diff --git a/apps/as/src/entities/elapr/lib/approval-request-utils.ts b/apps/as/src/entities/elapr/lib/approval-request-utils.ts
index 7886e0ad2..d196b0ea4 100644
--- a/apps/as/src/entities/elapr/lib/approval-request-utils.ts
+++ b/apps/as/src/entities/elapr/lib/approval-request-utils.ts
@@ -6,8 +6,11 @@ export function hasCurrentUserPendingApprovalRequest(
 ): boolean {
   if (!currentUserUuid) return false;
 
+  const normalizedUserUuid = currentUserUuid.toLowerCase();
   return list.some(
-    (row) => row.aprvrUuid === currentUserUuid && row.atrzPrgrsSttsComCd === "ATRZ_PRGRS_002",
+    (row) =>
+      row.aprvrUuid?.toLowerCase() === normalizedUserUuid &&
+      row.atrzPrgrsSttsComCd === "ATRZ_PRGRS_002",
   );
 }
 
@@ -17,7 +20,10 @@ export function findCurrentUserPendingApprovalRequest(
 ): ElaprDocPrgrsResponseDto | undefined {
   if (!currentUserUuid) return undefined;
 
+  const normalizedUserUuid = currentUserUuid.toLowerCase();
   return list?.find(
-    (row) => row.aprvrUuid === currentUserUuid && row.atrzPrgrsSttsComCd === "ATRZ_PRGRS_002",
+    (row) =>
+      row.aprvrUuid?.toLowerCase() === normalizedUserUuid &&
+      row.atrzPrgrsSttsComCd === "ATRZ_PRGRS_002",
   );
 }
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 cb42a6523..0e9c87181 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
@@ -201,13 +201,14 @@ function FloatingActionButtons({
     userInfo?.userUnqId,
   );
   const currentUserPrgrsRow = elaprPrgrsForPending.find(
-    (row) => row.aprvrUuid === userInfo?.userUnqId,
+    (row) => row.aprvrUuid?.toLowerCase() === userInfo?.userUnqId?.toLowerCase(),
   );
   const userPendingPrgrs = elaprPrgrsForPending.find(
     (row) =>
-      row.aprvrUuid === userInfo?.userUnqId &&
+      row.aprvrUuid?.toLowerCase() === userInfo?.userUnqId?.toLowerCase() &&
       row.atrzPrgrsSttsComCd === "ATRZ_PRGRS_002",
   );
+  const userBranchId = userPendingPrgrs?.branchId ?? currentUserPrgrsRow?.branchId;
   const userBranchSeCd = (userPendingPrgrs?.branchSeCd ?? currentUserPrgrsRow?.branchSeCd) as
     | "SP"
     | "SF"
@@ -255,7 +256,10 @@ function FloatingActionButtons({
     if (!isForkJoin || !userBranchSeCd) return undefined;
 
     // 1. elaprBranchList API 응답에서 사용자 브랜치 상태 확인
-    const matchedBranch = elaprBranchList.find((b) => b.branchSeCd === userBranchSeCd);
+    // 현재 결재선(2차 차수 등)의 고유 branchId로 우선 매칭하고, 없으면 findLast로 최신 차수 브랜치 매칭
+    const matchedBranch = userBranchId
+      ? elaprBranchList.find((b) => b.branchId === userBranchId)
+      : elaprBranchList.findLast((b) => b.branchSeCd === userBranchSeCd);
     if (matchedBranch?.branchSttsCd) {
       return matchedBranch.branchSttsCd;
     }
@@ -281,7 +285,15 @@ function FloatingActionButtons({
     }
 
     return undefined;
-  }, [elaprBranchList, elaprPrgrsForPending, isForkJoin, prgrsSttsComCd, supplementDmndBranch, userBranchSeCd]);
+  }, [
+    elaprBranchList,
+    elaprPrgrsForPending,
+    isForkJoin,
+    prgrsSttsComCd,
+    supplementDmndBranch,
+    userBranchId,
+    userBranchSeCd,
+  ]);
 
   const isBranchInProgress =
     isForkJoin && userBranchSttsCd === "IN_PROGRESS" && dtlInstCd === "ROLE_USER01";