diff --git a/migrations/Version20230402170923.php b/migrations/Version20230402170923.php
new file mode 100644
index 00000000..1a05fd74
--- /dev/null
+++ b/migrations/Version20230402170923.php
@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+/**
+ * Auto-generated Migration: Please modify to your needs!
+ */
+final class Version20230402170923 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return '';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE part_lots ADD id_owner INT DEFAULT NULL');
+        $this->addSql('ALTER TABLE part_lots ADD CONSTRAINT FK_EBC8F94321E5A74C FOREIGN KEY (id_owner) REFERENCES `users` (id) ON DELETE SET NULL');
+        $this->addSql('CREATE INDEX IDX_EBC8F94321E5A74C ON part_lots (id_owner)');
+        $this->addSql('ALTER TABLE projects ADD CONSTRAINT FK_5C93B3A4727ACA70 FOREIGN KEY (parent_id) REFERENCES projects (id)');
+        $this->addSql('ALTER TABLE storelocations ADD id_owner INT DEFAULT NULL, ADD part_owner_must_match TINYINT(1) NOT NULL');
+        $this->addSql('ALTER TABLE storelocations ADD CONSTRAINT FK_751702021E5A74C FOREIGN KEY (id_owner) REFERENCES `users` (id) ON DELETE SET NULL');
+        $this->addSql('CREATE INDEX IDX_751702021E5A74C ON storelocations (id_owner)');
+        $this->addSql('ALTER TABLE users ADD about_me LONGTEXT DEFAULT \'\' NOT NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE log CHANGE level level TINYINT(1) NOT NULL');
+        $this->addSql('ALTER TABLE part_lots DROP FOREIGN KEY FK_EBC8F94321E5A74C');
+        $this->addSql('DROP INDEX IDX_EBC8F94321E5A74C ON part_lots');
+        $this->addSql('ALTER TABLE part_lots DROP id_owner');
+        $this->addSql('ALTER TABLE projects DROP FOREIGN KEY FK_5C93B3A4727ACA70');
+        $this->addSql('ALTER TABLE `storelocations` DROP FOREIGN KEY FK_751702021E5A74C');
+        $this->addSql('DROP INDEX IDX_751702021E5A74C ON `storelocations`');
+        $this->addSql('ALTER TABLE `storelocations` DROP id_owner, DROP part_owner_must_match');
+        $this->addSql('ALTER TABLE `users` DROP about_me');
+    }
+}
diff --git a/src/Entity/Parts/PartLot.php b/src/Entity/Parts/PartLot.php
index 40db1fc2..f30434ab 100644
--- a/src/Entity/Parts/PartLot.php
+++ b/src/Entity/Parts/PartLot.php
@@ -26,6 +26,7 @@ use App\Entity\Base\AbstractDBElement;
 use App\Entity\Base\TimestampTrait;
 use App\Entity\Contracts\NamedElementInterface;
 use App\Entity\Contracts\TimeStampableInterface;
+use App\Entity\UserSystem\User;
 use App\Validator\Constraints\Selectable;
 use App\Validator\Constraints\ValidPartLot;
 use DateTime;
@@ -111,6 +112,13 @@ class PartLot extends AbstractDBElement implements TimeStampableInterface, Named
      */
     protected Part $part;
 
+    /**
+     * @var User|null The owner of this part lot
+     * @ORM\ManyToOne(targetEntity="App\Entity\UserSystem\User")
+     * @ORM\JoinColumn(name="id_owner", referencedColumnName="id", nullable=true, onDelete="SET NULL")
+     */
+    protected ?User $owner;
+
     public function __clone()
     {
         if ($this->id) {
@@ -304,6 +312,28 @@ class PartLot extends AbstractDBElement implements TimeStampableInterface, Named
         return $this;
     }
 
+    /**
+     * Returns the owner of this part lot.
+     * @return User|null
+     */
+    public function getOwner(): ?User
+    {
+        return $this->owner;
+    }
+
+    /**
+     * Sets the owner of this part lot.
+     * @param  User|null  $owner
+     * @return PartLot
+     */
+    public function setOwner(?User $owner): PartLot
+    {
+        $this->owner = $owner;
+        return $this;
+    }
+
+
+
     public function getName(): string
     {
         return $this->description;
diff --git a/src/Entity/Parts/Storelocation.php b/src/Entity/Parts/Storelocation.php
index 52f84f2d..eee159bf 100644
--- a/src/Entity/Parts/Storelocation.php
+++ b/src/Entity/Parts/Storelocation.php
@@ -25,6 +25,7 @@ namespace App\Entity\Parts;
 use App\Entity\Attachments\StorelocationAttachment;
 use App\Entity\Base\AbstractPartsContainingDBElement;
 use App\Entity\Parameters\StorelocationParameter;
+use App\Entity\UserSystem\User;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Serializer\Annotation\Groups;
@@ -89,6 +90,19 @@ class Storelocation extends AbstractPartsContainingDBElement
      */
     protected bool $limit_to_existing_parts = false;
 
+    /**
+     * @var User|null The owner of this storage location
+     * @ORM\ManyToOne(targetEntity="App\Entity\UserSystem\User")
+     * @ORM\JoinColumn(name="id_owner", referencedColumnName="id", nullable=true, onDelete="SET NULL")
+     */
+    protected ?User $owner;
+
+    /**
+     * @var bool If this is set to true, only parts lots, which are owned by the same user as the store location are allowed to be stored here.
+     * @ORM\Column(type="boolean")
+     */
+    protected bool $part_owner_must_match = false;
+
     /**
      * @var Collection<int, StorelocationAttachment>
      * @ORM\OneToMany(targetEntity="App\Entity\Attachments\StorelocationAttachment", mappedBy="element", cascade={"persist", "remove"}, orphanRemoval=true)
@@ -166,6 +180,49 @@ class Storelocation extends AbstractPartsContainingDBElement
         return $this;
     }
 
+    /**
+     * Returns the owner of this storage location
+     * @return User|null
+     */
+    public function getOwner(): ?User
+    {
+        return $this->owner;
+    }
+
+    /**
+     * Sets the owner of this storage location
+     * @param  User|null  $owner
+     * @return Storelocation
+     */
+    public function setOwner(?User $owner): Storelocation
+    {
+        $this->owner = $owner;
+        return $this;
+    }
+
+    /**
+     * If this is set to true, only parts lots, which are owned by the same user as the store location are allowed to be stored here.
+     * @return bool
+     */
+    public function isPartOwnerMustMatch(): bool
+    {
+        return $this->part_owner_must_match;
+    }
+
+    /**
+     * If this is set to true, only parts lots, which are owned by the same user as the store location are allowed to be stored here.
+     * @param  bool  $part_owner_must_match
+     * @return Storelocation
+     */
+    public function setPartOwnerMustMatch(bool $part_owner_must_match): Storelocation
+    {
+        $this->part_owner_must_match = $part_owner_must_match;
+        return $this;
+    }
+
+
+
+
     /********************************************************************************
      *
      *   Setters
diff --git a/src/Entity/UserSystem/User.php b/src/Entity/UserSystem/User.php
index fd8c9054..375030a5 100644
--- a/src/Entity/UserSystem/User.php
+++ b/src/Entity/UserSystem/User.php
@@ -103,6 +103,13 @@ class User extends AttachmentContainingDBElement implements UserInterface, HasPe
      */
     protected string $instock_comment_w = '';
 
+    /**
+     * @var string A self-description of the user
+     * @ORM\Column(type="text", options={"default": ""})
+     * @Groups({"full", "import"})
+     */
+    protected string $aboutMe = '';
+
     /** @var int The version of the trusted device cookie. Used to invalidate all trusted device cookies at once.
      *  @ORM\Column(type="integer")
      */