diff --git a/superset-frontend/src/reports/actions/reports.js b/superset-frontend/src/reports/actions/reports.js
index c7eb0c934561f..55cea9dbaa7c9 100644
--- a/superset-frontend/src/reports/actions/reports.js
+++ b/superset-frontend/src/reports/actions/reports.js
@@ -111,7 +111,7 @@ export const addReport = report => dispatch => {
       const parsedError = await getClientErrorObject(e);
       const errorMessage = parsedError.message;
       const errorArr = Object.keys(errorMessage);
-      const error = errorMessage[errorArr[0]][0];
+      const error = errorMessage[errorArr[0]];
       dispatch(
         addDangerToast(
           t('An error occurred while editing this report: %s', error),
diff --git a/superset/reports/commands/base.py b/superset/reports/commands/base.py
index bb4064d22cde7..3582767ef65f2 100644
--- a/superset/reports/commands/base.py
+++ b/superset/reports/commands/base.py
@@ -22,9 +22,12 @@
 from superset.charts.dao import ChartDAO
 from superset.commands.base import BaseCommand
 from superset.dashboards.dao import DashboardDAO
+from superset.models.reports import ReportCreationMethodType
 from superset.reports.commands.exceptions import (
     ChartNotFoundValidationError,
+    ChartNotSavedValidationError,
     DashboardNotFoundValidationError,
+    DashboardNotSavedValidationError,
     ReportScheduleChartOrDashboardValidationError,
 )
 
@@ -47,6 +50,17 @@ def validate_chart_dashboard(
         """ Validate chart or dashboard relation """
         chart_id = self._properties.get("chart")
         dashboard_id = self._properties.get("dashboard")
+        creation_method = self._properties.get("creation_method")
+
+        if creation_method == ReportCreationMethodType.CHARTS and not chart_id:
+            # User has not saved chart yet in Explore view
+            exceptions.append(ChartNotSavedValidationError())
+            return
+
+        if creation_method == ReportCreationMethodType.DASHBOARDS and not dashboard_id:
+            exceptions.append(DashboardNotSavedValidationError())
+            return
+
         if chart_id and dashboard_id:
             exceptions.append(ReportScheduleChartOrDashboardValidationError())
         if chart_id:
diff --git a/superset/reports/commands/exceptions.py b/superset/reports/commands/exceptions.py
index dfe2402da0449..b7d7b433ba952 100644
--- a/superset/reports/commands/exceptions.py
+++ b/superset/reports/commands/exceptions.py
@@ -80,6 +80,32 @@ def __init__(self) -> None:
         super().__init__(_("Choose a chart or dashboard not both"), field_name="chart")
 
 
+class ChartNotSavedValidationError(ValidationError):
+    """
+    Marshmallow validation error for charts that haven't been saved yet
+    """
+
+    def __init__(self) -> None:
+        super().__init__(
+            _("Please save your chart first, then try creating a new email report."),
+            field_name="chart",
+        )
+
+
+class DashboardNotSavedValidationError(ValidationError):
+    """
+    Marshmallow validation error for dashboards that haven't been saved yet
+    """
+
+    def __init__(self) -> None:
+        super().__init__(
+            _(
+                "Please save your dashboard first, then try creating a new email report."
+            ),
+            field_name="dashboard",
+        )
+
+
 class ReportScheduleInvalidError(CommandInvalidError):
     message = _("Report Schedule parameters are invalid.")
 
diff --git a/tests/integration_tests/reports/api_tests.py b/tests/integration_tests/reports/api_tests.py
index 3c306490d1389..55fce65162ea9 100644
--- a/tests/integration_tests/reports/api_tests.py
+++ b/tests/integration_tests/reports/api_tests.py
@@ -734,6 +734,62 @@ def test_create_report_schedule_schema(self):
         assert data["result"]["timezone"] == "America/Los_Angeles"
         assert rv.status_code == 201
 
+    @pytest.mark.usefixtures(
+        "load_birth_names_dashboard_with_slices", "create_report_schedules"
+    )
+    def test_unsaved_report_schedule_schema(self):
+        """
+        ReportSchedule Api: Test create report schedule with unsaved chart
+        """
+        self.login(username="admin")
+        chart = db.session.query(Slice).first()
+        dashboard = db.session.query(Dashboard).first()
+        example_db = get_example_database()
+
+        report_schedule_data = {
+            "type": ReportScheduleType.REPORT,
+            "name": "name3",
+            "description": "description",
+            "creation_method": ReportCreationMethodType.CHARTS,
+            "crontab": "0 9 * * *",
+            "chart": 0,
+        }
+        uri = "api/v1/report/"
+        rv = self.client.post(uri, json=report_schedule_data)
+        data = json.loads(rv.data.decode("utf-8"))
+        assert rv.status_code == 422
+        assert (
+            data["message"]["chart"]
+            == "Please save your chart first, then try creating a new email report."
+        )
+
+    @pytest.mark.usefixtures(
+        "load_birth_names_dashboard_with_slices", "create_report_schedules"
+    )
+    def test_no_dashboard_report_schedule_schema(self):
+        """
+        ReportSchedule Api: Test create report schedule with not dashboard id
+        """
+        self.login(username="admin")
+        chart = db.session.query(Slice).first()
+        dashboard = db.session.query(Dashboard).first()
+        example_db = get_example_database()
+        report_schedule_data = {
+            "type": ReportScheduleType.REPORT,
+            "name": "name3",
+            "description": "description",
+            "creation_method": ReportCreationMethodType.DASHBOARDS,
+            "crontab": "0 9 * * *",
+        }
+        uri = "api/v1/report/"
+        rv = self.client.post(uri, json=report_schedule_data)
+        data = json.loads(rv.data.decode("utf-8"))
+        assert rv.status_code == 422
+        assert (
+            data["message"]["dashboard"]
+            == "Please save your dashboard first, then try creating a new email report."
+        )
+
     @pytest.mark.usefixtures("load_birth_names_dashboard_with_slices")
     def test_create_report_schedule_chart_dash_validation(self):
         """