diff --git a/src/main/java/com/interplug/qcast/biz/master/dto/pcs/ApiPcsItemRequest.java b/src/main/java/com/interplug/qcast/biz/master/dto/pcs/ApiPcsItemRequest.java
index 3ec95b1d..dd9825b3 100644
--- a/src/main/java/com/interplug/qcast/biz/master/dto/pcs/ApiPcsItemRequest.java
+++ b/src/main/java/com/interplug/qcast/biz/master/dto/pcs/ApiPcsItemRequest.java
@@ -26,4 +26,8 @@ public class ApiPcsItemRequest {
 
   @Schema(description = "선택한병렬매수(적용병렬매수)", maxLength = 10)
   private Integer applyParalQty;
+
+  // 직렬병렬여부 추가 (2026-06-22)
+  @Schema(description = "직렬병렬여부", maxLength = 1)
+  private String pcsSerParallelYn;
 }
diff --git a/src/main/java/com/interplug/qcast/biz/master/dto/pcs/menualconf/ApiPcsMenualConfPcsItemRequest.java b/src/main/java/com/interplug/qcast/biz/master/dto/pcs/menualconf/ApiPcsMenualConfPcsItemRequest.java
index c2fd3ff4..702002ec 100644
--- a/src/main/java/com/interplug/qcast/biz/master/dto/pcs/menualconf/ApiPcsMenualConfPcsItemRequest.java
+++ b/src/main/java/com/interplug/qcast/biz/master/dto/pcs/menualconf/ApiPcsMenualConfPcsItemRequest.java
@@ -33,4 +33,8 @@ public class ApiPcsMenualConfPcsItemRequest {
 
   @Schema(description = "직렬매수 목록")
   private List<ApiPcsSerQtyDto> serQtyList;
+
+  // 직렬병렬여부 추가 (2026-06-22)
+  @Schema(description = "직렬병렬여부", maxLength = 1)
+  private String pcsSerParallelYn;
 }