openedx · ayub02 · Aug 13, 2026 · Aug 14, 2026 · Aug 14, 2026
diff --git a/source/_images/educators_homepage/lti_clipart.png b/source/_images/educators_homepage/lti_clipart.png
diff --git a/...ducators/how-tos/course_development/exercise_tools/set_up_lti_1_3_component.rst b/...ducators/how-tos/course_development/exercise_tools/set_up_lti_1_3_component.rst
@@ -103,6 +103,14 @@ Configure the Setup Tab
 
    Use the Setup tab to enter the LTI 1.3 launch values provided by the tool.
 
+
+.. note::
+
+   The values in this section come from the LTI tool. After you save the
+   XBlock, it will display a different set of values that you will need to
+   register with the external tool.
+
+
 Configure the *Setup* tab as per the following table:
 
 .. list-table::
@@ -143,6 +151,10 @@ Configure the *Setup* tab as per the following table:
        blank. The Open edX platform uses the launch URL and, when configured,
        the Deep Linking Launch URL as defaults.
 
+       If you enter redirect URIs, include every URI that the tool might request.
+       Entering this field replaces the default list. Redirect URIs must match
+       exactly, including the path and any trailing slash.
+
    * - Next
      - Click :guilabel:`Next` to continue.
 
@@ -343,17 +355,26 @@ values that the external tool will need.
    :alt: LTI Consumer XBlock showing the values an external tool needs to register the Open edX instance.
    :width: 80%
 
-Common Open edX platform values required by LTI 1.3 tools include:
+The LTI Consumer XBlock provides these registration values:
 
-* Issuer (your instance domain e.g. https://openedx.io)
 * Client ID
 * Deployment ID
 * Keyset URL
 * Access Token URL
 * Login URL
 
-External tools may use different names for these values and may not require
-all of them. Follow the tool vendor's instructions.
+.. important::
+
+   Most LTI tools also require an *Issuer*. The XBlock does not display the
+   Issuer as a separate value. Derive it from the *Keyset URL* or
+   *Access Token URL* by removing the ``/api/lti_consumer/...`` path. Do not
+   add a trailing slash.
+
+   For example, if the Keyset URL is
+   ``https://openedx.io/api/lti_consumer/v1/public_keysets/...``, the
+   Issuer is ``https://openedx.io``. An Authoring URL such as
+   ``https://apps.openedx.io/authoring/...`` is not the Issuer.
+
 
 Optional: Select Tool Content with Deep Linking
 ***********************************************
@@ -418,5 +439,5 @@ Publish and Test
 +--------------------+------------------------+----------+----------------+
 | Review Date        | Working Group Reviewer | Release  | Test situation |
 +--------------------+------------------------+----------+----------------+
-| 2026-06-25         | Aamir Ayub             | Verawood | Pass           |
+| 2026-07-13         | Aamir Ayub             | Verawood | Pass           |
 +--------------------+------------------------+----------+----------------+
diff --git a/...ators/how-tos/course_development/exercise_tools/setup_lti_reusable_consumer.rst b/...ators/how-tos/course_development/exercise_tools/setup_lti_reusable_consumer.rst
@@ -216,15 +216,26 @@ tool will need.
    :alt: LTI Consumer XBlock showing the values an external tool needs to register the Open edX instance.
    :width: 80%
 
-Common Open edX platform values required by LTI 1.3 tools include:
+The LTI Consumer XBlock provides these registration values:
 
-* Issuer (your instance domain e.g. https://openedx.io)
 * Client ID
 * Deployment ID
 * Keyset URL
 * Access Token URL
 * Login URL
 
+.. important::
+
+   Most LTI tools also require an *Issuer*. The XBlock does not display the
+   Issuer as a separate value. Derive it from the *Keyset URL* or
+   *Access Token URL* by removing the ``/api/lti_consumer/...`` path. Do not
+   add a trailing slash.
+
+   For example, if the Keyset URL is
+   ``https://openedx.io/api/lti_consumer/v1/public_keysets/...``, the
+   Issuer is ``https://openedx.io``. An Authoring URL such as
+   ``https://apps.openedx.io/authoring/...`` is not the Issuer.
+
 External tools may use different names for these values and may not require
 all of them. Follow the tool vendor's instructions.
 
@@ -293,7 +304,7 @@ Publish and Test
 +--------------------+------------------------+----------+----------------+
 | Review Date        | Working Group Reviewer | Release  | Test situation |
 +--------------------+------------------------+----------+----------------+
-| 2026-06-25         | Aamir Ayub             | Verawood | Pass           |
+| 2026-07-13         | Aamir Ayub             | Verawood | Pass           |
 +--------------------+------------------------+----------+----------------+
 | 2025-12-05         | LTI WG                 | Ulmo     | Pass           |
 +--------------------+------------------------+----------+----------------+
diff --git a/source/educators/index.rst b/source/educators/index.rst
@@ -36,29 +36,6 @@ Open edX Educators
 
          See All
 
-   .. grid-item-card:: Learner Engagement & Communication
-      :class-card: sd-shadow-md sd-p-2
-      :class-footer: sd-border-0
-
-      .. image:: /_images/educators_homepage/engagement_communication_undraw.png
-         :alt: Two character communicating via text
-         :height: 150px
-         :align: center
-         :target: navigation/learner_engagement_communication.html
-
-      | :ref:`Course Discussions`
-      | :ref:`Bulk Emails`
-      | :ref:`Course Updates`
-
-
-      .. button-ref:: navigation/learner_engagement_communication
-         :color: primary
-         :outline:
-         :expand:
-
-         See All
-
-
    .. grid-item-card:: Content Creation & Management
       :class-card: sd-shadow-md sd-p-2
       :class-footer: sd-border-0
@@ -105,29 +82,6 @@ Open edX Educators
 
          See All
 
-   .. grid-item-card:: Data & Analytics
-      :class-card: sd-shadow-md sd-p-2
-      :class-footer: sd-border-0
-
-      .. image:: /_images/educators_homepage/data_analytics_undraw.png
-         :alt: A chart of abstract user scores
-         :height: 150px
-         :align: center
-         :target: navigation/data_analytics.html
-
-      | :ref:`View Course Enrollments`
-      | :ref:`View Learner Data`
-      | :ref:`View Learner Grades`
-      | :ref:`View Answer Data`
-      | :ref:`View Certificate Data`
-
-      .. button-ref:: navigation/data_analytics
-         :color: primary
-         :outline:
-         :expand:
-
-         See All
-
    .. grid-item-card:: Accessibility
       :class-card: sd-shadow-md sd-p-2
       :class-footer: sd-border-0
@@ -172,6 +126,71 @@ Open edX Educators
 
          See All
 
+   .. grid-item-card:: Learning Tools Interoperability (LTI)
+      :class-card: sd-shadow-md sd-p-2
+      :class-footer: sd-border-0
+
+      .. image:: /_images/educators_homepage/lti_clipart.png
+         :alt: LTI: Learning Tools Interoperability
+         :height: 150px
+         :align: center
+         :target: navigation/lti.html
+
+      | :ref:`Add LTI Tools to Course Content`
+      | :ref:`Add LTI Tools to Course Navigation`
+      | :ref:`Use Open edX Content in Another LMS with LTI`
+
+      .. button-ref:: navigation/lti
+         :color: primary
+         :outline:
+         :expand:
+
+         See All
+
+   .. grid-item-card:: Learner Engagement & Communication
+      :class-card: sd-shadow-md sd-p-2
+      :class-footer: sd-border-0
+
+      .. image:: /_images/educators_homepage/engagement_communication_undraw.png
+         :alt: Two character communicating via text
+         :height: 150px
+         :align: center
+         :target: navigation/learner_engagement_communication.html
+
+      | :ref:`Course Discussions`
+      | :ref:`Bulk Emails`
+      | :ref:`Course Updates`
+
+      .. button-ref:: navigation/learner_engagement_communication
+         :color: primary
+         :outline:
+         :expand:
+
+         See All
+
+   .. grid-item-card:: Data & Analytics
+      :class-card: sd-shadow-md sd-p-2
+      :class-footer: sd-border-0
+
+      .. image:: /_images/educators_homepage/data_analytics_undraw.png
+         :alt: A chart of abstract user scores
+         :height: 150px
+         :align: center
+         :target: navigation/data_analytics.html
+
+      | :ref:`View Course Enrollments`
+      | :ref:`View Learner Data`
+      | :ref:`View Learner Grades`
+      | :ref:`View Answer Data`
+      | :ref:`View Certificate Data`
+
+      .. button-ref:: navigation/data_analytics
+         :color: primary
+         :outline:
+         :expand:
+
+         See All
+
    .. grid-item-card:: OLX (Open Learning XML)
       :class-card: sd-shadow-md sd-p-2
       :class-footer: sd-border-0

diff --git a/source/site_ops/how-tos/setup_lti_store.rst b/source/site_ops/how-tos/setup_lti_store.rst
@@ -75,6 +75,15 @@ A course-level override takes precedence over an organization-level override.
 An organization-level override takes precedence over the standard Waffle flag
 and its default value.
 
+
+.. note::
+
+   Most values in this section come from the LTI tool. After you save the
+   configuration, reference it in the LTI consumer XBlock and save the XBlock,
+   the XBlock will display a different set of values that you will need to
+   register with the external tool.
+
+
 .. _Create a Reusable LTI Configuration:
 
 Create a Reusable LTI Configuration
@@ -107,14 +116,24 @@ Create a Reusable LTI Configuration
      security policy paste in this field. You may use
      `IMS LTI Reference Implementation <https://lti-ri.imsglobal.org/keygen/index>`_.)
    * *Tool Public Key* OR *Tool Keyset URL*
-   * *Redirect URIs*, if required by the tool
+   * *Redirect URIs*. Enter every URI that the tool can use as a JSON list,
+     even when the redirect URI is the same as the launch URL.
    * (Optional) Enable *Names and Role Provisioning Services*
    * (Optional) Enable *Deep Linking*
    * (Optional) *Deep Linking Launch URL*. If Deep Linking is enabled,
      enter the URL provided by the tool. If the tool does not provide
      a separate URL, use the tool's launch URL.
    * (Optional) Set *Assignment and Grade Services* mode
 
+   .. important::
+
+      Do not leave *Redirect URIs* at its default value of ``[]``. Enter the
+      tool's redirect URIs explicitly. For example, if the tool uses
+      ``https://tool.example.com/launch`` as its launch URL, enter
+      ``["https://tool.example.com/launch"]``. Otherwise, the
+      launch can fail with ``The preflight response is not valid``.
+
+
    .. figure:: /_images/site_ops_how_tos/create_ltistore_config.png
       :alt: Django Admin form showing the LTI 1.1, LTI 1.3, and LTI Advantage
          fields for an external LTI configuration.