diff --git a/.env.development b/.env.development
index c22985f..20b3528 100644
--- a/.env.development
+++ b/.env.development
@@ -11,6 +11,7 @@ NEXT_PUBLIC_QSP_API_URL=https://jp-dev.qsalesplatform.com
 #1:1문의 api
 NEXT_PUBLIC_INQUIRY_API_URL=https://jp-dev.qsalesplatform.com
 
+EMAIL_TITLE_PREFIX=(System Test)
 
 #QPARTNER 로그인 api
 DB_HOST=202.218.61.226
diff --git a/.env.localhost b/.env.localhost
index 0051309..3f62085 100644
--- a/.env.localhost
+++ b/.env.localhost
@@ -11,6 +11,8 @@ NEXT_PUBLIC_QSP_API_URL=https://jp-dev.qsalesplatform.com
 #1:1문의 api
 NEXT_PUBLIC_INQUIRY_API_URL=https://jp-dev.qsalesplatform.com
 
+EMAIL_TITLE_PREFIX=
+
 #QPARTNER 로그인 api
 DB_HOST=202.218.61.226
 DB_USER=readonly
diff --git a/.env.production b/.env.production
index fc11d33..1835dc5 100644
--- a/.env.production
+++ b/.env.production
@@ -9,6 +9,8 @@ NEXT_PUBLIC_QSP_API_URL=https://jp.qsalesplatform.com
 #1:1문의 api
 NEXT_PUBLIC_INQUIRY_API_URL=http://172.23.4.129:8110
 
+EMAIL_TITLE_PREFIX=
+
 #QPARTNER 로그인 api
 DB_HOST=202.218.61.226
 DB_USER=readonly
diff --git a/src/app/api/auth/route.ts b/src/app/api/auth/route.ts
index bb64208..2ad1416 100644
--- a/src/app/api/auth/route.ts
+++ b/src/app/api/auth/route.ts
@@ -57,7 +57,7 @@ export async function POST(request: Request) {
     session.storeLvl = result.data.data.storeLvl
     session.custCd = result.data.data.custCd
     session.builderNo = result.data.data.builderNo
-    session.builderNm = ''
+    session.builderNm = result.data.data.builderNm
     session.isLoggedIn = true
 
     if (result.data.data.userId === 'T01') {
@@ -105,7 +105,7 @@ export async function POST(request: Request) {
       STORE_LVL: result.data.data.storeLvl,
       CUST_CD: result.data.data.custCd,
       BUILDER_NO: result.data.data.builderNo,
-      BUILDER_NM: '',
+      BUILDER_NM: result.data.data.builderNm,
       IS_LOGGED_IN: true,
       ROLE: '',
     }
diff --git a/src/libs/session.ts b/src/libs/session.ts
index 5036e4e..a11eaf1 100644
--- a/src/libs/session.ts
+++ b/src/libs/session.ts
@@ -45,6 +45,7 @@ export const defaultSession: SessionData = {
   storeLvl: null,
   custCd: null,
   builderNo: null,
+  builderNm: null,
   isLoggedIn: false,
   role: null,
 }
diff --git a/src/store/session.ts b/src/store/session.ts
index 13f6f12..054bc97 100644
--- a/src/store/session.ts
+++ b/src/store/session.ts
@@ -41,6 +41,7 @@ const initialState: InitialState = {
     storeLvl: null,
     custCd: null,
     builderNo: null,
+    builderNm: null,
     isLoggedIn: false,
     role: null,
     builderNm: null,