move Purchase Order patch to v9
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index e75c490..f149804 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -448,3 +448,4 @@
 erpnext.patches.v8_9.delete_gst_doctypes_for_outside_india_accounts
 erpnext.patches.v8_9.set_default_fields_in_variant_settings
 erpnext.patches.v8_9.update_billing_gstin_for_indian_account
+erpnext.patches.v9_0.set_schedule_date_for_purchase_order
\ No newline at end of file
diff --git a/erpnext/patches/v8_11/__init__.py b/erpnext/patches/v8_11/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/erpnext/patches/v8_11/__init__.py
+++ /dev/null
diff --git a/erpnext/patches/v8_11/set_schedule_date_for_purchase_order.py b/erpnext/patches/v9_0/set_schedule_date_for_purchase_order.py
similarity index 100%
rename from erpnext/patches/v8_11/set_schedule_date_for_purchase_order.py
rename to erpnext/patches/v9_0/set_schedule_date_for_purchase_order.py
diff --git a/erpnext/stock/doctype/material_request/material_request.py b/erpnext/stock/doctype/material_request/material_request.py
index 4792fca..f898512 100644
--- a/erpnext/stock/doctype/material_request/material_request.py
+++ b/erpnext/stock/doctype/material_request/material_request.py
@@ -288,7 +288,7 @@
 
 	def postprocess(source, target_doc):
 		target_doc.supplier = source_name
-
+		target_doc.schedule_date = add_days(nowdate(), 1)
 		target_doc.set("items", [d for d in target_doc.get("items")
 			if d.get("item_code") in supplier_items and d.get("qty") > 0])