diff --git a/src/main/java/com/titi/titi_user/common/TiTiUserBusinessCodes.java b/src/main/java/com/titi/titi_user/common/TiTiUserBusinessCodes.java
index ad4c6f4..62f30df 100644
--- a/src/main/java/com/titi/titi_user/common/TiTiUserBusinessCodes.java
+++ b/src/main/java/com/titi/titi_user/common/TiTiUserBusinessCodes.java
@@ -8,13 +8,14 @@
 public enum TiTiUserBusinessCodes {
 
 	REGISTER_MEMBER_SUCCESS(200, "USR1002", "Successfully completed the regular membership registration."),
-	REGISTER_MEMBER_FAILURE_INVALID_AUTH_TOKEN(200, "USR1003", "The registration has failed due to an invalid Auth Token."),
 	REGISTER_MEMBER_FAILURE_ALREADY_EXISTS_USERNAME(200, "USR1004", "The registration has failed as the username already exists."),
 	LOGIN_SUCCESS(200, "USR1005", "You have successfully logged in"),
 	LOGIN_FAILURE_MISMATCHED_MEMBER_INFORMATION(200, "USR1006", "Login failed due to mismatched member information."),
 
 	AUTH_KEY_MISMATCHED_REGISTRATION_INFORMATION(400, "USR7000", "The authentication key does not match the registration information."),
-	UNAVAILABLE_USERNAME(400, "USR7001", "The username is unavailable."),
+	UNAVAILABLE_USERNAME(400, "USR7001", "The registration has failed due to the username is unavailable."),
+	REGISTER_MEMBER_FAILURE_INVALID_AUTH_TOKEN(400, "USR7002", "The registration has failed due to the invalid Auth Token."),
+
 	;
 
 	private final int status;