diff --git a/src/Bundle/ChillTaskBundle/Entity/AbstractTask.php b/src/Bundle/ChillTaskBundle/Entity/AbstractTask.php
index 73e98c0dd..649de0422 100644
--- a/src/Bundle/ChillTaskBundle/Entity/AbstractTask.php
+++ b/src/Bundle/ChillTaskBundle/Entity/AbstractTask.php
@@ -10,6 +10,7 @@ use Chill\MainBundle\Entity\HasScopeInterface;
 use Chill\MainBundle\Entity\HasCenterInterface;
 use Symfony\Component\Validator\Constraints as Assert;
 use Chill\MainBundle\Validator\Constraints\Entity\UserCircleConsistency;
+use Chill\PersonBundle\Entity\AccompanyingPeriod;
 
 /**
  * AbstractTask
@@ -67,9 +68,16 @@ abstract class AbstractTask implements HasScopeInterface, HasCenterInterface
      * @ORM\ManyToOne(
      *  targetEntity="\Chill\PersonBundle\Entity\Person"
      * )
-     * @Assert\NotNull()
      */
     private $person;
+
+
+    /**
+     * @var AccompanyingPeriod
+     * @ORM\ManyToOne(targetEntity="\Chill\PersonBundle\Entity\AccompanyingPeriod")
+     */
+
+    private $course;
     
     /**
      *
@@ -202,6 +210,11 @@ abstract class AbstractTask implements HasScopeInterface, HasCenterInterface
         return $this->person;
     }
 
+    public function getCourse(): ?AccompanyingPeriod
+    {
+        return $this->course;
+    }
+
     public function getCircle(): ?Scope
     {
         return $this->circle;
@@ -219,6 +232,12 @@ abstract class AbstractTask implements HasScopeInterface, HasCenterInterface
         return $this;
     }
 
+    public function setCourse(AccompanyingPeriod $course)
+    {
+        $this->course = $course;
+        return $this;
+    }
+
     public function setCircle(Scope $circle)
     {
         $this->circle = $circle;
diff --git a/src/Bundle/ChillTaskBundle/migrations/Version20210909153533.php b/src/Bundle/ChillTaskBundle/migrations/Version20210909153533.php
new file mode 100644
index 000000000..e2f59621b
--- /dev/null
+++ b/src/Bundle/ChillTaskBundle/migrations/Version20210909153533.php
@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Chill\TaskBundle\Migrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20210909153533 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+       
+        $this->addSql('ALTER TABLE chill_task.recurring_task ADD course_id INT DEFAULT NULL');
+        $this->addSql('ALTER TABLE chill_task.recurring_task ADD CONSTRAINT FK_9F663B90591CC992 FOREIGN KEY (course_id) REFERENCES chill_person_accompanying_period (id) NOT DEFERRABLE INITIALLY IMMEDIATE');
+        $this->addSql('CREATE INDEX IDX_9F663B90591CC992 ON chill_task.recurring_task (course_id)');
+        $this->addSql('ALTER TABLE chill_task.single_task ADD course_id INT DEFAULT NULL');
+        $this->addSql('ALTER TABLE chill_task.single_task ADD CONSTRAINT FK_194CB3D8591CC992 FOREIGN KEY (course_id) REFERENCES chill_person_accompanying_period (id) NOT DEFERRABLE INITIALLY IMMEDIATE');
+        $this->addSql('CREATE INDEX IDX_194CB3D8591CC992 ON chill_task.single_task (course_id)');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE chill_task.recurring_task DROP CONSTRAINT FK_9F663B90591CC992');
+        $this->addSql('ALTER TABLE chill_task.recurring_task DROP course_id');
+        $this->addSql('ALTER TABLE chill_task.single_task DROP CONSTRAINT FK_194CB3D8591CC992');
+        $this->addSql('ALTER TABLE chill_task.single_task DROP course_id');
+    }
+}