diff --git a/apps/as/src/entities/fnrs-cnsltn/model/fnrs-cnsltn-apply-payload-schema.ts b/apps/as/src/entities/fnrs-cnsltn/model/fnrs-cnsltn-apply-payload-schema.ts
index ee1041e17..14b728f8a 100644
--- a/apps/as/src/entities/fnrs-cnsltn/model/fnrs-cnsltn-apply-payload-schema.ts
+++ b/apps/as/src/entities/fnrs-cnsltn/model/fnrs-cnsltn-apply-payload-schema.ts
@@ -98,6 +98,7 @@ export const fnrsSharItemSchema = z.object({
 export const fnrsCnsltnApplySaveSchema = z.object({
   techReViewSaveCd: z.string().nullish(),
   rvwStpCd: z.string().nullish(),
+  branchSeCd: z.string().nullish(),
   fnrsCnsltnMng: fnrsCnsltnMngSaveSchema,
   bzScaleList: z.array(fnrsCnsltnBzScaleItemSchema).nullish(),
   bizCstList: z.array(fnrsCnsltnBizCstItemSchema).nullish(),
diff --git a/apps/as/src/pages/fnrs-cnsltn/lib/save-payload-utils.ts b/apps/as/src/pages/fnrs-cnsltn/lib/save-payload-utils.ts
index c4d7d5d88..24cfa548a 100644
--- a/apps/as/src/pages/fnrs-cnsltn/lib/save-payload-utils.ts
+++ b/apps/as/src/pages/fnrs-cnsltn/lib/save-payload-utils.ts
@@ -93,6 +93,7 @@ export function buildSupplementReqPayload(
   data: FnrsCnsltnMngDetResponseDto,
   payload: SplmntDmndDialogConfirmPayload,
   checklistFormState: ChecklistFormState,
+  branchSeCd?: string,
 ): FnrsCnsltnApplySaveRequestDto {
   const existingItems: FnrsCnsltnSplmntDmndItem[] = (data.splmntDmndList ?? []).map((item) =>
     toSplmntDmndSaveItem(item),
@@ -111,6 +112,7 @@ export function buildSupplementReqPayload(
   return fnrsCnsltnApplySaveSchema.parse({
     ...buildSavePayload(data, checklistFormState, "LOCAL", "SL"),
     splmntDmndList: [...existingItems, ...newItems],
+    branchSeCd,
   });
 }
 
diff --git a/apps/as/src/pages/fnrs-cnsltn/ui/components/floating-action-buttons.tsx b/apps/as/src/pages/fnrs-cnsltn/ui/components/floating-action-buttons.tsx
index 7d33cb820..4c5166a84 100644
--- a/apps/as/src/pages/fnrs-cnsltn/ui/components/floating-action-buttons.tsx
+++ b/apps/as/src/pages/fnrs-cnsltn/ui/components/floating-action-buttons.tsx
@@ -689,7 +689,8 @@ function FloatingActionButtons({
   async function handleDmndSplmntConfirm(payload: SplmntDmndDialogConfirmPayload) {
     setIsDmndSplmntDialogOpen(false);
     setActiveDialog(null);
-    const requestPayload = buildSupplementReqPayload(data, payload, checklistFormState);
+    const branchSeCd = userBranchSeCd ?? userPendingBranchSeCd;
+    const requestPayload = buildSupplementReqPayload(data, payload, checklistFormState, branchSeCd);
     await executeAction({
       action: FNRS_CNSLTN_VIEW_BUTTON_ACTION.dmndSplmnt,
       request: requestPayload,
@@ -713,7 +714,11 @@ function FloatingActionButtons({
 
   async function handleRvwRsltSplmntConfirm(selected: PwrkCnsltnCnsltnResponseDto[]) {
     setActiveDialog(null);
-    const requestPayload = buildRvwRsltSplmntReqPayload(data, selected, checklistFormState);
+    const branchSeCd = userBranchSeCd ?? userPendingBranchSeCd;
+    const requestPayload = {
+      ...buildRvwRsltSplmntReqPayload(data, selected, checklistFormState),
+      branchSeCd,
+    };
     await executeAction({
       action: FNRS_CNSLTN_VIEW_BUTTON_ACTION.dmndSplmnt,
       request: requestPayload,