diff --git a/src/main/java/cokr/xit/ens/modules/kkotalk/service/support/KkoTalkSender.java b/src/main/java/cokr/xit/ens/modules/kkotalk/service/support/KkoTalkSender.java
index d981d83..cda0709 100644
--- a/src/main/java/cokr/xit/ens/modules/kkotalk/service/support/KkoTalkSender.java
+++ b/src/main/java/cokr/xit/ens/modules/kkotalk/service/support/KkoTalkSender.java
@@ -94,7 +94,7 @@ public class KkoTalkSender extends SendProcTemplate {
 
 
                         List<Map<String, Object>> envelopeIds = (List<Map<String, Object>>)((Map<String, Object>)mResponse.getResultInfo()).get(
-                            "envelopeIds");
+                            "envelopes");
 
                         Map<String, KkoTalkApiRespVO> mApiResp = envelopeIds.stream()
                             .map(this::toApiRespVOMap)
@@ -316,8 +316,8 @@ public class KkoTalkSender extends SendProcTemplate {
 
             if (EnsErrCd.OK.equals(respVO.getErrCode())) {
                 Map<String, Object> mRespBody = (Map<String, Object>)respVO.getResultInfo();
-                List<Map<String, String>> documents = (List<Map<String, String>>)mRespBody.get("envelopeIds");
-                Map<String, Map<String, String>> mRespMsg = documents.stream()
+                List<Map<String, String>> envelopeIds = (List<Map<String, String>>)mRespBody.get("envelopes");
+                Map<String, Map<String, String>> mRespMsg = envelopeIds.stream()
                     .map(row -> {
                         Map<String, Object> m = new HashMap<>();
                         m.put("key", String.valueOf(row.get("externalId")));
@@ -403,8 +403,8 @@ public class KkoTalkSender extends SendProcTemplate {
         Map<String, Object> mResp = null;
         try {
             mResp = gson.fromJson(respMsg, Map.class);
-            if (CmmnUtil.isEmpty(mResp.get("envelopeIds")))
-                throw new EnsException(EnsErrCd.SEND620, String.format("전송요청API 오류. envelopeIds 키값이 없습니다. %s", respMsg));
+            if (CmmnUtil.isEmpty(mResp.get("envelopes")))
+                throw new EnsException(EnsErrCd.SEND620, String.format("전송요청API 오류. envelopes 키값이 없습니다. %s", respMsg));
         } catch (EnsException e) {
             errCode = e.getErrCd();
             errMsg = e.getMessage();