diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index 9c74f27..0cf630c 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -601,4 +601,5 @@
 erpnext.patches.v11_1.rename_depends_on_lwp
 execute:frappe.delete_doc("Report", "Inactive Items")
 erpnext.patches.v11_1.delete_scheduling_tool
+execute:frappe.reload_doc('support', 'doctype', 'service_level_priority')
 erpnext.patches.v12_0.move_parameters_to_priority
\ No newline at end of file
diff --git a/erpnext/patches/v12_0/move_parameters_to_priority.py b/erpnext/patches/v12_0/move_parameters_to_priority.py
index bdecb31..9d031c3 100644
--- a/erpnext/patches/v12_0/move_parameters_to_priority.py
+++ b/erpnext/patches/v12_0/move_parameters_to_priority.py
@@ -10,12 +10,13 @@
 	service_levels = frappe.get_list("Service Level",
 		fields=["name", "priority", "response_time", "response_time_period", "resolution_time", "resolution_time_period"])
 	for service_level in service_levels:
-		for value in priorities:
+		for idx, value in enumerate(priorities):
 			doc = frappe.get_doc({
 				"doctype": "Service Level Priority",
 				"parent": service_level.name,
 				"parenttype": "Service Level",
 				"priority": value,
+				"idx": idx,
 				"response_time": service_level.response_time,
 				"response_time_period": service_level.response_time_period,
 				"resolution_time": service_level.resolution_time,
@@ -25,12 +26,13 @@
 	service_level_agreements = frappe.get_list("Service Level Agreement",
 		fields=["name", "priority", "response_time", "response_time_period", "resolution_time", "resolution_time_period"])
 	for service_level_agreement in service_level_agreements:
-		for value in priorities:
+		for idx, value in enumerate(priorities):
 			doc = frappe.get_doc({
 				"doctype": "Service Level Priority",
 				"parent": service_level_agreement.name,
 				"parenttype": "Service Level Agreement",
 				"priority": value,
+				"idx": idx,
 				"response_time": service_level_agreement.response_time,
 				"response_time_period": service_level_agreement.response_time_period,
 				"resolution_time": service_level_agreement.resolution_time,