diff --git a/erpnext/docs/assets/img/setup/users/user-login-email.png b/erpnext/docs/assets/img/setup/users/user-login-email.png
new file mode 100644
index 00000000000..71050af5685
Binary files /dev/null and b/erpnext/docs/assets/img/setup/users/user-login-email.png differ
diff --git a/erpnext/docs/assets/img/setup/users/user-login-mobile.png b/erpnext/docs/assets/img/setup/users/user-login-mobile.png
new file mode 100644
index 00000000000..1d7af143052
Binary files /dev/null and b/erpnext/docs/assets/img/setup/users/user-login-mobile.png differ
diff --git a/erpnext/docs/user/manual/en/setting-up/settings/system-settings.md b/erpnext/docs/user/manual/en/setting-up/settings/system-settings.md
index 053b4f1a35e..b436b46dee2 100644
--- a/erpnext/docs/user/manual/en/setting-up/settings/system-settings.md
+++ b/erpnext/docs/user/manual/en/setting-up/settings/system-settings.md
@@ -2,6 +2,8 @@
You can localize ERPNext to use particular timezone, date, number or currency format and also set global session expiry via System Settings.
+By checking the 'Allow Login using Mobile Number' checkbox, you can login to ERPNext using a valid mobile number set in your User account.
+
To open System Settings, go to:
> Setup > Settings > System Settings
diff --git a/erpnext/docs/user/manual/en/setting-up/users-and-permissions/adding-users.md b/erpnext/docs/user/manual/en/setting-up/users-and-permissions/adding-users.md
index 517c6746e60..6fb64df37e5 100644
--- a/erpnext/docs/user/manual/en/setting-up/users-and-permissions/adding-users.md
+++ b/erpnext/docs/user/manual/en/setting-up/users-and-permissions/adding-users.md
@@ -20,7 +20,10 @@ To add a new user, click on "New"
Add user details such as First Name, Last Name, Email etc.
-The user's Email will become the user id.
+The user's Email will become the user id. Mobile No can also be used to log in if you check the Allow Login using Mobile No checkbox under the Security section in System Settings. While Mobile No will be unique, it will not be treated as a user id.
+
+
+
After adding these details, save the user.