diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_log_analytics/azure_log_analytics_datasource.test.ts b/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_log_analytics/azure_log_analytics_datasource.test.ts
index 0256f2a144c..cb768c49ea3 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_log_analytics/azure_log_analytics_datasource.test.ts
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_log_analytics/azure_log_analytics_datasource.test.ts
@@ -1,7 +1,7 @@
 import AzureMonitorDatasource from '../datasource';
 import FakeSchemaData from './__mocks__/schema';
 import { TemplateSrv } from 'app/features/templating/template_srv';
-import { AzureLogsVariable } from '../types';
+import { AzureLogsVariable, DatasourceValidationResult } from '../types';
 import { toUtc } from '@grafana/data';
 import { backendSrv } from 'app/core/services/backend_srv';
 
@@ -112,17 +112,15 @@ describe('AzureLogAnalyticsDatasource', () => {
       };
 
       beforeEach(() => {
-        ctx.instanceSettings.jsonData.logAnalyticsSubscriptionId = 'xxx';
-        ctx.instanceSettings.jsonData.logAnalyticsTenantId = 'xxx';
-        ctx.instanceSettings.jsonData.logAnalyticsClientId = 'xxx';
+        ctx.instanceSettings.jsonData.azureAuthType = 'msi';
         datasourceRequestMock.mockImplementation(() => Promise.reject(error));
       });
 
       it('should return error status and a detailed error message', () => {
-        return ctx.ds.testDatasource().then((results: any) => {
-          expect(results.status).toEqual('error');
-          expect(results.message).toEqual(
-            '1. Azure Log Analytics: Bad Request: InvalidApiVersionParameter. An error message. '
+        return ctx.ds.azureLogAnalyticsDatasource.testDatasource().then((result: DatasourceValidationResult) => {
+          expect(result.status).toEqual('error');
+          expect(result.message).toEqual(
+            'Azure Log Analytics requires access to Azure Monitor but had the following error: Bad Request: InvalidApiVersionParameter. An error message.'
           );
         });
       });
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_log_analytics/azure_log_analytics_datasource.ts b/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_log_analytics/azure_log_analytics_datasource.ts
index bb33ac360cb..b7a73820e25 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_log_analytics/azure_log_analytics_datasource.ts
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_log_analytics/azure_log_analytics_datasource.ts
@@ -37,7 +37,7 @@ export default class AzureLogAnalyticsDatasource extends DataSourceWithBackend<
   baseUrl: string;
   applicationId: string;
 
-  subscriptionId: string;
+  defaultSubscriptionId?: string;
 
   azureMonitorUrl: string;
   defaultOrFirstWorkspace: string;
@@ -55,12 +55,24 @@ export default class AzureLogAnalyticsDatasource extends DataSourceWithBackend<
     this.azureMonitorUrl = `/${managementRoute}/subscriptions`;
 
     this.url = instanceSettings.url || '';
-    this.subscriptionId = this.instanceSettings.jsonData.logAnalyticsSubscriptionId || '';
+    this.defaultSubscriptionId = this.instanceSettings.jsonData.logAnalyticsSubscriptionId || '';
     this.defaultOrFirstWorkspace = this.instanceSettings.jsonData.logAnalyticsDefaultWorkspace || '';
   }
 
   isConfigured(): boolean {
-    return !!this.subscriptionId && this.subscriptionId.length > 0;
+    // If validation didn't return any error then the data source is properly configured
+    return !this.validateDatasource();
+  }
+
+  async getSubscriptions(): Promise<Array<{ text: string; value: string }>> {
+    if (!this.isConfigured()) {
+      return [];
+    }
+
+    const url = `${this.azureMonitorUrl}?api-version=2019-03-01`;
+    return await this.doRequest(url).then((result: any) => {
+      return ResponseParser.parseSubscriptions(result);
+    });
   }
 
   async getWorkspaces(subscription: string): Promise<AzureLogsVariable[]> {
@@ -73,8 +85,8 @@ export default class AzureLogAnalyticsDatasource extends DataSourceWithBackend<
     );
   }
 
-  getWorkspaceList(subscription: string): Promise<any> {
-    const subscriptionId = getTemplateSrv().replace(subscription || this.subscriptionId);
+  private getWorkspaceList(subscription: string): Promise<any> {
+    const subscriptionId = getTemplateSrv().replace(subscription || this.defaultSubscriptionId);
 
     const workspaceListUrl =
       this.azureMonitorUrl +
@@ -109,7 +121,7 @@ export default class AzureLogAnalyticsDatasource extends DataSourceWithBackend<
       workspace = this.defaultOrFirstWorkspace;
     }
 
-    const subscriptionId = templateSrv.replace(target.subscription || this.subscriptionId, scopedVars);
+    const subscriptionId = templateSrv.replace(target.subscription || this.defaultSubscriptionId, scopedVars);
     const query = templateSrv.replace(item.query, scopedVars, this.interpolateVariable);
 
     return {
@@ -182,10 +194,10 @@ export default class AzureLogAnalyticsDatasource extends DataSourceWithBackend<
   }
 
   async getWorkspaceDetails(workspaceId: string) {
-    if (!this.subscriptionId) {
+    if (!this.defaultSubscriptionId) {
       return {};
     }
-    const response = await this.getWorkspaceList(this.subscriptionId);
+    const response = await this.getWorkspaceList(this.defaultSubscriptionId);
 
     const details = response.data.value.find((o: any) => {
       return o.properties.customerId === workspaceId;
@@ -216,8 +228,8 @@ export default class AzureLogAnalyticsDatasource extends DataSourceWithBackend<
   metricFindQueryInternal(query: string): Promise<MetricFindValue[]> {
     // workspaces() - Get workspaces in the default subscription
     const workspacesQuery = query.match(/^workspaces\(\)/i);
-    if (workspacesQuery) {
-      return this.getWorkspaces(this.subscriptionId);
+    if (workspacesQuery && this.defaultSubscriptionId) {
+      return this.getWorkspaces(this.defaultSubscriptionId);
     }
 
     // workspaces("abc-def-etc") - Get workspaces a specified subscription
@@ -228,6 +240,10 @@ export default class AzureLogAnalyticsDatasource extends DataSourceWithBackend<
 
     // Execute the query as KQL to the default or first workspace
     return this.getDefaultOrFirstWorkspace().then((resourceURI) => {
+      if (!resourceURI) {
+        return [];
+      }
+
       const queries = this.buildQuery(query, null, resourceURI);
       const promises = this.doQueries(queries);
 
@@ -299,16 +315,32 @@ export default class AzureLogAnalyticsDatasource extends DataSourceWithBackend<
     return quotedValues.join(',');
   }
 
-  getDefaultOrFirstWorkspace() {
+  async getDefaultOrFirstSubscription(): Promise<string | undefined> {
+    if (this.defaultSubscriptionId) {
+      return this.defaultSubscriptionId;
+    }
+    const subscriptions = await this.getSubscriptions();
+    return subscriptions[0]?.value;
+  }
+
+  async getDefaultOrFirstWorkspace(): Promise<string | undefined> {
     if (this.defaultOrFirstWorkspace) {
-      return Promise.resolve(this.defaultOrFirstWorkspace);
+      return this.defaultOrFirstWorkspace;
     }
 
-    return this.getWorkspaces(this.subscriptionId).then((workspaces) => {
-      this.defaultOrFirstWorkspace = workspaces[0].value;
+    const subscriptionId = await this.getDefaultOrFirstSubscription();
+    if (!subscriptionId) {
+      return undefined;
+    }
 
-      return this.defaultOrFirstWorkspace;
-    });
+    const workspaces = await this.getWorkspaces(subscriptionId);
+    const workspace = workspaces[0]?.value;
+
+    if (workspace) {
+      this.defaultOrFirstWorkspace = workspace;
+    }
+
+    return workspace;
   }
 
   annotationQuery(options: any) {
@@ -371,21 +403,36 @@ export default class AzureLogAnalyticsDatasource extends DataSourceWithBackend<
   }
 
   // TODO: update to be completely resource-centric
-  testDatasource(): Promise<DatasourceValidationResult> {
+  async testDatasource(): Promise<DatasourceValidationResult> {
     const validationError = this.validateDatasource();
     if (validationError) {
-      return Promise.resolve(validationError);
+      return validationError;
     }
 
-    return this.getDefaultOrFirstWorkspace()
-      .then((resourceOrWorkspace) => {
-        const url = isGUIDish(resourceOrWorkspace)
-          ? `${this.baseUrl}/v1/workspaces/${resourceOrWorkspace}/metadata`
-          : `${this.baseUrl}/v1${resourceOrWorkspace}/metadata`;
+    let resourceOrWorkspace: string;
+    try {
+      const result = await this.getDefaultOrFirstWorkspace();
+      if (!result) {
+        return {
+          status: 'error',
+          message: 'Workspace not found.',
+        };
+      }
+      resourceOrWorkspace = result;
+    } catch (e) {
+      let message = 'Azure Log Analytics requires access to Azure Monitor but had the following error: ';
+      return {
+        status: 'error',
+        message: this.getErrorMessage(message, e),
+      };
+    }
 
-        return this.doRequest(url);
-      })
-      .then<DatasourceValidationResult>((response: any) => {
+    try {
+      const url = isGUIDish(resourceOrWorkspace)
+        ? `${this.baseUrl}/v1/workspaces/${resourceOrWorkspace}/metadata`
+        : `${this.baseUrl}/v1${resourceOrWorkspace}/metadata`;
+
+      return await this.doRequest(url).then<DatasourceValidationResult>((response: any) => {
         if (response.status === 200) {
           return {
             status: 'success',
@@ -398,20 +445,14 @@ export default class AzureLogAnalyticsDatasource extends DataSourceWithBackend<
           status: 'error',
           message: 'Returned http status code ' + response.status,
         };
-      })
-      .catch((error: any) => {
-        let message = 'Azure Log Analytics: ';
-        if (error.config && error.config.url && error.config.url.indexOf('workspacesloganalytics') > -1) {
-          message = 'Azure Log Analytics requires access to Azure Monitor but had the following error: ';
-        }
-
-        message = this.getErrorMessage(message, error);
-
-        return {
-          status: 'error',
-          message: message,
-        };
       });
+    } catch (e) {
+      let message = 'Azure Log Analytics: ';
+      return {
+        status: 'error',
+        message: this.getErrorMessage(message, e),
+      };
+    }
   }
 
   private getErrorMessage(message: string, error: any) {
@@ -447,13 +488,6 @@ export default class AzureLogAnalyticsDatasource extends DataSourceWithBackend<
       }
     }
 
-    if (!this.isValidConfigField(this.subscriptionId)) {
-      return {
-        status: 'error',
-        message: 'The Subscription Id field is required.',
-      };
-    }
-
     return undefined;
   }
 
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_log_analytics/response_parser.ts b/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_log_analytics/response_parser.ts
index 233fca46591..190dd4d9114 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_log_analytics/response_parser.ts
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_log_analytics/response_parser.ts
@@ -1,4 +1,4 @@
-import { concat, find, flattenDeep, forEach, map } from 'lodash';
+import { concat, find, flattenDeep, forEach, get, map } from 'lodash';
 import { AnnotationEvent, dateTime, TimeSeries } from '@grafana/data';
 import { AzureLogsTableData, AzureLogsVariable } from '../types';
 import { AzureLogAnalyticsMetadata } from '../types/logAnalyticsMetadata';
@@ -147,6 +147,27 @@ export default class ResponseParser {
   static dateTimeToEpoch(dateTimeValue: any) {
     return dateTime(dateTimeValue).valueOf();
   }
+
+  static parseSubscriptions(result: any): Array<{ text: string; value: string }> {
+    const list: Array<{ text: string; value: string }> = [];
+
+    if (!result) {
+      return list;
+    }
+
+    const valueFieldName = 'subscriptionId';
+    const textFieldName = 'displayName';
+    for (let i = 0; i < result.data.value.length; i++) {
+      if (!find(list, ['value', get(result.data.value[i], valueFieldName)])) {
+        list.push({
+          text: `${get(result.data.value[i], textFieldName)}`,
+          value: get(result.data.value[i], valueFieldName),
+        });
+      }
+    }
+
+    return list;
+  }
 }
 
 // matches (name):(type) = (defaultValue)
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_monitor/azure_monitor_datasource.test.ts b/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_monitor/azure_monitor_datasource.test.ts
index 23dc1a772e1..372f94bb8a9 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_monitor/azure_monitor_datasource.test.ts
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_monitor/azure_monitor_datasource.test.ts
@@ -3,7 +3,7 @@ import AzureMonitorDatasource from '../datasource';
 import { TemplateSrv } from 'app/features/templating/template_srv';
 import { DataSourceInstanceSettings } from '@grafana/data';
 import { backendSrv } from 'app/core/services/backend_srv'; // will use the version in __mocks__
-import { AzureDataSourceJsonData } from '../types';
+import { AzureDataSourceJsonData, DatasourceValidationResult } from '../types';
 
 const templateSrv = new TemplateSrv();
 
@@ -47,17 +47,14 @@ describe('AzureMonitorDatasource', () => {
       };
 
       beforeEach(() => {
-        ctx.instanceSettings.jsonData.tenantId = 'xxx';
-        ctx.instanceSettings.jsonData.clientId = 'xxx';
+        ctx.instanceSettings.jsonData.azureAuthType = 'msi';
         datasourceRequestMock.mockImplementation(() => Promise.reject(error));
       });
 
       it('should return error status and a detailed error message', () => {
-        return ctx.ds.testDatasource().then((results: any) => {
-          expect(results.status).toEqual('error');
-          expect(results.message).toEqual(
-            '1. Azure Monitor: Bad Request: InvalidApiVersionParameter. An error message. '
-          );
+        return ctx.ds.azureMonitorDatasource.testDatasource().then((result: DatasourceValidationResult) => {
+          expect(result.status).toEqual('error');
+          expect(result.message).toEqual('Azure Monitor: Bad Request: InvalidApiVersionParameter. An error message.');
         });
       });
     });
@@ -78,8 +75,8 @@ describe('AzureMonitorDatasource', () => {
       });
 
       it('should return success status', () => {
-        return ctx.ds.testDatasource().then((results: any) => {
-          expect(results.status).toEqual('success');
+        return ctx.ds.azureMonitorDatasource.testDatasource().then((result: DatasourceValidationResult) => {
+          expect(result.status).toEqual('success');
         });
       });
     });
@@ -99,6 +96,7 @@ describe('AzureMonitorDatasource', () => {
       };
 
       beforeEach(() => {
+        ctx.instanceSettings.jsonData.azureAuthType = 'msi';
         datasourceRequestMock.mockImplementation(() => Promise.resolve(response));
       });
 
@@ -515,10 +513,11 @@ describe('AzureMonitorDatasource', () => {
     };
 
     beforeEach(() => {
+      ctx.instanceSettings.jsonData.azureAuthType = 'msi';
       datasourceRequestMock.mockImplementation(() => Promise.resolve(response));
     });
 
-    it('should return list of Resource Groups', () => {
+    it('should return list of subscriptions', () => {
       return ctx.ds.getSubscriptions().then((results: Array<{ text: string; value: string }>) => {
         expect(results.length).toEqual(1);
         expect(results[0].text).toEqual('Primary Subscription');
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_monitor/azure_monitor_datasource.ts b/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_monitor/azure_monitor_datasource.ts
index 3a201a468c8..5f105aa4fc0 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_monitor/azure_monitor_datasource.ts
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/azure_monitor/azure_monitor_datasource.ts
@@ -44,7 +44,7 @@ const aggregationTypeMap: Record<string, number> = {
 export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureMonitorQuery, AzureDataSourceJsonData> {
   apiVersion = '2018-01-01';
   apiPreviewVersion = '2017-12-01-preview';
-  subscriptionId: string;
+  defaultSubscriptionId?: string;
   baseUrl: string;
   resourceGroup: string;
   resourceName: string;
@@ -56,7 +56,7 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
     super(instanceSettings);
 
     this.timeSrv = getTimeSrv();
-    this.subscriptionId = instanceSettings.jsonData.subscriptionId!;
+    this.defaultSubscriptionId = instanceSettings.jsonData.subscriptionId;
 
     const cloud = getAzureCloud(instanceSettings);
     const route = getManagementApiRoute(cloud);
@@ -67,7 +67,8 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
   }
 
   isConfigured(): boolean {
-    return !!this.subscriptionId && this.subscriptionId.length > 0;
+    // If validation didn't return any error then the data source is properly configured
+    return !this.validateDatasource();
   }
 
   filterQuery(item: AzureMonitorQuery): boolean {
@@ -105,9 +106,13 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
   ): Promise<DataQueryResponse> {
     if (res.data) {
       for (const df of res.data) {
-        const metricQuery = metricQueries[df.refId]?.azureMonitor;
-        if (metricQuery) {
-          const url = this.buildAzurePortalUrl(metricQuery, this.subscriptionId, this.timeSrv.timeRange());
+        const metricQuery = metricQueries[df.refId];
+        if (metricQuery && metricQuery.azureMonitor) {
+          const url = this.buildAzurePortalUrl(
+            metricQuery.azureMonitor,
+            metricQuery.subscription,
+            this.timeSrv.timeRange()
+          );
 
           for (const field of df.fields) {
             field.config.links = [
@@ -174,7 +179,7 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
 
     const templateSrv = getTemplateSrv();
 
-    const subscriptionId = templateSrv.replace(target.subscription || this.subscriptionId, scopedVars);
+    const subscriptionId = templateSrv.replace(target.subscription || this.defaultSubscriptionId, scopedVars);
     const resourceGroup = templateSrv.replace(item.resourceGroup, scopedVars);
     const resourceName = templateSrv.replace(item.resourceName, scopedVars);
     const metricNamespace = templateSrv.replace(item.metricNamespace, scopedVars);
@@ -229,8 +234,8 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
     }
 
     const resourceGroupsQuery = query.match(/^ResourceGroups\(\)/i);
-    if (resourceGroupsQuery) {
-      return this.getResourceGroups(this.subscriptionId);
+    if (resourceGroupsQuery && this.defaultSubscriptionId) {
+      return this.getResourceGroups(this.defaultSubscriptionId);
     }
 
     const resourceGroupsQueryWithSub = query.match(/^ResourceGroups\(([^\)]+?)(,\s?([^,]+?))?\)/i);
@@ -239,9 +244,9 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
     }
 
     const metricDefinitionsQuery = query.match(/^Namespaces\(([^\)]+?)(,\s?([^,]+?))?\)/i);
-    if (metricDefinitionsQuery) {
+    if (metricDefinitionsQuery && this.defaultSubscriptionId) {
       if (!metricDefinitionsQuery[3]) {
-        return this.getMetricDefinitions(this.subscriptionId, this.toVariable(metricDefinitionsQuery[1]));
+        return this.getMetricDefinitions(this.defaultSubscriptionId, this.toVariable(metricDefinitionsQuery[1]));
       }
     }
 
@@ -254,10 +259,10 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
     }
 
     const resourceNamesQuery = query.match(/^ResourceNames\(([^,]+?),\s?([^,]+?)\)/i);
-    if (resourceNamesQuery) {
+    if (resourceNamesQuery && this.defaultSubscriptionId) {
       const resourceGroup = this.toVariable(resourceNamesQuery[1]);
       const metricDefinition = this.toVariable(resourceNamesQuery[2]);
-      return this.getResourceNames(this.subscriptionId, resourceGroup, metricDefinition);
+      return this.getResourceNames(this.defaultSubscriptionId, resourceGroup, metricDefinition);
     }
 
     const resourceNamesQueryWithSub = query.match(/^ResourceNames\(([^,]+?),\s?([^,]+?),\s?(.+?)\)/i);
@@ -269,11 +274,11 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
     }
 
     const metricNamespaceQuery = query.match(/^MetricNamespace\(([^,]+?),\s?([^,]+?),\s?([^,]+?)\)/i);
-    if (metricNamespaceQuery) {
+    if (metricNamespaceQuery && this.defaultSubscriptionId) {
       const resourceGroup = this.toVariable(metricNamespaceQuery[1]);
       const metricDefinition = this.toVariable(metricNamespaceQuery[2]);
       const resourceName = this.toVariable(metricNamespaceQuery[3]);
-      return this.getMetricNamespaces(this.subscriptionId, resourceGroup, metricDefinition, resourceName);
+      return this.getMetricNamespaces(this.defaultSubscriptionId, resourceGroup, metricDefinition, resourceName);
     }
 
     const metricNamespaceQueryWithSub = query.match(
@@ -288,13 +293,19 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
     }
 
     const metricNamesQuery = query.match(/^MetricNames\(([^,]+?),\s?([^,]+?),\s?([^,]+?),\s?([^,]+?)\)/i);
-    if (metricNamesQuery) {
+    if (metricNamesQuery && this.defaultSubscriptionId) {
       if (metricNamesQuery[3].indexOf(',') === -1) {
         const resourceGroup = this.toVariable(metricNamesQuery[1]);
         const metricDefinition = this.toVariable(metricNamesQuery[2]);
         const resourceName = this.toVariable(metricNamesQuery[3]);
         const metricNamespace = this.toVariable(metricNamesQuery[4]);
-        return this.getMetricNames(this.subscriptionId, resourceGroup, metricDefinition, resourceName, metricNamespace);
+        return this.getMetricNames(
+          this.defaultSubscriptionId,
+          resourceGroup,
+          metricDefinition,
+          resourceName,
+          metricNamespace
+        );
       }
     }
 
@@ -318,9 +329,13 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
     return getTemplateSrv().replace((metric || '').trim());
   }
 
-  getSubscriptions() {
+  async getSubscriptions(): Promise<Array<{ text: string; value: string }>> {
+    if (!this.isConfigured()) {
+      return [];
+    }
+
     const url = `${this.baseUrl}?api-version=2019-03-01`;
-    return this.doRequest(url).then((result: any) => {
+    return await this.doRequest(url).then((result: any) => {
       return ResponseParser.parseSubscriptions(result);
     });
   }
@@ -459,15 +474,16 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
     });
   }
 
-  testDatasource(): Promise<DatasourceValidationResult> {
+  async testDatasource(): Promise<DatasourceValidationResult> {
     const validationError = this.validateDatasource();
     if (validationError) {
       return Promise.resolve(validationError);
     }
 
-    const url = `${this.baseUrl}?api-version=2019-03-01`;
-    return this.doRequest(url)
-      .then<DatasourceValidationResult>((response: any) => {
+    try {
+      const url = `${this.baseUrl}?api-version=2019-03-01`;
+
+      return await this.doRequest(url).then<DatasourceValidationResult>((response: any) => {
         if (response.status === 200) {
           return {
             status: 'success',
@@ -480,25 +496,25 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
           status: 'error',
           message: 'Returned http status code ' + response.status,
         };
-      })
-      .catch((error: any) => {
-        let message = 'Azure Monitor: ';
-        message += error.statusText ? error.statusText + ': ' : '';
-
-        if (error.data && error.data.error && error.data.error.code) {
-          message += error.data.error.code + '. ' + error.data.error.message;
-        } else if (error.data && error.data.error) {
-          message += error.data.error;
-        } else if (error.data) {
-          message += error.data;
-        } else {
-          message += 'Cannot connect to Azure Monitor REST API.';
-        }
-        return {
-          status: 'error',
-          message: message,
-        };
       });
+    } catch (e) {
+      let message = 'Azure Monitor: ';
+      message += e.statusText ? e.statusText + ': ' : '';
+
+      if (e.data && e.data.error && e.data.error.code) {
+        message += e.data.error.code + '. ' + e.data.error.message;
+      } else if (e.data && e.data.error) {
+        message += e.data.error;
+      } else if (e.data) {
+        message += e.data;
+      } else {
+        message += 'Cannot connect to Azure Monitor REST API.';
+      }
+      return {
+        status: 'error',
+        message: message,
+      };
+    }
   }
 
   private validateDatasource(): DatasourceValidationResult | undefined {
@@ -520,13 +536,6 @@ export default class AzureMonitorDatasource extends DataSourceWithBackend<AzureM
       }
     }
 
-    if (!this.isValidConfigField(this.subscriptionId)) {
-      return {
-        status: 'error',
-        message: 'The Subscription Id field is required.',
-      };
-    }
-
     return undefined;
   }
 
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/ArgQueryEditor/ArgQueryEditor.tsx b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/ArgQueryEditor/ArgQueryEditor.tsx
index 27b05b063bc..c5405cfc2da 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/ArgQueryEditor/ArgQueryEditor.tsx
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/ArgQueryEditor/ArgQueryEditor.tsx
@@ -8,7 +8,7 @@ import QueryField from './QueryField';
 interface LogsQueryEditorProps {
   query: AzureMonitorQuery;
   datasource: Datasource;
-  subscriptionId: string;
+  subscriptionId?: string;
   onChange: (newQuery: AzureMonitorQuery) => void;
   variableOptionGroup: { label: string; options: AzureMonitorOption[] };
   setError: (source: string, error: AzureMonitorErrorish | undefined) => void;
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/AzureCredentialsForm.tsx b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/AzureCredentialsForm.tsx
index 3ff9b32cc35..af5fa69f081 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/AzureCredentialsForm.tsx
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/AzureCredentialsForm.tsx
@@ -29,7 +29,7 @@ export const AzureCredentialsForm: FunctionComponent<Props> = (props: Props) =>
   const hasRequiredFields = isCredentialsComplete(credentials);
 
   const [subscriptions, setSubscriptions] = useState<Array<SelectableValue<string>>>([]);
-  const [loadSubscriptions, onLoadSubscriptions] = useReducer((val) => val + 1, 0);
+  const [loadSubscriptionsClicked, onLoadSubscriptions] = useReducer((val) => val + 1, 0);
   useEffect(() => {
     if (!getSubscriptions || !hasRequiredFields) {
       updateSubscriptions([]);
@@ -38,7 +38,7 @@ export const AzureCredentialsForm: FunctionComponent<Props> = (props: Props) =>
     let canceled = false;
     getSubscriptions().then((result) => {
       if (!canceled) {
-        updateSubscriptions(result);
+        updateSubscriptions(result, loadSubscriptionsClicked);
       }
     });
     return () => {
@@ -46,18 +46,18 @@ export const AzureCredentialsForm: FunctionComponent<Props> = (props: Props) =>
     };
     // This effect is intended to be called only once initially and on Load Subscriptions click
     // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [loadSubscriptions]);
+  }, [loadSubscriptionsClicked]);
 
-  const updateSubscriptions = (received: Array<SelectableValue<string>>) => {
+  const updateSubscriptions = (received: Array<SelectableValue<string>>, autoSelect = false) => {
     setSubscriptions(received);
     if (getSubscriptions) {
-      if (!credentials.defaultSubscriptionId && received.length > 0) {
-        // Setting the default subscription if subscriptions received but no default subscription selected
+      if (autoSelect && !credentials.defaultSubscriptionId && received.length > 0) {
+        // Selecting the default subscription if subscriptions received but no default subscription selected
         onSubscriptionChange(received[0]);
       } else if (credentials.defaultSubscriptionId) {
         const found = received.find((opt) => opt.value === credentials.defaultSubscriptionId);
         if (!found) {
-          // Unsetting the default found if it isn't found among the received subscriptions
+          // Unselecting the default subscription if it isn't found among the received subscriptions
           onSubscriptionChange(undefined);
         }
       }
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/LogsQueryEditor/LogsQueryEditor.tsx b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/LogsQueryEditor/LogsQueryEditor.tsx
index e4e7ab85232..7a57f51ccf1 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/LogsQueryEditor/LogsQueryEditor.tsx
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/LogsQueryEditor/LogsQueryEditor.tsx
@@ -10,7 +10,7 @@ import useMigrations from './useMigrations';
 interface LogsQueryEditorProps {
   query: AzureMonitorQuery;
   datasource: Datasource;
-  subscriptionId: string;
+  subscriptionId?: string;
   onChange: (newQuery: AzureMonitorQuery) => void;
   variableOptionGroup: { label: string; options: AzureMonitorOption[] };
   setError: (source: string, error: AzureMonitorErrorish | undefined) => void;
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/LogsQueryEditor/WorkspaceField.tsx b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/LogsQueryEditor/WorkspaceField.tsx
index e222cdd6a1f..9326624cf18 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/LogsQueryEditor/WorkspaceField.tsx
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/LogsQueryEditor/WorkspaceField.tsx
@@ -19,6 +19,7 @@ const WorkspaceField: React.FC<AzureQueryEditorFieldProps> = ({
   useEffect(() => {
     if (!subscriptionId) {
       workspaces.length > 0 && setWorkspaces([]);
+      return;
     }
 
     datasource
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/MetricsQueryEditor/MetricsQueryEditor.tsx b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/MetricsQueryEditor/MetricsQueryEditor.tsx
index b9246a71d9d..842a358ba93 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/MetricsQueryEditor/MetricsQueryEditor.tsx
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/MetricsQueryEditor/MetricsQueryEditor.tsx
@@ -19,7 +19,7 @@ import { InlineFieldRow } from '@grafana/ui';
 interface MetricsQueryEditorProps {
   query: AzureMonitorQuery;
   datasource: Datasource;
-  subscriptionId: string;
+  subscriptionId?: string;
   onChange: (newQuery: AzureMonitorQuery) => void;
   variableOptionGroup: { label: string; options: AzureMonitorOption[] };
   setError: (source: string, error: AzureMonitorErrorish | undefined) => void;
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/QueryEditor/QueryEditor.tsx b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/QueryEditor/QueryEditor.tsx
index 42d6af3b9fb..3de7f2a5347 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/QueryEditor/QueryEditor.tsx
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/QueryEditor/QueryEditor.tsx
@@ -20,7 +20,7 @@ interface BaseQueryEditorProps {
 
 const QueryEditor: React.FC<BaseQueryEditorProps> = ({ query, datasource, onChange }) => {
   const [errorMessage, setError] = useLastError();
-  const subscriptionId = query.subscription || datasource.azureMonitorDatasource.subscriptionId;
+  const subscriptionId = query.subscription || datasource.azureMonitorDatasource.defaultSubscriptionId;
   const variableOptionGroup = {
     label: 'Template Variables',
     options: datasource.getVariables().map((v) => ({ label: v, value: v })),
@@ -52,7 +52,7 @@ const QueryEditor: React.FC<BaseQueryEditorProps> = ({ query, datasource, onChan
 };
 
 interface EditorForQueryTypeProps extends BaseQueryEditorProps {
-  subscriptionId: string;
+  subscriptionId?: string;
   setError: (source: string, error: AzureMonitorErrorish | undefined) => void;
 }
 
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/SubscriptionField.tsx b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/SubscriptionField.tsx
index 46db33ad2ad..9c636febbf5 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/SubscriptionField.tsx
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/SubscriptionField.tsx
@@ -23,10 +23,6 @@ const SubscriptionField: React.FC<SubscriptionFieldProps> = ({
   const [subscriptions, setSubscriptions] = useState<AzureMonitorOption[]>([]);
 
   useEffect(() => {
-    if (!datasource.azureMonitorDatasource.isConfigured()) {
-      return;
-    }
-
     datasource.azureMonitorDatasource
       .getSubscriptions()
       .then((results) => {
@@ -34,28 +30,22 @@ const SubscriptionField: React.FC<SubscriptionFieldProps> = ({
         setSubscriptions(newSubscriptions);
         setError(ERROR_SOURCE, undefined);
 
-        // Set a default subscription ID, if we can
-        let newSubscription = query.subscription;
-
-        if (!newSubscription && query.queryType === AzureQueryType.AzureMonitor) {
-          newSubscription = datasource.azureMonitorDatasource.subscriptionId;
-        } else if (!query.subscription && query.queryType === AzureQueryType.LogAnalytics) {
-          newSubscription = datasource.azureLogAnalyticsDatasource.subscriptionId;
-        }
+        let newSubscription = query.subscription || datasource.azureMonitorDatasource.defaultSubscriptionId;
 
         if (!newSubscription && newSubscriptions.length > 0) {
           newSubscription = newSubscriptions[0].value;
         }
 
-        newSubscription !== query.subscription &&
+        if (newSubscription && newSubscription !== query.subscription) {
           onQueryChange({
             ...query,
             subscription: newSubscription,
           });
+        }
       })
       .catch((err) => setError(ERROR_SOURCE, err));
   }, [
-    datasource.azureLogAnalyticsDatasource?.subscriptionId,
+    datasource.azureMonitorDatasource?.defaultSubscriptionId,
     datasource.azureMonitorDatasource,
     onQueryChange,
     query,
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/metrics.ts b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/metrics.ts
index d6dd2af54e6..1fbf9b2af18 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/metrics.ts
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/components/metrics.ts
@@ -14,7 +14,7 @@ export interface MetricMetadata {
 export function useMetricsMetadata(
   datasource: Datasource,
   query: AzureMonitorQuery,
-  subscriptionId: string,
+  subscriptionId: string | undefined,
   onQueryChange: (newQuery: AzureMonitorQuery) => void
 ) {
   const [metricMetadata, setMetricMetadata] = useState<MetricMetadata>({
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/datasource.ts b/public/app/plugins/datasource/grafana-azure-monitor-datasource/datasource.ts
index 3376523f79f..7ca7a041022 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/datasource.ts
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/datasource.ts
@@ -150,26 +150,13 @@ export default class Datasource extends DataSourceApi<AzureMonitorQuery, AzureDa
   async testDatasource(): Promise<DatasourceValidationResult> {
     const promises: Array<Promise<DatasourceValidationResult>> = [];
 
-    if (this.azureMonitorDatasource.isConfigured()) {
-      promises.push(this.azureMonitorDatasource.testDatasource());
-    }
+    promises.push(this.azureMonitorDatasource.testDatasource());
+    promises.push(this.azureLogAnalyticsDatasource.testDatasource());
 
     if (this.appInsightsDatasource.isConfigured()) {
       promises.push(this.appInsightsDatasource.testDatasource());
     }
 
-    if (this.azureLogAnalyticsDatasource.isConfigured()) {
-      promises.push(this.azureLogAnalyticsDatasource.testDatasource());
-    }
-
-    if (promises.length === 0) {
-      return {
-        status: 'error',
-        message: `Nothing configured. At least one of the API's must be configured.`,
-        title: 'Error',
-      };
-    }
-
     return await Promise.all(promises).then((results) => {
       let status: 'success' | 'error' = 'success';
       let message = '';
diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/types/index.ts b/public/app/plugins/datasource/grafana-azure-monitor-datasource/types/index.ts
index cb696c186da..606be553933 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/types/index.ts
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/types/index.ts
@@ -222,7 +222,7 @@ export interface AzureMonitorOption<T = string> {
 export interface AzureQueryEditorFieldProps {
   query: AzureMonitorQuery;
   datasource: Datasource;
-  subscriptionId: string;
+  subscriptionId?: string;
   variableOptionGroup: { label: string; options: AzureMonitorOption[] };
 
   onQueryChange: (newQuery: AzureMonitorQuery) => void;