diff --git a/erpnext/assets/doctype/asset_repair/asset_repair.py b/erpnext/assets/doctype/asset_repair/asset_repair.py
index 5bf6011cf805..94b4c641333b 100644
--- a/erpnext/assets/doctype/asset_repair/asset_repair.py
+++ b/erpnext/assets/doctype/asset_repair/asset_repair.py
@@ -41,40 +41,46 @@ def before_submit(self):
 
 		if self.get("stock_consumption") or self.get("capitalize_repair_cost"):
 			self.increase_asset_value()
-		if self.get("stock_consumption"):
-			self.check_for_stock_items_and_warehouse()
-			self.decrease_stock_quantity()
-		if self.get("capitalize_repair_cost"):
-			self.make_gl_entries()
-			if (
-				frappe.db.get_value("Asset", self.asset, "calculate_depreciation")
-				and self.increase_in_asset_life
-			):
-				self.modify_depreciation_schedule()
-
-		self.asset_doc.flags.ignore_validate_update_after_submit = True
-		self.asset_doc.prepare_depreciation_data()
-		self.asset_doc.save()
+
+			if self.get("stock_consumption"):
+				self.check_for_stock_items_and_warehouse()
+				self.decrease_stock_quantity()
+
+			if self.get("capitalize_repair_cost"):
+				self.make_gl_entries()
+
+				if (
+					frappe.db.get_value("Asset", self.asset, "calculate_depreciation")
+					and self.increase_in_asset_life
+				):
+					self.modify_depreciation_schedule()
+
+			self.asset_doc.flags.ignore_validate_update_after_submit = True
+			self.asset_doc.prepare_depreciation_data()
+			self.asset_doc.save()
 
 	def before_cancel(self):
 		self.asset_doc = frappe.get_doc("Asset", self.asset)
 
 		if self.get("stock_consumption") or self.get("capitalize_repair_cost"):
 			self.decrease_asset_value()
-		if self.get("stock_consumption"):
-			self.increase_stock_quantity()
-		if self.get("capitalize_repair_cost"):
-			self.ignore_linked_doctypes = ("GL Entry", "Stock Ledger Entry")
-			self.make_gl_entries(cancel=True)
-			if (
-				frappe.db.get_value("Asset", self.asset, "calculate_depreciation")
-				and self.increase_in_asset_life
-			):
-				self.revert_depreciation_schedule_on_cancellation()
-
-		self.asset_doc.flags.ignore_validate_update_after_submit = True
-		self.asset_doc.prepare_depreciation_data()
-		self.asset_doc.save()
+
+			if self.get("stock_consumption"):
+				self.increase_stock_quantity()
+
+			if self.get("capitalize_repair_cost"):
+				self.ignore_linked_doctypes = ("GL Entry", "Stock Ledger Entry")
+				self.make_gl_entries(cancel=True)
+
+				if (
+					frappe.db.get_value("Asset", self.asset, "calculate_depreciation")
+					and self.increase_in_asset_life
+				):
+					self.revert_depreciation_schedule_on_cancellation()
+
+			self.asset_doc.flags.ignore_validate_update_after_submit = True
+			self.asset_doc.prepare_depreciation_data()
+			self.asset_doc.save()
 
 	def check_repair_status(self):
 		if self.repair_status == "Pending":
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index d90a5e194887..5d95f824dce3 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -361,5 +361,6 @@ erpnext.patches.v13_0.update_expense_claim_status_for_paid_advances
 erpnext.patches.v13_0.change_default_item_manufacturer_fieldtype
 erpnext.patches.v13_0.set_return_against_in_pos_invoice_references
 erpnext.patches.v13_0.copy_custom_field_filters_to_website_item
+erpnext.patches.v13_0.set_available_for_use_date_if_missing
 erpnext.patches.v13_0.education_deprecation_warning
 erpnext.patches.v13_0.create_accounting_dimensions_in_orders
diff --git a/erpnext/patches/v13_0/set_available_for_use_date_if_missing.py b/erpnext/patches/v13_0/set_available_for_use_date_if_missing.py
new file mode 100644
index 000000000000..3cfbd6e7fd05
--- /dev/null
+++ b/erpnext/patches/v13_0/set_available_for_use_date_if_missing.py
@@ -0,0 +1,22 @@
+import frappe
+
+
+def execute():
+	"""
+	Sets available-for-use date for Assets created in older versions of ERPNext,
+	before the field was introduced.
+	"""
+
+	assets = get_assets_without_available_for_use_date()
+
+	for asset in assets:
+		frappe.db.set_value("Asset", asset.name, "available_for_use_date", asset.purchase_date)
+
+def get_assets_without_available_for_use_date():
+	return frappe.get_all(
+		"Asset",
+		filters = {
+			"available_for_use_date": ["in", ["", None]]
+		},
+		fields = ["name", "purchase_date"]
+	)