diff --git a/src/AddThreepid.js b/src/AddThreepid.js
index 7a3250d0ca..1fc492ef85 100644
--- a/src/AddThreepid.js
+++ b/src/AddThreepid.js
@@ -21,6 +21,7 @@ import * as sdk from './index';
 import Modal from './Modal';
 import { _t } from './languageHandler';
 import IdentityAuthClient from './IdentityAuthClient';
+import {SSOAuthEntry} from "./components/views/auth/InteractiveAuthEntryComponents";
 
 function getIdServerDomain() {
     return MatrixClientPeg.get().idBaseUrl.split("://")[1];
@@ -188,11 +189,30 @@ export default class AddThreepid {
                         // pop up an interactive auth dialog
                         const InteractiveAuthDialog = sdk.getComponent("dialogs.InteractiveAuthDialog");
 
+
+                        const dialogAesthetics = {
+                            [SSOAuthEntry.PHASE_PREAUTH]: {
+                                title: _t("Use Single Sign On to continue"),
+                                body: _t("Confirm adding this email address by using Single Sign On to prove your identity."),
+                                continueText: _t("Single Sign On"),
+                                continueKind: "primary",
+                            },
+                            [SSOAuthEntry.PHASE_POSTAUTH]: {
+                                title: _t("Confirm adding email"),
+                                body: _t("Click the button below to confirm adding this email address."),
+                                continueText: _t("Confirm"),
+                                continueKind: "primary",
+                            },
+                        };
                         const { finished } = Modal.createTrackedDialog('Add Email', '', InteractiveAuthDialog, {
                             title: _t("Add Email Address"),
                             matrixClient: MatrixClientPeg.get(),
                             authData: e.data,
                             makeRequest: this._makeAddThreepidOnlyRequest,
+                            aestheticsForStagePhases: {
+                                [SSOAuthEntry.LOGIN_TYPE]: dialogAesthetics,
+                                [SSOAuthEntry.UNSTABLE_LOGIN_TYPE]: dialogAesthetics,
+                            },
                         });
                         return finished;
                     }
@@ -285,11 +305,29 @@ export default class AddThreepid {
                     // pop up an interactive auth dialog
                     const InteractiveAuthDialog = sdk.getComponent("dialogs.InteractiveAuthDialog");
 
+                    const dialogAesthetics = {
+                        [SSOAuthEntry.PHASE_PREAUTH]: {
+                            title: _t("Use Single Sign On to continue"),
+                            body: _t("Confirm adding this phone number by using Single Sign On to prove your identity."),
+                            continueText: _t("Single Sign On"),
+                            continueKind: "primary",
+                        },
+                        [SSOAuthEntry.PHASE_POSTAUTH]: {
+                            title: _t("Confirm adding phone number"),
+                            body: _t("Click the button below to confirm adding this phone number."),
+                            continueText: _t("Confirm"),
+                            continueKind: "primary",
+                        },
+                    };
                     const { finished } = Modal.createTrackedDialog('Add MSISDN', '', InteractiveAuthDialog, {
                         title: _t("Add Phone Number"),
                         matrixClient: MatrixClientPeg.get(),
                         authData: e.data,
                         makeRequest: this._makeAddThreepidOnlyRequest,
+                        aestheticsForStagePhases: {
+                            [SSOAuthEntry.LOGIN_TYPE]: dialogAesthetics,
+                            [SSOAuthEntry.UNSTABLE_LOGIN_TYPE]: dialogAesthetics,
+                        },
                     });
                     return finished;
                 }
diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index ecc2698f6d..572268f90d 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -1,8 +1,17 @@
 {
     "This email address is already in use": "This email address is already in use",
     "This phone number is already in use": "This phone number is already in use",
+    "Use Single Sign On to continue": "Use Single Sign On to continue",
+    "Confirm adding this email address by using Single Sign On to prove your identity.": "Confirm adding this email address by using Single Sign On to prove your identity.",
+    "Single Sign On": "Single Sign On",
+    "Confirm adding email": "Confirm adding email",
+    "Click the button below to confirm adding this email address.": "Click the button below to confirm adding this email address.",
+    "Confirm": "Confirm",
     "Add Email Address": "Add Email Address",
     "Failed to verify email address: make sure you clicked the link in the email": "Failed to verify email address: make sure you clicked the link in the email",
+    "Confirm adding this phone number by using Single Sign On to prove your identity.": "Confirm adding this phone number by using Single Sign On to prove your identity.",
+    "Confirm adding phone number": "Confirm adding phone number",
+    "Click the button below to confirm adding this phone number.": "Click the button below to confirm adding this phone number.",
     "Add Phone Number": "Add Phone Number",
     "The platform you're on": "The platform you're on",
     "The version of Riot": "The version of Riot",
@@ -598,9 +607,7 @@
     "up to date": "up to date",
     "Your homeserver does not support session management.": "Your homeserver does not support session management.",
     "Unable to load session list": "Unable to load session list",
-    "Use Single Sign On to continue": "Use Single Sign On to continue",
     "Confirm deleting these sessions by using Single Sign On to prove your identity.": "Confirm deleting these sessions by using Single Sign On to prove your identity.",
-    "Single Sign On": "Single Sign On",
     "Confirm deleting these sessions": "Confirm deleting these sessions",
     "Click the button below to confirm deleting these sessions.": "Click the button below to confirm deleting these sessions.",
     "Delete sessions": "Delete sessions",
@@ -1837,7 +1844,6 @@
     "Please enter the code it contains:": "Please enter the code it contains:",
     "Code": "Code",
     "Submit": "Submit",
-    "Confirm": "Confirm",
     "Start authentication": "Start authentication",
     "Unable to validate homeserver/identity server": "Unable to validate homeserver/identity server",
     "Your Modular server": "Your Modular server",