diff --git a/db/install.xml b/db/install.xml
index 05f1a4a..88fcf27 100644
--- a/db/install.xml
+++ b/db/install.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<XMLDB PATH="local/treestudyplan/db" VERSION="20230720" COMMENT="XMLDB file for Moodle local/treestudyplan"
+<XMLDB PATH="local/treestudyplan/db" VERSION="20230803" COMMENT="XMLDB file for Moodle local/treestudyplan"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:noNamespaceSchemaLocation="../../../lib/xmldb/xmldb.xsd"
 >
@@ -85,6 +85,7 @@
         <FIELD NAME="badge_id" TYPE="int" LENGTH="18" NOTNULL="false" SEQUENCE="false"/>
         <FIELD NAME="course_id" TYPE="int" LENGTH="18" NOTNULL="false" SEQUENCE="false"/>
         <FIELD NAME="continuation_id" TYPE="int" LENGTH="18" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="span" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="1" SEQUENCE="false"/>
       </FIELDS>
       <KEYS>
         <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
diff --git a/db/upgrade.php b/db/upgrade.php
index 01d2f26..d29d251 100644
--- a/db/upgrade.php
+++ b/db/upgrade.php
@@ -418,6 +418,20 @@ function xmldb_local_treestudyplan_upgrade($oldversion) {
         upgrade_plugin_savepoint(true, 2023072000, 'local', 'treestudyplan');
     }
 
+    if ($oldversion < 2023080300) {
+
+        // Define field span to be added to local_treestudyplan_item.
+        $table = new xmldb_table('local_treestudyplan_item');
+        $field = new xmldb_field('span', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '1', 'continuation_id');
+
+        // Conditionally launch add field span.
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+        }
+
+        // Treestudyplan savepoint reached.
+        upgrade_plugin_savepoint(true, 2023080300, 'local', 'treestudyplan');
+    }
 
 
     return true;
diff --git a/version.php b/version.php
index 24523cb..3b18440 100644
--- a/version.php
+++ b/version.php
@@ -1,6 +1,6 @@
 <?php
 $plugin->component = 'local_treestudyplan';  // Recommended since 2.0.2 (MDL-26035). Required since 3.0 (MDL-48494)
-$plugin->version = 2023072801;  // YYYYMMDDHH (year, month, day, iteration)
+$plugin->version = 2023080300;  // YYYYMMDDHH (year, month, day, iteration)
 $plugin->requires = 2021051700; // YYYYMMDDHH (This is the release version for Moodle 3.11)
 
 $plugin->dependencies = [