diff --git a/apps/as/src/entities/elapr/index.ts b/apps/as/src/entities/elapr/index.ts
index 777245649..2210dfc17 100644
--- a/apps/as/src/entities/elapr/index.ts
+++ b/apps/as/src/entities/elapr/index.ts
@@ -41,6 +41,7 @@ export {
   validateAllRowsForSave,
   validateAplnRow,
   validateAtrzOrder,
+  validateUniqueAtrzAprvr,
   validateUniqueSeqNo,
 } from "./lib/apln-validators";
 export {
diff --git a/apps/as/src/entities/elapr/lib/apln-validators.ts b/apps/as/src/entities/elapr/lib/apln-validators.ts
index 8b75b4279..8ff1d997e 100644
--- a/apps/as/src/entities/elapr/lib/apln-validators.ts
+++ b/apps/as/src/entities/elapr/lib/apln-validators.ts
@@ -76,3 +76,16 @@ export function validateUniqueSeqNo(rows: ElaprAplnRow[]): string | null {
   }
   return null;
 }
+
+export function validateUniqueAtrzAprvr(rows: ElaprAplnRow[]): string | null {
+  const pairSet = new Set<string>();
+  for (const row of getVisibleRows(rows)) {
+    const atrz = row.atrzSeComCd?.trim();
+    const aprvr = row.aprvrUuid?.trim();
+    if (!atrz || !aprvr) continue;
+    const key = `${atrz}::${aprvr}`;
+    if (pairSet.has(key)) return "동일한 결재구분과 결재자가 중복됩니다.";
+    pairSet.add(key);
+  }
+  return null;
+}
diff --git a/apps/as/src/entities/elapr/ui/elapr-apln-picker-grid.tsx b/apps/as/src/entities/elapr/ui/elapr-apln-picker-grid.tsx
index c8c84e1c6..f5a065ff6 100644
--- a/apps/as/src/entities/elapr/ui/elapr-apln-picker-grid.tsx
+++ b/apps/as/src/entities/elapr/ui/elapr-apln-picker-grid.tsx
@@ -17,7 +17,7 @@ import {
 } from "@common/components";
 
 import { useElaprAplnPage } from "../api/queries";
-import { validateAplnRow } from "../lib/apln-validators";
+import { validateAplnRow, validateUniqueAtrzAprvr } from "../lib/apln-validators";
 import { useAplnRows } from "../lib/use-apln-rows";
 import { useDndSensors } from "../lib/use-dnd-sensors";
 import type { ElaprApln } from "../model/elapr-apln-interface";
@@ -110,6 +110,12 @@ function ElaprAplnPickerGrid({
       return;
     }
 
+    const duplicateError = validateUniqueAtrzAprvr(rows);
+    if (duplicateError) {
+      alert(duplicateError);
+      return;
+    }
+
     commitEdit(row.rowKey);
   }
 
diff --git a/apps/as/src/entities/elapr/ui/elapr-doc-prgrs-picker-dialog.tsx b/apps/as/src/entities/elapr/ui/elapr-doc-prgrs-picker-dialog.tsx
index 0d9b5161e..ec235ec5e 100644
--- a/apps/as/src/entities/elapr/ui/elapr-doc-prgrs-picker-dialog.tsx
+++ b/apps/as/src/entities/elapr/ui/elapr-doc-prgrs-picker-dialog.tsx
@@ -17,6 +17,7 @@ import {
   getVisibleRows,
   validateAllRowsForSave,
   validateAtrzOrder,
+  validateUniqueAtrzAprvr,
   validateUniqueSeqNo,
 } from "../lib/apln-validators";
 import { mapDocPrgrsToAplnRows } from "../lib/doc-prgrs-to-apln-rows";
@@ -90,6 +91,12 @@ function ElaprDocPrgrsPickerDialog({
       return;
     }
 
+    const atrzAprvrError = validateUniqueAtrzAprvr(aplnRows);
+    if (atrzAprvrError) {
+      alert(atrzAprvrError);
+      return;
+    }
+
     const visibleRows = getVisibleRows(aplnRows);
     onConfirm?.({ aplnRows: visibleRows });
 
diff --git a/apps/as/src/entities/elapr/ui/elapr-tmplt-picker-dialog.tsx b/apps/as/src/entities/elapr/ui/elapr-tmplt-picker-dialog.tsx
index aa70932e9..b61672ef8 100644
--- a/apps/as/src/entities/elapr/ui/elapr-tmplt-picker-dialog.tsx
+++ b/apps/as/src/entities/elapr/ui/elapr-tmplt-picker-dialog.tsx
@@ -17,6 +17,7 @@ import {
   getVisibleRows,
   validateAllRowsForSave,
   validateAtrzOrder,
+  validateUniqueAtrzAprvr,
   validateUniqueSeqNo,
 } from "../lib/apln-validators";
 import type { ElaprAplnRow } from "../model/elapr-apln-row-types";
@@ -106,6 +107,12 @@ function ElaprTmpltPickerDialog({
       return;
     }
 
+    const atrzAprvrError = validateUniqueAtrzAprvr(aplnRows);
+    if (atrzAprvrError) {
+      alert(atrzAprvrError);
+      return;
+    }
+
     const visibleRows = getVisibleRows(aplnRows);
 
     const payload: ElaprTmpltPickerConfirmPayload = {
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 709ae9012..75b2a1804 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
@@ -65,7 +65,7 @@ export const fnrsCnsltnSplmntDmndItemSchema = z.object({
   splmntArtclComCd: z.string().nullish(),
   splmntDmndCn: z.string().optional(),
   splmntDmndDt: z.string().optional(),
-  splmntDmndAtchFileGroupId: z.string().optional(),
+  splmntDmndAtchFileGroupId: z.string().nullish(),
   splmntCn: z.string().optional(),
   splmntPicNm: z.string().optional(),
   splmntCmptnDt: z.string().optional(),
diff --git a/apps/as/src/pages/fnrs-cnsltn/ui/fnrs-form-page.tsx b/apps/as/src/pages/fnrs-cnsltn/ui/fnrs-form-page.tsx
index 87a3dc4b0..cff36df8a 100644
--- a/apps/as/src/pages/fnrs-cnsltn/ui/fnrs-form-page.tsx
+++ b/apps/as/src/pages/fnrs-cnsltn/ui/fnrs-form-page.tsx
@@ -18,6 +18,7 @@ import {
   fnrsCnsltnMngService,
 } from "@/entities/fnrs-cnsltn";
 import { useFnrsSharSeMngTree } from "@/entities/fnrs-shar-se";
+import { findCompletedPwrkDraft, usePwrkCnsltnMngByUpDocNo } from "@/entities/pwrk-cnsltn-mng";
 import {
   AttachmentsFormSection,
   buildAcntgCostItems,
@@ -35,7 +36,10 @@ import {
 } from "@/widgets/pbadms-sprt";
 import { Button } from "@common/components";
 
-import { type FnrsCnsltnRegistFormData, fnrsCnsltnRegistSchema } from "../lib/fnrs-cnsltn-regist-schema";
+import {
+  type FnrsCnsltnRegistFormData,
+  fnrsCnsltnRegistSchema,
+} from "../lib/fnrs-cnsltn-regist-schema";
 import {
   buildFormPayload,
   getCreateDefaultValues,
@@ -68,6 +72,12 @@ function FnrsFormPage({ mode, initialData, createDefaults }: FnrsFormPageProps)
   const isSplmntPrgrsStts = initialData?.detDto?.prgrsSttsComCd === "SL";
   const fnrsCnsltnDocNo = initialData?.detDto?.fnrsCnsltnDocNo;
 
+  const { data: pwrkCnsltnData } = usePwrkCnsltnMngByUpDocNo(
+    fnrsCnsltnDocNo,
+    isSplmntPrgrsStts && Boolean(fnrsCnsltnDocNo),
+  );
+  const hasCompletedDraft = Boolean(findCompletedPwrkDraft(pwrkCnsltnData));
+
   const { data: masterSharTree = [] } = useFnrsSharSeMngTree();
   const { data: acntgTree = [] } = useAcntgSeMngTree();
   const { data: essentialFiles = [] } = useEsntlAtchFileMngTree({ docSeComCd: "FNRS" });
@@ -126,7 +136,7 @@ function FnrsFormPage({ mode, initialData, createDefaults }: FnrsFormPageProps)
       (item) => !item.splmntCn || !item.splmntCn.trim(),
     );
     if (hasEmptySplmntCn) {
-      alert("보완요청내용이 있습니다. 보완 완료내용을 입력해 주세요.");
+      alert("보완 요청 내용이 있습니다.\n보완 완료 내용을 입력해 주세요.");
       return;
     }
 
@@ -305,7 +315,7 @@ function FnrsFormPage({ mode, initialData, createDefaults }: FnrsFormPageProps)
                   </>
                 ) : (
                   <>
-                    {fnrsCnsltnDocNo ? (
+                    {hasCompletedDraft ? (
                       <Button
                         color="orange"
                         type="button"
@@ -329,7 +339,7 @@ function FnrsFormPage({ mode, initialData, createDefaults }: FnrsFormPageProps)
           </div>
         </SectionCollapsibleGroup>
       </form>
-      {fnrsCnsltnDocNo ? (
+      {hasCompletedDraft && fnrsCnsltnDocNo ? (
         <PwrkCnsltnDocMngDialog
           open={isPwrkCnsltnDocMngOpen}
           fnrsCnsltnDocNo={fnrsCnsltnDocNo}
diff --git a/apps/as/src/shared/model/pbadms-sprt.ts b/apps/as/src/shared/model/pbadms-sprt.ts
index 959c8133d..669e3a234 100644
--- a/apps/as/src/shared/model/pbadms-sprt.ts
+++ b/apps/as/src/shared/model/pbadms-sprt.ts
@@ -207,7 +207,7 @@ export interface SplmntDmndSaveBase {
   splmntArtclComCd?: string | null;
   splmntDmndCn?: string;
   splmntDmndDt?: string;
-  splmntDmndAtchFileGroupId?: string;
+  splmntDmndAtchFileGroupId?: string | null;
   splmntCn?: string;
   splmntPicNm?: string;
   splmntCmptnDt?: string;
diff --git a/apps/as/src/widgets/pbadms-sprt/ui/attachments-view-section.tsx b/apps/as/src/widgets/pbadms-sprt/ui/attachments-view-section.tsx
index 2a492fd56..75ceffa3e 100644
--- a/apps/as/src/widgets/pbadms-sprt/ui/attachments-view-section.tsx
+++ b/apps/as/src/widgets/pbadms-sprt/ui/attachments-view-section.tsx
@@ -43,12 +43,13 @@ function AttachmentsViewSection({ esntlFileList, etcFileList }: AttachmentsViewS
                         ) : (
                           <div className="space-y-2">
                             {files.map((file) => (
-                              <AttachmentDownloadLink
-                                key={file.atflId}
-                                atflId={file.atflId}
-                                fileName={file.orgnlFileNm || "다운로드"}
-                                className="items-center"
-                              />
+                              <div key={file.atflId}>
+                                <AttachmentDownloadLink
+                                  atflId={file.atflId}
+                                  fileName={file.orgnlFileNm || "다운로드"}
+                                  className="items-center"
+                                />
+                              </div>
                             ))}
                           </div>
                         )}
diff --git a/apps/as/src/widgets/pbadms-sprt/ui/fnrs-shar-form-section.tsx b/apps/as/src/widgets/pbadms-sprt/ui/fnrs-shar-form-section.tsx
index baff36f8b..570c5ab7b 100644
--- a/apps/as/src/widgets/pbadms-sprt/ui/fnrs-shar-form-section.tsx
+++ b/apps/as/src/widgets/pbadms-sprt/ui/fnrs-shar-form-section.tsx
@@ -282,7 +282,7 @@ function FnrsSharFormSection({ initialSharTree, initialSharAtchFiles }: FnrsShar
       <div className="mt-6 px-2 pb-2">
         <h3 className="mb-2 text-xl font-semibold">첨부파일</h3>
         {!uploadedFile ? (
-          <p className="mb-2 text-lg text-muted-foreground">
+          <p className="mb-2 px-1 text-xl text-muted-foreground">
             총사업비 신청서(.hwp) 파일을 등록해주세요.
           </p>
         ) : null}
diff --git a/apps/as/src/widgets/pbadms-sprt/ui/splmnt-dmnd-form-section.tsx b/apps/as/src/widgets/pbadms-sprt/ui/splmnt-dmnd-form-section.tsx
index 8fdbec031..2738e5c1f 100644
--- a/apps/as/src/widgets/pbadms-sprt/ui/splmnt-dmnd-form-section.tsx
+++ b/apps/as/src/widgets/pbadms-sprt/ui/splmnt-dmnd-form-section.tsx
@@ -5,7 +5,11 @@ import { Controller, useFormContext, useWatch } from "react-hook-form";
 
 import { dayjs, getDefaultFileKey, useTus } from "@/shared/lib";
 import { AttachmentFileField, SectionCollapsible } from "@/shared/ui";
-import { AttachmentDownloadLink, attachService, useDownloadAttachmentByAtflId } from "@/entities/attach";
+import {
+  AttachmentDownloadLink,
+  attachService,
+  useDownloadAttachmentByAtflId,
+} from "@/entities/attach";
 import {
   Badge,
   Table,
@@ -292,7 +296,7 @@ function SplmntDmndFormSection({ readOnly = false }: SplmntDmndFormSectionProps)
                             value={field.value ?? ""}
                             onChange={field.onChange}
                             onBlur={field.onBlur}
-                            placeholder="보완완료 내용을 입력하세요."
+                            placeholder="보완 완료 내용을 입력하세요."
                             className="min-h-[6rem] !text-xl"
                           />
                         )}