diff --git a/erpnext/support/doctype/issue/issue.json b/erpnext/support/doctype/issue/issue.json
index bc29821..14712f8 100644
--- a/erpnext/support/doctype/issue/issue.json
+++ b/erpnext/support/doctype/issue/issue.json
@@ -166,7 +166,7 @@
    "options": "Service Level Agreement"
   },
   {
-   "depends_on": "eval: doc.status != 'Replied';",
+   "depends_on": "eval: doc.status != 'Replied' && doc.service_level_agreement;",
    "fieldname": "response_by",
    "fieldtype": "Datetime",
    "label": "Response By",
@@ -180,7 +180,7 @@
    "read_only": 1
   },
   {
-   "depends_on": "eval: doc.status != 'Replied';",
+   "depends_on": "eval: doc.status != 'Replied' && doc.service_level_agreement;",
    "fieldname": "resolution_by",
    "fieldtype": "Datetime",
    "label": "Resolution By",
@@ -410,7 +410,7 @@
  "icon": "fa fa-ticket",
  "idx": 7,
  "links": [],
- "modified": "2021-05-26 10:49:07.574769",
+ "modified": "2021-06-10 03:22:27.098898",
  "modified_by": "Administrator",
  "module": "Support",
  "name": "Issue",
diff --git a/erpnext/support/doctype/issue/issue.py b/erpnext/support/doctype/issue/issue.py
index b068363..9c69deb 100644
--- a/erpnext/support/doctype/issue/issue.py
+++ b/erpnext/support/doctype/issue/issue.py
@@ -29,6 +29,9 @@
 		self.update_status()
 		self.set_lead_contact(self.raised_by)
 
+		if not self.service_level_agreement:
+			self.reset_sla_fields()
+
 	def on_update(self):
 		# Add a communication in the issue timeline
 		if self.flags.create_communication and self.via_customer_portal:
@@ -54,6 +57,13 @@
 				self.company = frappe.db.get_value("Lead", self.lead, "company") or \
 					frappe.db.get_default("Company")
 
+	def reset_sla_fields(self):
+		self.agreement_status = ""
+		self.response_by = ""
+		self.resolution_by = ""
+		self.response_by_variance = 0
+		self.resolution_by_variance = 0
+
 	def update_status(self):
 		status = frappe.db.get_value("Issue", self.name, "status")
 		if self.status != "Open" and status == "Open" and not self.first_responded_on:
@@ -511,4 +521,4 @@
 		Converts datetime.time(10, 36, 55, 961454) to datetime.timedelta(seconds=38215)
 	"""
 	import datetime
-	return datetime.timedelta(hours=time.hour, minutes=time.minute, seconds=time.second)
\ No newline at end of file
+	return datetime.timedelta(hours=time.hour, minutes=time.minute, seconds=time.second)