diff --git a/backend/src/main/java/org/eclipse/tractusx/puris/backend/masterdata/domain/model/MaterialPartnerRelation.java b/backend/src/main/java/org/eclipse/tractusx/puris/backend/masterdata/domain/model/MaterialPartnerRelation.java
index f269abb2..978eaf1b 100644
--- a/backend/src/main/java/org/eclipse/tractusx/puris/backend/masterdata/domain/model/MaterialPartnerRelation.java
+++ b/backend/src/main/java/org/eclipse/tractusx/puris/backend/masterdata/domain/model/MaterialPartnerRelation.java
@@ -28,6 +28,14 @@
 import java.util.Objects;
 import java.util.UUID;
 
+/**
+ * <p>This class represents a relation between an instance of the {@link Material} Entity
+ * and one instance of the {@link Partner} Entity. For each pair of Material and Partner
+ * Entities there exists at most one MaterialPartnerRelation. </p>
+ * <p>This class stores, under which identifier (material number) the Partner knows
+ * this Material, and whether this Partner is a supplier or a customer of the Material.</p>
+ *
+ */
 @Entity
 @Getter
 @Setter