diff --git a/src/main/java/com/aida/seller/common/context/UserContext.java b/src/main/java/com/aida/seller/common/context/UserContext.java
index 3b54b47..79defb3 100644
--- a/src/main/java/com/aida/seller/common/context/UserContext.java
+++ b/src/main/java/com/aida/seller/common/context/UserContext.java
@@ -24,6 +24,10 @@ public class UserContext {
             throw new UnauthorizedException("Gateway token verification failed");
         }
         if (!"AIDA".equals(holder.getSource())) {
+            if ("BUYER".equals(holder.getSource())){
+                AuthPrincipalVo buyerHolder = getBuyerHolder();
+                return buyerHolder;
+            }
             throw new UnauthorizedException("Gateway token verification failed");
         }
         return holder;
@@ -52,6 +56,19 @@ public class UserContext {
         }
         return holder.getId();
     }
+    public static AuthPrincipalVo getBuyerHolder() {
+        AuthPrincipalVo holder = userHolder.get();
+        if (holder == null) {
+            if (optionalAuth.get()) {
+                return null;
+            }
+            throw new UnauthorizedException("Gateway token verification failed");
+        }
+        if (!"BUYER".equals(holder.getSource())) {
+            throw new UnauthorizedException("Gateway token verification failed");
+        }
+        return holder;
+    }
 
     public static Long getBuyerIdSafely() {
         AuthPrincipalVo holder = userHolder.get();