diff --git a/addons/core/README.md b/addons/core/README.md
index 98d3efe2f..1b0dd33e9 100644
--- a/addons/core/README.md
+++ b/addons/core/README.md
@@ -35,6 +35,24 @@ To use internationalization features, install `ember-intl` into your project:
 
 To access translations within a template, see `ember-intl` docs.
 
+## Notifications
+
+To use in-app notifications, first install `ember-notify` in your app.  Then use
+the notificaiton decorators to notify the user when a function or action
+succeeds or fails.  For example:
+
+```js
+import { notifySuccess, notifyError } from 'core/decorators/notify';
+
+export default class ExampleRoute extends Route {
+  @notifyError(({ message }) => message, { catch: true })
+  @notifySuccess('notifications.delete-success')
+  async myAction() {
+    // do something
+  }
+}
+```
+
 ## Confirmations
 
 This addon exposes a service to request confirmations and the component
diff --git a/ui/admin/app/decorators/notify.js b/addons/core/addon/decorators/notify.js
similarity index 100%
rename from ui/admin/app/decorators/notify.js
rename to addons/core/addon/decorators/notify.js
diff --git a/addons/core/app/decorators/notify.js b/addons/core/app/decorators/notify.js
new file mode 100644
index 000000000..b878e37d9
--- /dev/null
+++ b/addons/core/app/decorators/notify.js
@@ -0,0 +1 @@
+export { default } from 'core/decorators/notify';
diff --git a/ui/admin/app/routes/account/change-password.js b/ui/admin/app/routes/account/change-password.js
index e1c672d1b..bf097e196 100644
--- a/ui/admin/app/routes/account/change-password.js
+++ b/ui/admin/app/routes/account/change-password.js
@@ -1,7 +1,7 @@
 import Route from '@ember/routing/route';
 import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
-import { notifySuccess, notifyError } from '../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 /**
  * The change password flow is associated only with password-type auth methods.
diff --git a/ui/admin/app/routes/scopes/scope.js b/ui/admin/app/routes/scopes/scope.js
index 3dc171cb0..705c8d168 100644
--- a/ui/admin/app/routes/scopes/scope.js
+++ b/ui/admin/app/routes/scopes/scope.js
@@ -4,7 +4,7 @@ import { A } from '@ember/array';
 import { action } from '@ember/object';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/auth-methods.js b/ui/admin/app/routes/scopes/scope/auth-methods.js
index b0e9e32e3..81b4347da 100644
--- a/ui/admin/app/routes/scopes/scope/auth-methods.js
+++ b/ui/admin/app/routes/scopes/scope/auth-methods.js
@@ -3,7 +3,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeAuthMethodsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/auth-methods/auth-method/accounts.js b/ui/admin/app/routes/scopes/scope/auth-methods/auth-method/accounts.js
index b598ca278..4e177662a 100644
--- a/ui/admin/app/routes/scopes/scope/auth-methods/auth-method/accounts.js
+++ b/ui/admin/app/routes/scopes/scope/auth-methods/auth-method/accounts.js
@@ -3,7 +3,7 @@ import { action } from '@ember/object';
 import { inject as service } from '@ember/service';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeAuthMethodsAuthMethodAccountsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/auth-methods/auth-method/accounts/account/set-password.js b/ui/admin/app/routes/scopes/scope/auth-methods/auth-method/accounts/account/set-password.js
index 55fe81986..72d2c0609 100644
--- a/ui/admin/app/routes/scopes/scope/auth-methods/auth-method/accounts/account/set-password.js
+++ b/ui/admin/app/routes/scopes/scope/auth-methods/auth-method/accounts/account/set-password.js
@@ -5,7 +5,7 @@ import loading from 'ember-loading/decorator';
 import {
   notifySuccess,
   notifyError,
-} from '../../../../../../../decorators/notify';
+} from 'core/decorators/notify';
 
 export default class ScopesScopeAuthMethodsAuthMethodAccountsAccountSettingsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/groups.js b/ui/admin/app/routes/scopes/scope/groups.js
index 5e3628c15..7fa556182 100644
--- a/ui/admin/app/routes/scopes/scope/groups.js
+++ b/ui/admin/app/routes/scopes/scope/groups.js
@@ -3,7 +3,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeGroupsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/groups/group/add-members.js b/ui/admin/app/routes/scopes/scope/groups/group/add-members.js
index d4f392684..a447908e7 100644
--- a/ui/admin/app/routes/scopes/scope/groups/group/add-members.js
+++ b/ui/admin/app/routes/scopes/scope/groups/group/add-members.js
@@ -3,7 +3,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import { hash } from 'rsvp';
 import loading from 'ember-loading/decorator';
-import { notifySuccess, notifyError } from '../../../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeGroupsGroupAddMembersRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/groups/group/members.js b/ui/admin/app/routes/scopes/scope/groups/group/members.js
index 97bd17a30..51ca9d353 100644
--- a/ui/admin/app/routes/scopes/scope/groups/group/members.js
+++ b/ui/admin/app/routes/scopes/scope/groups/group/members.js
@@ -4,7 +4,7 @@ import { inject as service } from '@ember/service';
 import { hash, all } from 'rsvp';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeGroupsGroupMembersRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/host-catalogs.js b/ui/admin/app/routes/scopes/scope/host-catalogs.js
index ce7cf6353..53fd92f7a 100644
--- a/ui/admin/app/routes/scopes/scope/host-catalogs.js
+++ b/ui/admin/app/routes/scopes/scope/host-catalogs.js
@@ -3,7 +3,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeHostCatalogsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets.js b/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets.js
index b2323fdaf..beb0aa93a 100644
--- a/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets.js
+++ b/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets.js
@@ -3,7 +3,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeHostCatalogsHostCatalogHostSetsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets/host-set/add-hosts.js b/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets/host-set/add-hosts.js
index 6c67301f2..b92c16814 100644
--- a/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets/host-set/add-hosts.js
+++ b/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets/host-set/add-hosts.js
@@ -6,7 +6,7 @@ import loading from 'ember-loading/decorator';
 import {
   notifySuccess,
   notifyError,
-} from '../../../../../../../decorators/notify';
+} from 'core/decorators/notify';
 
 export default class ScopesScopeHostCatalogsHostCatalogHostSetsHostSetAddHostsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets/host-set/create-and-add-host.js b/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets/host-set/create-and-add-host.js
index 3447a260b..977fc45f4 100644
--- a/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets/host-set/create-and-add-host.js
+++ b/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets/host-set/create-and-add-host.js
@@ -5,7 +5,7 @@ import loading from 'ember-loading/decorator';
 import {
   notifySuccess,
   notifyError,
-} from '../../../../../../../decorators/notify';
+} from 'core/decorators/notify';
 
 export default class ScopesScopeHostCatalogsHostCatalogHostSetsHostSetCreateAndAddHostRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets/host-set/hosts.js b/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets/host-set/hosts.js
index 8bc4a25fa..5c3fbae73 100644
--- a/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets/host-set/hosts.js
+++ b/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/host-sets/host-set/hosts.js
@@ -7,7 +7,7 @@ import { confirm } from 'core/decorators/confirm';
 import {
   notifySuccess,
   notifyError,
-} from '../../../../../../../decorators/notify';
+} from 'core/decorators/notify';
 
 export default class ScopesScopeHostCatalogsHostCatalogHostSetsHostSetHostsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/hosts.js b/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/hosts.js
index ee964d5f6..a41073688 100644
--- a/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/hosts.js
+++ b/ui/admin/app/routes/scopes/scope/host-catalogs/host-catalog/hosts.js
@@ -3,7 +3,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeHostCatalogsHostCatalogHostsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/roles.js b/ui/admin/app/routes/scopes/scope/roles.js
index fb93bcaaa..88d05373b 100644
--- a/ui/admin/app/routes/scopes/scope/roles.js
+++ b/ui/admin/app/routes/scopes/scope/roles.js
@@ -3,7 +3,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeRolesRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/roles/role/add-principals.js b/ui/admin/app/routes/scopes/scope/roles/role/add-principals.js
index 861ceb1c5..1517470d3 100644
--- a/ui/admin/app/routes/scopes/scope/roles/role/add-principals.js
+++ b/ui/admin/app/routes/scopes/scope/roles/role/add-principals.js
@@ -3,7 +3,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import { hash } from 'rsvp';
 import loading from 'ember-loading/decorator';
-import { notifySuccess, notifyError } from '../../../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeRolesRoleAddPrincipalsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/roles/role/grants.js b/ui/admin/app/routes/scopes/scope/roles/role/grants.js
index 721e93446..0f051e359 100644
--- a/ui/admin/app/routes/scopes/scope/roles/role/grants.js
+++ b/ui/admin/app/routes/scopes/scope/roles/role/grants.js
@@ -2,7 +2,7 @@ import Route from '@ember/routing/route';
 import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import loading from 'ember-loading/decorator';
-import { notifySuccess, notifyError } from '../../../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeRolesRoleGrantsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/roles/role/principals.js b/ui/admin/app/routes/scopes/scope/roles/role/principals.js
index 910bee7f4..b69b6e3ac 100644
--- a/ui/admin/app/routes/scopes/scope/roles/role/principals.js
+++ b/ui/admin/app/routes/scopes/scope/roles/role/principals.js
@@ -4,7 +4,7 @@ import { action } from '@ember/object';
 import { inject as service } from '@ember/service';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeRolesRolePrincipalsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/sessions.js b/ui/admin/app/routes/scopes/scope/sessions.js
index a8ae5eb19..2bcb606c1 100644
--- a/ui/admin/app/routes/scopes/scope/sessions.js
+++ b/ui/admin/app/routes/scopes/scope/sessions.js
@@ -4,7 +4,7 @@ import { action } from '@ember/object';
 import { all, hash } from 'rsvp';
 import { task, timeout } from 'ember-concurrency';
 import { A } from '@ember/array';
-import { notifySuccess, notifyError } from '../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 import config from '../../../config/environment';
 
 const POLL_TIMEOUT_SECONDS = config.sessionPollingTimeoutSeconds;
diff --git a/ui/admin/app/routes/scopes/scope/targets.js b/ui/admin/app/routes/scopes/scope/targets.js
index 232d8f92e..40cd811bb 100644
--- a/ui/admin/app/routes/scopes/scope/targets.js
+++ b/ui/admin/app/routes/scopes/scope/targets.js
@@ -3,7 +3,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeTargetsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/targets/target/add-host-sets.js b/ui/admin/app/routes/scopes/scope/targets/target/add-host-sets.js
index e7851f15c..15cb88ddd 100644
--- a/ui/admin/app/routes/scopes/scope/targets/target/add-host-sets.js
+++ b/ui/admin/app/routes/scopes/scope/targets/target/add-host-sets.js
@@ -3,7 +3,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import { all } from 'rsvp';
 import loading from 'ember-loading/decorator';
-import { notifySuccess, notifyError } from '../../../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeTargetsTargetAddHostSetsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/targets/target/host-sets.js b/ui/admin/app/routes/scopes/scope/targets/target/host-sets.js
index 62468fca6..8bc1b1bd0 100644
--- a/ui/admin/app/routes/scopes/scope/targets/target/host-sets.js
+++ b/ui/admin/app/routes/scopes/scope/targets/target/host-sets.js
@@ -4,7 +4,7 @@ import { action } from '@ember/object';
 import { inject as service } from '@ember/service';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeTargetsTargetHostSetsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/users.js b/ui/admin/app/routes/scopes/scope/users.js
index de60dd833..42f9c8832 100644
--- a/ui/admin/app/routes/scopes/scope/users.js
+++ b/ui/admin/app/routes/scopes/scope/users.js
@@ -3,7 +3,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import loading from 'ember-loading/decorator';
 import { confirm } from 'core/decorators/confirm';
-import { notifySuccess, notifyError } from '../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeUsersRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/users/user/accounts.js b/ui/admin/app/routes/scopes/scope/users/user/accounts.js
index 4408bdd5c..8f2e264ea 100644
--- a/ui/admin/app/routes/scopes/scope/users/user/accounts.js
+++ b/ui/admin/app/routes/scopes/scope/users/user/accounts.js
@@ -3,7 +3,7 @@ import { action } from '@ember/object';
 import { inject as service } from '@ember/service';
 import { hash, all } from 'rsvp';
 import loading from 'ember-loading/decorator';
-import { notifySuccess, notifyError } from '../../../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeUsersUserAccountsRoute extends Route {
   // =services
diff --git a/ui/admin/app/routes/scopes/scope/users/user/add-accounts.js b/ui/admin/app/routes/scopes/scope/users/user/add-accounts.js
index 3a1e22f4e..9fce2d85e 100644
--- a/ui/admin/app/routes/scopes/scope/users/user/add-accounts.js
+++ b/ui/admin/app/routes/scopes/scope/users/user/add-accounts.js
@@ -3,7 +3,7 @@ import { inject as service } from '@ember/service';
 import { action } from '@ember/object';
 import { all } from 'rsvp';
 import loading from 'ember-loading/decorator';
-import { notifySuccess, notifyError } from '../../../../../decorators/notify';
+import { notifySuccess, notifyError } from 'core/decorators/notify';
 
 export default class ScopesScopeUsersUserAddAccountsRoute extends Route {
   // =services