diff --git a/backend/lombok.config b/backend/lombok.config
new file mode 100644
index 00000000..7a21e880
--- /dev/null
+++ b/backend/lombok.config
@@ -0,0 +1 @@
+lombok.addLombokGeneratedAnnotation = true
diff --git a/backend/src/main/java/de/bund/digitalservice/ris/adm_vwv/adapter/persistence/TestEntity.java b/backend/src/main/java/de/bund/digitalservice/ris/adm_vwv/adapter/persistence/TestEntity.java
new file mode 100644
index 00000000..4fb2f0f4
--- /dev/null
+++ b/backend/src/main/java/de/bund/digitalservice/ris/adm_vwv/adapter/persistence/TestEntity.java
@@ -0,0 +1,31 @@
+package de.bund.digitalservice.ris.adm_vwv.adapter.persistence;
+
+import jakarta.persistence.*;
+import lombok.Data;
+import org.apache.commons.lang3.StringUtils;
+
+import java.time.Year;
+import java.util.UUID;
+
+@Entity
+@Data
+@Table(name = "test_table")
+public class TestEntity {
+
+  @Id
+  @GeneratedValue
+  private UUID id;
+
+  /**
+   * The latest document number used. The complete string is persisted here, e.g. {@code KSNR2025000001}.
+   */
+  @Basic(optional = false)
+  private String latest;
+
+  @Basic(optional = false)
+  private Year year;
+
+  public Integer getLatestNumber() {
+    return Integer.parseInt(StringUtils.substringAfter(latest, "KSNR"));
+  }
+}