diff --git a/src/main/java/com/vmis/interfaceapp/model/basic/BasicRequest.java b/src/main/java/com/vmis/interfaceapp/model/basic/BasicRequest.java
index 8e63cda..16915b7 100644
--- a/src/main/java/com/vmis/interfaceapp/model/basic/BasicRequest.java
+++ b/src/main/java/com/vmis/interfaceapp/model/basic/BasicRequest.java
@@ -13,33 +13,33 @@ import lombok.Setter;
 @Schema(description = "자동차기본사항조회 요청 항목")
 public class BasicRequest {
 
-    // 본문 공통 메타
-    @Schema(description = "정보시스템ID", example = "41-345")
+    // 본문 공통 메타 (application.yml에서 자동 설정)
+    @Schema(description = "정보시스템ID (자동설정: vmis.system.infoSysId)", example = "41-345")
     @JsonProperty("INFO_SYS_ID")
     private String infoSysId;
 
-    @Schema(description = "정보시스템IP", example = "105.19.10.135")
+    @Schema(description = "정보시스템IP (자동설정: vmis.system.infoSysIp)", example = "105.19.10.135")
     @JsonProperty("INFO_SYS_IP")
     private String infoSysIp;
 
-    @Schema(description = "시군구코드", example = "41460")
+    @Schema(description = "시군구코드 (자동설정: vmis.system.sigunguCode)", example = "41460")
     @JsonProperty("SIGUNGU_CODE")
     private String sigunguCode;
 
-    // 서비스별 필드
-    @Schema(description = "연계정보코드", example = "AC1_FD11_01")
+    // 서비스별 필드 (application.yml에서 자동 설정)
+    @Schema(description = "연계정보코드 (자동설정: vmis.gov.services.basic.cntcInfoCode)", example = "AC1_FD11_01")
     @JsonProperty("CNTC_INFO_CODE")
     private String cntcInfoCode;
 
-    @Schema(description = "담당자ID", example = "")
+    @Schema(description = "담당자ID (자동설정: vmis.system.chargerId)", example = "")
     @JsonProperty("CHARGER_ID")
     private String chargerId;
 
-    @Schema(description = "담당자IP", example = "")
+    @Schema(description = "담당자IP (자동설정: vmis.system.chargerIp)", example = "")
     @JsonProperty("CHARGER_IP")
     private String chargerIp;
 
-    @Schema(description = "담당자명(사용자)", example = "")
+    @Schema(description = "담당자명(사용자) (자동설정: vmis.system.chargerNm)", example = "")
     @JsonProperty("CHARGER_NM")
     private String chargerNm;
 
diff --git a/src/main/java/com/vmis/interfaceapp/model/ledger/LedgerRequest.java b/src/main/java/com/vmis/interfaceapp/model/ledger/LedgerRequest.java
index 2903d7d..fd874cc 100644
--- a/src/main/java/com/vmis/interfaceapp/model/ledger/LedgerRequest.java
+++ b/src/main/java/com/vmis/interfaceapp/model/ledger/LedgerRequest.java
@@ -13,33 +13,33 @@ import lombok.Setter;
 @Setter
 public class LedgerRequest {
 
-    // 본문 공통 메타
-    @Schema(description = "정보시스템ID", example = "41-345")
+    // 본문 공통 메타 (application.yml에서 자동 설정)
+    @Schema(description = "정보시스템ID (자동설정: vmis.system.infoSysId)", example = "41-345")
     @JsonProperty("INFO_SYS_ID")
     private String infoSysId;
 
-    @Schema(description = "정보시스템IP", example = "105.19.10.135")
+    @Schema(description = "정보시스템IP (자동설정: vmis.system.infoSysIp)", example = "105.19.10.135")
     @JsonProperty("INFO_SYS_IP")
     private String infoSysIp;
 
-    @Schema(description = "시군구코드", example = "41460")
+    @Schema(description = "시군구코드 (자동설정: vmis.system.sigunguCode)", example = "41460")
     @JsonProperty("SIGUNGU_CODE")
     private String sigunguCode;
 
-    // 서비스별 필드
-    @Schema(description = "연계정보코드", example = "AC1_FD11_02")
+    // 서비스별 필드 (application.yml에서 자동 설정)
+    @Schema(description = "연계정보코드 (자동설정: vmis.gov.services.ledger.cntcInfoCode)", example = "AC1_FD11_02")
     @JsonProperty("CNTC_INFO_CODE")
     private String cntcInfoCode;
 
-    @Schema(description = "담당자ID", example = "")
+    @Schema(description = "담당자ID (자동설정: vmis.system.chargerId)", example = "")
     @JsonProperty("CHARGER_ID")
     private String chargerId;
 
-    @Schema(description = "담당자IP", example = "")
+    @Schema(description = "담당자IP (자동설정: vmis.system.chargerIp)", example = "")
     @JsonProperty("CHARGER_IP")
     private String chargerIp;
 
-    @Schema(description = "담당자명(사용자)", example = "")
+    @Schema(description = "담당자명(사용자) (자동설정: vmis.system.chargerNm)", example = "")
     @JsonProperty("CHARGER_NM")
     private String chargerNm;