock.forecast')
-        Date = pool.get('ir.date')
-
-        today = Date.today()
-
-        forecasts = Forecast.search([
-                ('to_date', '>=', today),
-                ('state', '=', 'done'),
-                ])
-        Forecast.create_moves(forecasts)
-        super(PurchaseRequest, cls).generate_requests(*args, **kwargs)
-        Forecast.delete_moves(forecasts)
diff -r 168b01453902 stock.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trytond/trytond/modules/stock_supply_forecast/stock.py	Fri Oct 04 10:04:50 2019 +0000
@@ -0,0 +1,22 @@
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from trytond.pool import Pool, PoolMeta
+
+class StockSupply(metaclass=PoolMeta):
+    __name__ = 'stock.supply'
+
+    def transition_create_(self):
+        pool = Pool()
+        Forecast = pool.get('stock.forecast')
+        Date = pool.get('ir.date')
+
+        today = Date.today()
+
+        forecasts = Forecast.search([
+                ('to_date', '>=', today),
+                ('state', '=', 'done'),
+                ])
+        Forecast.create_moves(forecasts)
+        res = super(StockSupply, self).transition_create_()
+        Forecast.delete_moves(forecasts)
+        return res
diff -r 168b01453902 tryton.cfg
--- a/trytond/trytond/modules/stock_supply_forecast/tryton.cfg	Mon May 06 15:17:58 2019 +0200
+++ b/trytond/trytond/modules/stock_supply_forecast/tryton.cfg	Fri Oct 04 10:04:50 2019 +0000
@@ -4,3 +4,5 @@
     ir
     stock_supply
     stock_forecast
+extras_depend:
+    stock_supply_production