diff --git a/classes/local/course_category_manager.php b/classes/local/course_category_manager.php
index 465c556..3eee967 100644
--- a/classes/local/course_category_manager.php
+++ b/classes/local/course_category_manager.php
@@ -14,6 +14,7 @@ class course_category_manager {
      * @param string $username The username of the existing user.
      * @param string $role shortname of the role to assign to the user.
      * @param string|null $category_path The path of the category. If null or an empty string is passed, it initializes to "adler/{$username}".
+     * @return int The ID of the created category.
      * @throws dml_exception
      * @throws moodle_exception
      * @throws invalid_parameter_exception
diff --git a/classes/plugin_interface.php b/classes/plugin_interface.php
index 64f07ff..cfd7d2f 100644
--- a/classes/plugin_interface.php
+++ b/classes/plugin_interface.php
@@ -3,9 +3,12 @@
 namespace local_adler;
 
 use dml_exception;
+use invalid_parameter_exception;
+use local_adler\local\course_category_manager;
 use local_adler\local\exceptions\not_an_adler_section_exception;
 use local_adler\local\section\section;
 use local_adler\local\section\db as section_db;
+use moodle_exception;
 
 class plugin_interface {
     /** Check if section is completed
@@ -28,4 +31,18 @@ public static function is_section_completed(int $section_id, int $user_id): bool
     public static function get_section_name(int $section_id): string {
         return section_db::get_moodle_section($section_id)->name;
     }
+
+    /** Create a new course category and grant the user permission to create adler courses in it.
+     *
+     * @param string $username The username of the existing user.
+     * @param string $role shortname of the role to assign to the user.
+     * @param string|null $category_path The path of the category. If null or an empty string is passed, it initializes to "adler/{$username}".
+     * @return int The ID of the created category.
+     * @throws dml_exception
+     * @throws moodle_exception
+     * @throws invalid_parameter_exception
+     */
+    public static function create_category_user_can_create_courses_in(string $username, string $role, string|null $category_path = Null): int {
+        return course_category_manager::create_category_user_can_create_courses_in($username, $role, $category_path);
+    }
 }
\ No newline at end of file