diff --git a/mod/lti/classes/local/ltiservice/service_base.php b/mod/lti/classes/local/ltiservice/service_base.php
index 5ad7a570df4..d95aa53b717 100644
--- a/mod/lti/classes/local/ltiservice/service_base.php
+++ b/mod/lti/classes/local/ltiservice/service_base.php
@@ -226,6 +226,42 @@ abstract class service_base {
 
     }
 
+    /**
+     * Called when a new LTI Instance is added.
+     *
+     * @param object $lti LTI Instance.
+     */
+    public function instance_added(object $lti): void {
+
+    }
+
+    /**
+     * Called when a new LTI Instance is updated.
+     *
+     * @param object $lti LTI Instance.
+     */
+    public function instance_updated(object $lti): void {
+
+    }
+
+    /**
+     * Called when a new LTI Instance is deleted.
+     *
+     * @param int $id LTI Instance.
+     */
+    public function instance_deleted(int $id): void {
+
+    }
+
+    /**
+     * Set the form data when displaying the LTI Instance form.
+     *
+     * @param object $defaultvalues Default form values.
+     */
+    public function set_instance_form_values(object $defaultvalues): void {
+
+    }
+
     /**
      * Return an array with the names of the parameters that the service will be saving in the configuration
      *
@@ -471,5 +507,4 @@ abstract class service_base {
         return $ok;
 
     }
-
-}
+}
\ No newline at end of file
diff --git a/mod/lti/lib.php b/mod/lti/lib.php
index 107cd39b7f3..9c629a2873a 100644
--- a/mod/lti/lib.php
+++ b/mod/lti/lib.php
@@ -47,7 +47,6 @@
  */
 
 defined('MOODLE_INTERNAL') || die;
-use ltiservice_gradebookservices\local\service\gradebookservices;
 
 /**
  * List of features supported in URL module
@@ -119,7 +118,10 @@ function lti_add_instance($lti, $mform) {
         lti_grade_item_update($lti);
     }
 
-    gradebookservices::update_coupled_gradebookservices($lti, $lti->lineitemresourceid ?? '', $lti->lineitemtag ?? '');
+    $services = lti_get_services();
+    foreach ($services as $service) {
+        $service->instance_added( $lti );
+    }
 
     $completiontimeexpected = !empty($lti->completionexpected) ? $lti->completionexpected : null;
     \core_completion\api::update_completion_date_event($lti->coursemodule, 'lti', $lti->id, $completiontimeexpected);
@@ -168,7 +170,10 @@ function lti_update_instance($lti, $mform) {
         $lti->typeid = $lti->urlmatchedtypeid;
     }
 
-    gradebookservices::update_coupled_gradebookservices($lti, $lti->lineitemresourceid, $lti->lineitemtag);
+    $services = lti_get_services();
+    foreach ($services as $service) {
+        $service->instance_updated( $lti );
+    }
 
     $completiontimeexpected = !empty($lti->completionexpected) ? $lti->completionexpected : null;
     \core_completion\api::update_completion_date_event($lti->coursemodule, 'lti', $lti->id, $completiontimeexpected);
@@ -185,7 +190,8 @@ function lti_update_instance($lti, $mform) {
  * @return boolean Success/Failure
  **/
 function lti_delete_instance($id) {
-    global $DB;
+    global $DB, $CFG;
+    require_once($CFG->dirroot.'/mod/lti/locallib.php');
 
     if (! $basiclti = $DB->get_record("lti", array("id" => $id))) {
         return false;
@@ -206,7 +212,15 @@ function lti_delete_instance($id) {
     \core_completion\api::update_completion_date_event($cm->id, 'lti', $id, null);
 
     // We must delete the module record after we delete the grade item.
-    return $DB->delete_records("lti", array("id" => $basiclti->id));
+    if ($DB->delete_records("lti", array("id" => $basiclti->id)) ) {
+        $services = lti_get_services();
+        foreach ($services as $service) {
+            $service->instance_deleted( $id );
+        }
+        return true;
+    }
+    return false;
+
 }
 
 /**
diff --git a/mod/lti/mod_form.php b/mod/lti/mod_form.php
index b79e889e624..72fd32829b0 100644
--- a/mod/lti/mod_form.php
+++ b/mod/lti/mod_form.php
@@ -50,7 +50,6 @@ defined('MOODLE_INTERNAL') || die;
 
 require_once($CFG->dirroot.'/course/moodleform_mod.php');
 require_once($CFG->dirroot.'/mod/lti/locallib.php');
-use ltiservice_gradebookservices\local\service\gradebookservices;
 
 class mod_lti_mod_form extends moodleform_mod {
 
@@ -339,21 +338,17 @@ class mod_lti_mod_form extends moodleform_mod {
     }
 
     /**
-     * Sets the current values for resource and tag in case of update.
+     * Sets the current values handled by services in case of update.
      *
      * @param object $defaultvalues default values to populate the form with.
      */
     public function set_data($defaultvalues) {
-        $defaultvalues->lineitemresourceid = '';
-        $defaultvalues->lineitemtag = '';
-        if (is_object($defaultvalues) && $defaultvalues->instance) {
-            $gbs = gradebookservices::find_ltiservice_gradebookservice_for_lti($defaultvalues->instance);
-            if ($gbs) {
-                $defaultvalues->lineitemresourceid = $gbs->resourceid;
-                $defaultvalues->lineitemtag = $gbs->tag;
+        $services = lti_get_services();
+        if (is_object($defaultvalues)) {
+            foreach ($services as $service) {
+                $service->set_instance_form_values( $defaultvalues );
             }
         }
-
         parent::set_data($defaultvalues);
     }
 }
diff --git a/mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php b/mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php
index 136278b1d98..a11ac459465 100644
--- a/mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php
+++ b/mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php
@@ -649,6 +649,41 @@ class gradebookservices extends service_base {
         }
     }
 
+    /**
+     * Called when a new LTI Instance is added.
+     *
+     * @param object $lti LTI Instance.
+     */
+    public function instance_added(object $lti): void {
+        self::update_coupled_gradebookservices($lti, $lti->lineitemresourceid ?? '', $lti->lineitemtag ?? '');
+    }
+
+    /**
+     * Called when a new LTI Instance is updated.
+     *
+     * @param object $lti LTI Instance.
+     */
+    public function instance_updated(object $lti): void {
+        self::update_coupled_gradebookservices($lti, $lti->lineitemresourceid ?? '', $lti->lineitemtag ?? '');
+    }
+
+    /**
+     * Set the form data when displaying the LTI Instance form.
+     *
+     * @param object $defaultvalues Default form values.
+     */
+    public function set_instance_form_values(object $defaultvalues): void {
+        $defaultvalues->lineitemresourceid = '';
+        $defaultvalues->lineitemtag = '';
+        if (is_object($defaultvalues) && $defaultvalues->instance) {
+            $gbs = self::find_ltiservice_gradebookservice_for_lti($defaultvalues->instance);
+            if ($gbs) {
+                $defaultvalues->lineitemresourceid = $gbs->resourceid;
+                $defaultvalues->lineitemtag = $gbs->tag;
+            }
+        }
+    }
+
     /**
      * Deletes orphaned rows from the 'ltiservice_gradebookservices' table.
      *