diff --git a/grafana-plugin/src/containers/ColumnsSelectorWrapper/ColumnsModal.tsx b/grafana-plugin/src/containers/ColumnsSelectorWrapper/ColumnsModal.tsx
index 7ca7d07d..dead50d3 100644
--- a/grafana-plugin/src/containers/ColumnsSelectorWrapper/ColumnsModal.tsx
+++ b/grafana-plugin/src/containers/ColumnsSelectorWrapper/ColumnsModal.tsx
@@ -26,6 +26,7 @@ import { ApiSchemas } from 'network/oncall-api/api.types';
 import { components } from 'network/oncall-api/autogenerated-api.types';
 import { useStore } from 'state/useStore';
 import { UserActions } from 'utils/authorization/authorization';
+import { PROCESSING_REQUEST_ERROR } from 'utils/consts';
 import { WrapWithGlobalNotification } from 'utils/decorators';
 import { useDebouncedCallback, useIsLoading } from 'utils/hooks';
 import { pluralize } from 'utils/utils';
@@ -142,7 +143,7 @@ export const ColumnsModal: React.FC<ColumnsModalProps> = observer(
                 variant="primary"
                 onClick={WrapWithGlobalNotification(onAddNewColumns, {
                   success: 'New column has been added to the list.',
-                  failure: 'There was an error processing your request. Please try again.',
+                  failure: PROCESSING_REQUEST_ERROR,
                 })}
               >
                 {isLoading ? <LoadingPlaceholder className={cx('loadingPlaceholder')} text="Loading..." /> : 'Add'}
diff --git a/grafana-plugin/src/containers/ColumnsSelectorWrapper/ColumnsSelectorWrapper.tsx b/grafana-plugin/src/containers/ColumnsSelectorWrapper/ColumnsSelectorWrapper.tsx
index fe7ccc9d..eb346615 100644
--- a/grafana-plugin/src/containers/ColumnsSelectorWrapper/ColumnsSelectorWrapper.tsx
+++ b/grafana-plugin/src/containers/ColumnsSelectorWrapper/ColumnsSelectorWrapper.tsx
@@ -13,6 +13,7 @@ import { ActionKey } from 'models/loader/action-keys';
 import { ApiSchemas } from 'network/oncall-api/api.types';
 import { useStore } from 'state/useStore';
 import { UserActions } from 'utils/authorization/authorization';
+import { PROCESSING_REQUEST_ERROR } from 'utils/consts';
 import { WrapAutoLoadingState, WrapWithGlobalNotification } from 'utils/decorators';
 import { useIsLoading } from 'utils/hooks';
 
@@ -81,7 +82,7 @@ export const ColumnsSelectorWrapper: React.FC<ColumnsSelectorWrapperProps> = obs
                 onClick={WrapAutoLoadingState(
                   WrapWithGlobalNotification(onColumnRemovalClick, {
                     success: 'Column has been removed from the list.',
-                    failure: 'There was an error processing your request. Please try again',
+                    failure: PROCESSING_REQUEST_ERROR,
                   }),
                   ActionKey.REMOVE_COLUMN_FROM_ALERT_GROUP
                 )}
diff --git a/grafana-plugin/src/containers/IntegrationLabelsForm/IntegrationLabelsForm.tsx b/grafana-plugin/src/containers/IntegrationLabelsForm/IntegrationLabelsForm.tsx
index bee1cb62..e5dd7b26 100644
--- a/grafana-plugin/src/containers/IntegrationLabelsForm/IntegrationLabelsForm.tsx
+++ b/grafana-plugin/src/containers/IntegrationLabelsForm/IntegrationLabelsForm.tsx
@@ -284,32 +284,16 @@ const CustomLabels = (props: CustomLabelsProps) => {
   };
 
   const onLoadKeys = async (search?: string) => {
-    let result = undefined;
-
-    try {
-      result = await labelsStore.loadKeys(search);
-    } catch (error) {
-      openErrorNotification('There was an error processing your request. Please try again');
-    }
-
-    const groups = splitToGroups(result);
-
-    return groups;
+    const result = await labelsStore.loadKeys(search);
+    return splitToGroups(result);
   };
 
   const onLoadValuesForKey = async (key: string, search?: string) => {
-    let result = undefined;
-
-    try {
-      const { values } = await labelsStore.loadValuesForKey(key, search);
-      result = values;
-    } catch (error) {
-      openErrorNotification('There was an error processing your request. Please try again');
+    if (!key) {
+      return [];
     }
-
-    const groups = splitToGroups(result);
-
-    return groups;
+    const { values } = await labelsStore.loadValuesForKey(key, search);
+    return splitToGroups(values);
   };
 
   return (
diff --git a/grafana-plugin/src/containers/Labels/Labels.tsx b/grafana-plugin/src/containers/Labels/Labels.tsx
index d7a76ff8..02625f46 100644
--- a/grafana-plugin/src/containers/Labels/Labels.tsx
+++ b/grafana-plugin/src/containers/Labels/Labels.tsx
@@ -49,30 +49,16 @@ const _Labels = observer(
     );
 
     const onLoadKeys = async (search?: string) => {
-      let result = undefined;
-      try {
-        result = await labelsStore.loadKeys(search);
-      } catch (error) {
-        openErrorNotification('There was an error processing your request. Please try again');
-      }
-
-      const groups = splitToGroups(result);
-
-      return groups;
+      const result = await labelsStore.loadKeys(search);
+      return splitToGroups(result);
     };
 
     const onLoadValuesForKey = async (key: string, search?: string) => {
-      let result = undefined;
-      try {
-        const { values } = await labelsStore.loadValuesForKey(key, search);
-        result = values;
-      } catch (error) {
-        openErrorNotification('There was an error processing your request. Please try again');
+      if (!key) {
+        return [];
       }
-
-      const groups = splitToGroups(result);
-
-      return groups;
+      const { values } = await labelsStore.loadValuesForKey(key, search);
+      return splitToGroups(values);
     };
 
     const isValid = () => {
diff --git a/grafana-plugin/src/containers/RouteLabelsDisplay/RouteLabelsDisplay.tsx b/grafana-plugin/src/containers/RouteLabelsDisplay/RouteLabelsDisplay.tsx
index 17743e8e..cd3c64fc 100644
--- a/grafana-plugin/src/containers/RouteLabelsDisplay/RouteLabelsDisplay.tsx
+++ b/grafana-plugin/src/containers/RouteLabelsDisplay/RouteLabelsDisplay.tsx
@@ -32,28 +32,17 @@ export const RouteLabelsDisplay: React.FC<RouteLabelsDisplayProps> = ({ labels,
   };
 
   const onLoadKeys = async (search?: string) => {
-    let result = undefined;
-
-    try {
-      result = await labelsStore.loadKeys(search);
-    } catch (error) {
-      openErrorNotification('There was an error processing your request. Please try again');
-    }
-
+    const result = await labelsStore.loadKeys(search);
     return splitToGroups(result);
   };
 
   const onLoadValuesForKey = async (key: string, search?: string) => {
-    let result = undefined;
-
-    try {
-      const { values } = await labelsStore.loadValuesForKey(key, search);
-      result = values;
-    } catch (error) {
-      openErrorNotification('There was an error processing your request. Please try again');
+    if (!key) {
+      return [];
     }
 
-    return splitToGroups(result);
+    const { values } = await labelsStore.loadValuesForKey(key, search);
+    return splitToGroups(values);
   };
 
   return (
diff --git a/grafana-plugin/src/models/alertgroup/alertgroup.ts b/grafana-plugin/src/models/alertgroup/alertgroup.ts
index aefde6e6..ca4c11c5 100644
--- a/grafana-plugin/src/models/alertgroup/alertgroup.ts
+++ b/grafana-plugin/src/models/alertgroup/alertgroup.ts
@@ -9,7 +9,7 @@ import { onCallApi } from 'network/oncall-api/http-client';
 import { RootStore } from 'state/rootStore';
 import { SelectOption } from 'state/types';
 import { LocationHelper } from 'utils/LocationHelper';
-import { GENERIC_ERROR, PAGE } from 'utils/consts';
+import { GENERIC_ERROR, PAGE, PROCESSING_REQUEST_ERROR } from 'utils/consts';
 import { AutoLoadingState, WithGlobalNotification } from 'utils/decorators';
 
 import { AlertGroupHelper } from './alertgroup.helpers';
@@ -136,7 +136,7 @@ export class AlertGroupStore {
   @AutoLoadingState(ActionKey.REMOVE_COLUMN_FROM_ALERT_GROUP)
   @WithGlobalNotification({
     success: 'Column has been removed from the list.',
-    failure: 'There was an error processing your request. Please try again',
+    failure: PROCESSING_REQUEST_ERROR,
   })
   async removeTableColumn(
     columnToBeRemoved: AlertGroupColumn,
diff --git a/grafana-plugin/src/models/label/label.ts b/grafana-plugin/src/models/label/label.ts
index 0ca89ce3..7559632a 100644
--- a/grafana-plugin/src/models/label/label.ts
+++ b/grafana-plugin/src/models/label/label.ts
@@ -6,6 +6,7 @@ import { ApiSchemas } from 'network/oncall-api/api.types';
 import { components } from 'network/oncall-api/autogenerated-api.types';
 import { onCallApi } from 'network/oncall-api/http-client';
 import { RootStore } from 'state/rootStore';
+import { PROCESSING_REQUEST_ERROR } from 'utils/consts';
 import { WithGlobalNotification } from 'utils/decorators';
 
 export class LabelStore extends BaseStore {
@@ -17,6 +18,7 @@ export class LabelStore extends BaseStore {
     this.path = '/labels/';
   }
 
+  @WithGlobalNotification({ failure: PROCESSING_REQUEST_ERROR })
   @action.bound
   public async loadKeys(search = ''): Promise<Array<components['schemas']['LabelKey']>> {
     const { data } = await onCallApi().GET('/labels/keys/', undefined);
@@ -26,6 +28,7 @@ export class LabelStore extends BaseStore {
     return filtered;
   }
 
+  @WithGlobalNotification({ failure: PROCESSING_REQUEST_ERROR })
   @action.bound
   async loadValuesForKey(
     key: ApiSchemas['LabelKey']['id'],
diff --git a/grafana-plugin/src/utils/consts.ts b/grafana-plugin/src/utils/consts.ts
index a091378e..99b6a19a 100644
--- a/grafana-plugin/src/utils/consts.ts
+++ b/grafana-plugin/src/utils/consts.ts
@@ -97,5 +97,6 @@ export enum OnCallAGStatus {
 }
 
 export const GENERIC_ERROR = 'An error has occurred. Please try again';
+export const PROCESSING_REQUEST_ERROR = 'There was an error processing your request. Please try again';
 
 export const INTEGRATION_SERVICENOW = 'servicenow';