diff --git a/classes/privacy/provider.php b/classes/privacy/provider.php
index 1b04603..c40b2cd 100644
--- a/classes/privacy/provider.php
+++ b/classes/privacy/provider.php
@@ -76,6 +76,33 @@ class provider implements   \core_privacy\local\metadata\provider,
              ],
             'privacy:metadata:user'
         );
+        $collection->add_database_table(
+            'local_treestudyplan_teachers',
+             [
+                'teacher_id' => 'privacy:metadata:teachers:user_id',
+                'studyplan_id' => 'privacy:metadata:teachers:studyplan_id',
+             ],
+            'privacy:metadata:teachers'
+        );
+        $collection->add_database_table(
+            'local_treestudyplan_lineuser',
+             [
+                'user_id' => 'privacy:metadata:lineuser:user_id',
+                'line_id' => 'privacy:metadata:lineuser:line_id',
+                'timeenrolled' => 'privacy:metadata:lineuser:timeenrolled',
+                'enrolled' => 'privacy:metadata:lineuser:enrolledby',
+                'enrolledby' => 'privacy:metadata:lineuser:enrolledby',
+             ],
+            'privacy:metadata:lineuser'
+        );
+        $collection->add_database_table(
+            'local_treestudyplan_coach',
+             [
+               'user_id' => 'privacy:metadata:coach:user_id',
+                'studyplan_id' => 'privacy:metadata:coach:studyplan_id',
+             ],
+            'privacy:metadata:coach'
+        );
         return $collection;
     }
 
diff --git a/lang/en/local_treestudyplan.php b/lang/en/local_treestudyplan.php
index 0acd3ff..3ab8ed9 100644
--- a/lang/en/local_treestudyplan.php
+++ b/lang/en/local_treestudyplan.php
@@ -34,6 +34,21 @@ $string["privacy:metadata:user"] = 'Links between individual users and study pla
 $string["privacy:metadata:user:user_id"] = 'The UserID of the user';
 $string["privacy:metadata:user:studyplan_id"] = 'The study plan';
 
+$string["privacy:metadata:teachers"] = 'Cached table for linking teachers to study plans';
+$string["privacy:metadata:teachers:teacher_id"] = 'The UserID of the teacher';
+$string["privacy:metadata:teachers:studyplan_id"] = 'The study plan in which the teacher teaches at least one course';
+
+$string["privacy:metadata:lineuser"] = 'Registers a user as enrolled in a line within a studyplan';
+$string["privacy:metadata:lineuser:user_id"] = 'The UserID of the user';
+$string["privacy:metadata:lineuser:line_id"] = 'The study line the user is enrolled in (or not)';
+$string["privacy:metadata:lineuser:timeenrolled"] = 'The moment of enrolment';
+$string["privacy:metadata:lineuser:enrolled"] = 'Wether th user is enrolled or not';
+$string["privacy:metadata:lineuser:enrolledby"] = 'Optional userid of another user who enrolled the user in this line';
+
+$string["privacy:metadata:coach"] = 'Links a user as coach to a study plan';
+$string["privacy:metadata:coach:user_id"] = 'The UserID of the user';
+$string["privacy:metadata:coach:studyplan_id"] = 'The study plan';
+
 $string["treestudyplan:editstudyplan"] = "Manage study plans";
 $string["treestudyplan:configure"] = "Configure study plans";
 $string["treestudyplan:viewuserreports"] = "View study plan of others";
diff --git a/lang/nl/local_treestudyplan.php b/lang/nl/local_treestudyplan.php
index 70217cc..4b91060 100644
--- a/lang/nl/local_treestudyplan.php
+++ b/lang/nl/local_treestudyplan.php
@@ -34,6 +34,21 @@ $string["privacy:metadata:user"] = 'Persoonlijke koppelingen tussen gebruiker en
 $string["privacy:metadata:user:user_id"] = 'Gebruikers-ID';
 $string["privacy:metadata:user:studyplan_id"] = 'ID van gekoppeld studieplan';
 
+$string["privacy:metadata:teachers"] = 'Cachetabel tussen gebruikers en studieplannen waarin ze als leraar aan cursussen zijn gekoppeld ';
+$string["privacy:metadata:teachers:teacher_id"] = 'Gebruikers-ID van de leraar';
+$string["privacy:metadata:teachers:studyplan_id"] = 'Het studieplan waarin de leraar minimaal één cursus geeft.';
+
+$string["privacy:metadata:lineuser"] = 'Registreert een gebruiker als ingeschreven in een leerlijn';
+$string["privacy:metadata:lineuser:user_id"] = 'Gebruikers-ID';
+$string["privacy:metadata:lineuser:line_id"] = 'ID van de leerlijn';
+$string["privacy:metadata:lineuser:timeenrolled"] = 'Moment van inschrijven';
+$string["privacy:metadata:lineuser:enrolled"] = 'Of de gebruiker is ingeschreven of niet';
+$string["privacy:metadata:lineuser:enrolledby"] = 'Optioneel: ID van een andere gebruiker die de inschrijving heeft gedaan.';
+
+$string["privacy:metadata:coach"] = 'Koppelt een gebruiker als coach aan een studieplan';
+$string["privacy:metadata:coach:user_id"] = 'Gebruikers-ID';
+$string["privacy:metadata:coach:studyplan_id"] = 'ID van gekoppeld studieplan';
+
 $string["treestudyplan:editstudyplan"] = "Studieplannen beheren";
 $string["treestudyplan:configure"] = "Studieplannen configureren";
 $string["treestudyplan:viewuserreports"] = "Studieplannen van anderen bekijken";