diff --git a/src/main/java/cokr/xit/ens/modules/kkotalk/domain/SendDetailKkoTalk.java b/src/main/java/cokr/xit/ens/modules/kkotalk/domain/SendDetailKkoTalk.java
index c03bc6a..304e1b6 100644
--- a/src/main/java/cokr/xit/ens/modules/kkotalk/domain/SendDetailKkoTalk.java
+++ b/src/main/java/cokr/xit/ens/modules/kkotalk/domain/SendDetailKkoTalk.java
@@ -53,6 +53,7 @@ public class SendDetailKkoTalk extends BaseEntity {
     @Column(name = "review_expires_at", nullable = true)
     private String reviewExpiresAt;
 
+    @Setter
     @Column(name = "guide", nullable = true)
     private String guide;
 
@@ -109,36 +110,46 @@ public class SendDetailKkoTalk extends BaseEntity {
      * 문서매핑용 식별자 - 최대 40자
      * </pre>
      */
+    @Setter
     @Column(name = "external_id", nullable = true)
     private String externalId;
 
+    @Setter
     @Column(name = "envelope_id", nullable = true)
     private String envelopeId;
     //
     // @Column(name = "status", nullable = true)
     // private String status;
 
+    @Setter
     @Column(name = "sent_at", nullable = true)
     private String sentAt;
 
+    @Setter
     @Column(name = "received_at", nullable = true)
     private String receivedAt;
 
+    @Setter
     @Column(name = "read_at", nullable = true)
     private String readAt;
 
+    @Setter
     @Column(name = "authenticated_at", nullable = true)
     private String authenticatedAt;
 
+    @Setter
     @Column(name = "ott_verified_at", nullable = true)
     private String ottVerifiedAt;
 
+    @Setter
     @Column(name = "is_notification_unavailable", nullable = true)
     private String isNotificationUnavailable;
 
+    @Setter
     @Column(name = "user_notified_at", nullable = true)
     private String userNotifiedAt;
 
+    @Setter
     @Column(name = "distribution_received_at", nullable = true)
     private String distributionReceivedAt;
 
diff --git a/src/main/java/cokr/xit/ens/modules/kkotalk/model/KkoTalkApiRespVO.java b/src/main/java/cokr/xit/ens/modules/kkotalk/model/KkoTalkApiRespVO.java
new file mode 100644
index 0000000..9c5c2b5
--- /dev/null
+++ b/src/main/java/cokr/xit/ens/modules/kkotalk/model/KkoTalkApiRespVO.java
@@ -0,0 +1,21 @@
+package cokr.xit.ens.modules.kkotalk.model;
+
+import io.swagger.v3.oas.annotations.media.*;
+import lombok.*;
+
+@Getter
+@ToString
+@Builder
+@EqualsAndHashCode
+@Schema(name = "KkoTalkApiRespVO")
+public class KkoTalkApiRespVO {
+
+    @Schema(title = "응답코드", example = " ")
+    private String errorCode;
+
+    @Schema(title = "응답메시지", example = " ")
+    private String errorMessage;
+
+    @Schema(title = "응답데이터", example = " ")
+    private Object data;
+}
diff --git a/src/main/java/cokr/xit/ens/modules/kkotalk/model/KkotalkDTO.java b/src/main/java/cokr/xit/ens/modules/kkotalk/model/KkotalkDTO.java
index 0207c86..1dce06f 100644
--- a/src/main/java/cokr/xit/ens/modules/kkotalk/model/KkotalkDTO.java
+++ b/src/main/java/cokr/xit/ens/modules/kkotalk/model/KkotalkDTO.java
@@ -7,6 +7,7 @@ import javax.validation.*;
 import javax.validation.constraints.*;
 
 import cokr.xit.ens.core.model.*;
+import cokr.xit.ens.modules.kkotalk.code.*;
 import cokr.xit.ens.modules.kkotalk.model.config.*;
 import io.swagger.v3.oas.annotations.media.*;
 import lombok.*;
@@ -130,7 +131,7 @@ public class KkotalkDTO extends KkotalkApiDTO {
     public static class SendDetailKkoTalkDTO extends Envelope {
         private String envelopeId;
         private String link;
-        private String status;
+        private KkoTalkStatusCd status;
         private String sentAt;
         private String receivedAt;
         private String readAt;
diff --git a/src/main/java/cokr/xit/ens/modules/kkotalk/service/support/KkoTalkApiService.java b/src/main/java/cokr/xit/ens/modules/kkotalk/service/support/KkoTalkApiService.java
index 21949c3..98e4096 100644
--- a/src/main/java/cokr/xit/ens/modules/kkotalk/service/support/KkoTalkApiService.java
+++ b/src/main/java/cokr/xit/ens/modules/kkotalk/service/support/KkoTalkApiService.java
@@ -1,31 +1,20 @@
 package cokr.xit.ens.modules.kkotalk.service.support;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Objects;
-import java.util.Set;
-import java.util.stream.Collectors;
-
-import javax.validation.ConstraintViolation;
-import javax.validation.Validation;
-import javax.validation.Validator;
-
-import org.apache.commons.lang3.StringUtils;
+import java.util.*;
+import java.util.stream.*;
+
+import javax.validation.*;
+
+import org.apache.commons.lang3.*;
 import org.springframework.beans.factory.annotation.Value;
-import org.springframework.http.HttpMethod;
-import org.springframework.stereotype.Component;
-
-import cokr.xit.ens.core.exception.BizRuntimeException;
-import cokr.xit.ens.core.utils.ApiWebClientUtil;
-import cokr.xit.ens.core.utils.Checks;
-import cokr.xit.ens.core.utils.JsonUtils;
-import cokr.xit.ens.modules.kkotalk.model.CmmEnsRequestDTO;
-import cokr.xit.ens.modules.kkotalk.model.CmmEnsRlaybsnmDTO;
-import cokr.xit.ens.modules.kkotalk.model.KkotalkApiDTO;
-import cokr.xit.ens.modules.kkotalk.model.KkotalkDTO;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.*;
+import org.springframework.stereotype.*;
+
+import cokr.xit.ens.core.exception.*;
+import cokr.xit.ens.core.utils.*;
+import cokr.xit.ens.modules.kkotalk.model.*;
+import lombok.*;
+import lombok.extern.slf4j.*;
 
 /**
  * <pre>
@@ -177,7 +166,7 @@ public class KkoTalkApiService {
      * @param reqDTO KkotalkDTO.BulkSendRequest
      * @return KkotalkDTO.BulkSendResponse
      */
-    public KkotalkDTO.BulkSendResponse requestSendBulk(final KkotalkDTO.BulkSendRequest reqDTO) {
+    public KkotalkDTO.BulkSendResponse requestSendBulk2(final KkotalkDTO.BulkSendRequest reqDTO) {
         if(Checks.isEmpty(reqDTO.getProductCode())){
             throw BizRuntimeException.create("상품 코드는 필수 입니다.");
         }
@@ -232,6 +221,69 @@ public class KkoTalkApiService {
             getRlaybsnmInfo(reqDTO));
     }
 
+    /**
+     * <pre>
+     * 모바일웹 연계 문서발송 요청 : POST
+     * -.이용기관 서버에서 전자문서 서버로 문서발송 처리를 요청합니다.
+     * </pre>
+     * @param reqDTO KkotalkDTO.BulkSendRequest
+     * @return KkotalkDTO.BulkSendResponse
+     */
+    public String requestSendBulk(final KkotalkDTO.BulkSendRequest reqDTO) {
+        if(Checks.isEmpty(reqDTO.getProductCode())){
+            throw BizRuntimeException.create("상품 코드는 필수 입니다.");
+        }
+
+        List<String> errors = new ArrayList<>();
+
+        List<KkotalkApiDTO.Envelope> envelopes = reqDTO.getEnvelopes();
+        for(int idx = 0; idx < envelopes.size(); idx++) {
+            final Set<ConstraintViolation<KkotalkApiDTO.Envelope>> list = validator.validate(envelopes.get(idx));
+            if (!list.isEmpty()) {
+                int finalIdx = idx;
+                errors.addAll(list.stream()
+                    .map(row -> String.format("%s[%d]=%s", row.getPropertyPath(), finalIdx +1, row.getMessageTemplate()))
+                    .collect(Collectors.toList())
+                );
+            }
+        }
+
+        for(int idx = 0; idx < envelopes.size(); idx++) {
+            final KkotalkApiDTO.Envelope envelope = envelopes.get(idx);
+
+            if(envelope.getReviewExpiresAt() != null){
+                if(envelope.getReviewExpiresAt().compareTo(envelope.getReadExpiresAt()) < 0){
+                    errors.add("reviewExpiresAt=재열람 만료일시를 최조 열람 만료일시 보다 큰 날짜로 입력해주세요.");
+                }
+            }
+
+            if (Checks.isEmpty(envelope.getCi())) {
+                if (Checks.isEmpty(envelope.getName()))         errors.add(String.format("받는이 이름은 필수입니다(name[%d] 번째 오류)", idx+1));
+                if (Checks.isEmpty(envelope.getPhoneNumber())) errors.add(String.format("받는이 전화번호는 필수입니다(phoneNumber[%d] 번째 오류)", idx+1));
+                if (Checks.isEmpty(envelope.getBirthday()))     errors.add(String.format("받는이 생년월일은 필수입니다(birthday[%d] 번째 오류)", idx+1));
+            } else {
+                final StringBuilder sb = new StringBuilder()
+                    .append(StringUtils.defaultString(envelope.getName(), StringUtils.EMPTY))
+                    .append(StringUtils.defaultString(envelope.getPhoneNumber(), StringUtils.EMPTY))
+                    .append(StringUtils.defaultString(envelope.getBirthday(), StringUtils.EMPTY));
+
+                if(Checks.isNotEmpty(sb.toString())){
+                    errors.add(String.format("CI가 지정 되었습니다(받는이 정보 불필요:[%d] 번째 오류) .", idx+1));
+                }
+            }
+        }
+        if(!errors.isEmpty()){
+            throw BizRuntimeException.create(errors.toString());
+        }
+        String param = "{\"envelopes\":" + JsonUtils.toJson(envelopes) + "}";
+        return webClient.exchangeKkotalk(
+            HOST + API_BULKSEND[0].replace("{PRODUCT_CODE}", reqDTO.getProductCode()),
+            HttpMethod.valueOf(API_BULKSEND[1]),
+            param,
+            String.class,
+            getRlaybsnmInfo(reqDTO));
+    }
+
     /**
      * <pre>
      * 대량(bulk) 문서 상태 조회 API : POST
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 0ae1b06..d491c01 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
@@ -1,49 +1,38 @@
 package cokr.xit.ens.modules.kkotalk.service.support;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Optional;
-import java.util.stream.Collectors;
-
-import org.apache.commons.lang3.StringUtils;
+import java.util.*;
+import java.util.stream.*;
+
+import org.apache.commons.lang3.*;
 import org.springframework.beans.factory.annotation.Value;
-import org.springframework.context.ApplicationEventPublisher;
-import org.springframework.stereotype.Component;
-import org.springframework.transaction.annotation.Propagation;
-import org.springframework.transaction.annotation.Transactional;
-
-import com.google.common.collect.Lists;
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-
-import cokr.xit.ens.core.aop.EnsResponseVO;
-import cokr.xit.ens.core.exception.EnsException;
-import cokr.xit.ens.core.exception.code.EnsErrCd;
-import cokr.xit.ens.core.monitor.slack.event.MonitorEvent;
-import cokr.xit.ens.core.utils.CmmnUtil;
-import cokr.xit.ens.core.utils.MapDeserailizer;
-import cokr.xit.ens.modules.common.biztmplt.SendProcTemplate;
-import cokr.xit.ens.modules.common.code.PostSeCd;
-import cokr.xit.ens.modules.common.code.StatCd;
-import cokr.xit.ens.modules.common.ctgy.sys.mng.domain.OrgMng;
-import cokr.xit.ens.modules.common.ctgy.sys.mng.service.OrgMngService;
-import cokr.xit.ens.modules.common.domain.SendMast;
-import cokr.xit.ens.modules.common.domain.repository.SendMastRepository;
-import cokr.xit.ens.modules.common.domain.support.FieldError;
-import cokr.xit.ens.modules.common.event.SendMastStatUpdateEvent;
-import cokr.xit.ens.modules.common.monitor.MessageByPhase;
-import cokr.xit.ens.modules.kkomydoc.code.KkoMydocStatusCd;
-import cokr.xit.ens.modules.kkomydoc.domain.SendDetailKkoMydoc;
-import cokr.xit.ens.modules.kkomydoc.domain.SendDetailKkoMydocReqHist;
-import cokr.xit.ens.modules.kkomydoc.domain.repository.SendDetailKkoMydocReqHistRepository;
-import cokr.xit.ens.modules.kkomydoc.model.KkoMydocApiRespVO;
-import cokr.xit.ens.modules.kkotalk.mapper.IKkoTalkMapper;
-import cokr.xit.ens.modules.kkotalk.model.KkotalkApiDTO;
-import cokr.xit.ens.modules.kkotalk.model.KkotalkDTO;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
+import org.springframework.context.*;
+import org.springframework.stereotype.*;
+import org.springframework.transaction.annotation.*;
+
+import com.google.common.collect.*;
+import com.google.gson.*;
+
+import cokr.xit.ens.core.aop.*;
+import cokr.xit.ens.core.exception.*;
+import cokr.xit.ens.core.exception.code.*;
+import cokr.xit.ens.core.monitor.slack.event.*;
+import cokr.xit.ens.core.utils.*;
+import cokr.xit.ens.modules.common.biztmplt.*;
+import cokr.xit.ens.modules.common.code.*;
+import cokr.xit.ens.modules.common.ctgy.sys.mng.domain.*;
+import cokr.xit.ens.modules.common.ctgy.sys.mng.service.*;
+import cokr.xit.ens.modules.common.domain.*;
+import cokr.xit.ens.modules.common.domain.repository.*;
+import cokr.xit.ens.modules.common.domain.support.*;
+import cokr.xit.ens.modules.common.event.*;
+import cokr.xit.ens.modules.common.monitor.*;
+import cokr.xit.ens.modules.kkotalk.code.*;
+import cokr.xit.ens.modules.kkotalk.domain.*;
+import cokr.xit.ens.modules.kkotalk.domain.repository.*;
+import cokr.xit.ens.modules.kkotalk.mapper.*;
+import cokr.xit.ens.modules.kkotalk.model.*;
+import lombok.*;
+import lombok.extern.slf4j.*;
 
 // FIXME: 카카오톡 신규 추가
 @Slf4j
@@ -53,13 +42,12 @@ public class KkoTalkSender extends SendProcTemplate {
 
     private final ApplicationEventPublisher applicationEventPublisher;
     private final SendMastRepository sendMastRepository;
-    //private final SendDetailKkoMydocRepository sendDetailKkoMydocRepository;
     private final IKkoTalkMapper talkMapper;
-    private final SendDetailKkoMydocReqHistRepository sendDetailKkoMydocReqHistRepository;
+    private final SendDetailKkoTalkReqHistRepository sendDetailKkoTalkReqHistRepository;
     private final OrgMngService orgMngService;
-    //private final KkoMydocApiSpec kkoMydocApi;
     private final KkoTalkApiService kkoTalkApi;
-    @Value("${contract.kakao.pay.mydoc.api.bulksend-batch-unit}")
+
+    @Value("${contract.kakao.talk.bulksend-batch-unit}")
     private int SEND_BATCH_UNIT;
 
     private Gson gson = new GsonBuilder().registerTypeAdapter(Map.class, new MapDeserailizer()).disableHtmlEscaping().create();
@@ -84,12 +72,13 @@ public class KkoTalkSender extends SendProcTemplate {
             Lists.partition(sendDetails, SEND_BATCH_UNIT).stream()
                     .forEach(list -> {
 
-                        String sendRespBody = null;
-                        String jsonStr = null;
+                        String resp = null;
+                        List<KkotalkApiDTO.Envelope> envelopes = null;
+
                         try {
 
-                            List<KkotalkApiDTO.Envelope> envelopes = this.makeMessage(list);
-                            KkotalkDTO.BulkSendResponse resp = kkoTalkApi.requestSendBulk(
+                            envelopes = this.makeMessage(list);
+                            resp = kkoTalkApi.requestSendBulk(
                                 KkotalkDTO.BulkSendRequest.builder()
                                     .envelopes(envelopes)
                                     .signguCode(orgMng.getOrgCd())
@@ -98,69 +87,37 @@ public class KkoTalkSender extends SendProcTemplate {
                                     .build()
                             );
 
-/*
-                            EnsResponseVO message = this.makeMessage(list);
-                            if (!(EnsErrCd.OK.equals(message.getErrCode()) || null == message.getErrCode()))
-                                throw new EnsException(message.getErrCode(), message.getErrMsg());
-                            jsonStr = String.valueOf(message.getResultInfo());
-
-                            ResponseEntity<String> resp = kkoMydocApi.bulkSend(orgMng.getKkoMdAccessToken(), orgMng.getKkoMdContractUuid(), jsonStr);
-                            if (log.isDebugEnabled()) {
-                                StringBuffer sb = new StringBuffer();
-                                sb.append("\n==============================================================================")
-                                        .append("\n[ Kakao Mydoc - Sending ]")
-                                        .append("\n### Request Info...")
-                                        .append("\n" + jsonStr)
-                                        .append("\n### Response Info...")
-                                        .append("\n" + resp.getBody())
-                                        .append("\n==============================================================================");
-                                log.debug(sb.toString());
-                            }
-
-                            sendRespBody = resp.getBody();
-                            if (resp.getStatusCode() != HttpStatus.OK)
-                                throw new EnsException(EnsErrCd.SEND620, String.format("전송요청 중.. %s %s", resp.getStatusCode().toString(), resp.getBody()));
-                            EnsResponseVO mResponse = this.respMsgToMap(resp.getBody());
+                            EnsResponseVO<?> mResponse = this.respMsgToMap(resp);
                             if (!EnsErrCd.OK.equals(mResponse.getErrCode()))
                                 throw new EnsException(mResponse.getErrCode(), mResponse.getErrMsg());
-                            List<Map<String, Object>> documents = (List<Map<String, Object>>) ((Map<String, Object>) mResponse.getResultInfo()).get("documents");
-
-
+                            List<Map<String, Object>> documents = (List<Map<String, Object>>) ((Map<String, Object>) mResponse.getResultInfo()).get("envelopeIds");
 
-
-                            Map<String, KkoMydocApiRespVO> mApiRespVOByExtDocUuid = documents.stream()
-                                    .map(row -> this.toApiRespVOMap(row))
-                                    .collect(Collectors.toMap(m -> String.valueOf(m.get("key")), m -> (KkoMydocApiRespVO) m.get("value"), (k1, k2) -> k1));
+                            Map<String, KkoTalkApiRespVO> mApiResp = documents.stream()
+                                .map(this::toApiRespVOMap)
+                                .collect(Collectors.toMap(m -> String.valueOf(m.get("key")), m -> (KkoTalkApiRespVO) m.get("value"), (k1, k2) -> k1));
 
                             list.stream()
-                                    .forEach(row -> this.modifyDocSendRsltByExtDocUuid(row, mApiRespVOByExtDocUuid));
-
-
+                                .forEach(row -> this.modifyTalkSendRsltByExtDocUuid(row, mApiResp));
 
                         } catch (EnsException e) {
 
                             list.stream()
                                     .forEach(row -> {
-                                        row.set(KkoMydocStatusCd.SENT_FAIL);
-                                        row.setError(FieldError.initBuilder()
-                                                .errorCode(e.getErrCd().getCode())
-                                                .errorMessage(e.getMessage())
-                                                .build());
+                                        row.setStatus(KkoTalkStatusCd.SENT_FAIL);
+                                        row.setErrorCode(e.getErrCd().getCode());
+                                        row.setErrorMessage(e.getMessage());
                                     });
                         } catch (Exception e) {
 
                             list.stream()
                                     .forEach(row -> {
-                                        row.setKkoDocStat(KkoMydocStatusCd.SENT_FAIL);
-                                        row.setError(FieldError.initBuilder()
-                                                .errorCode(EnsErrCd.SEND500.getCode())
-                                                .errorMessage(e.getMessage())
-                                                .build());
+                                        row.setStatus(KkoTalkStatusCd.SENT_FAIL);
+                                        row.setErrorCode(EnsErrCd.SEND500.getCode());
+                                        row.setErrorMessage(e.getMessage());
                                     });
-*/
                         } finally {
-//                            if (!CmmnUtil.isEmpty(jsonStr))
-//                                sendDetailKkoMydocReqHistRepository.saveAll(this.toSendDetailReqHist(list, jsonStr, sendRespBody));
+                            if (!CmmnUtil.isEmpty(envelopes))
+                                sendDetailKkoTalkReqHistRepository.saveAll(this.toSendDetailReqHist(list, JsonUtils.toJson(envelopes), resp));
                         }
 
                     });
@@ -172,7 +129,7 @@ public class KkoTalkSender extends SendProcTemplate {
             if (cntSuccess.get() > 0)
                 respVO = EnsResponseVO.okBuilder()
                         .resultInfo(sendDetails.stream()
-//                                .map(row -> this.toResultInfo(row))
+                                .map(row -> this.toResultInfo(row))
                                 .collect(Collectors.toList()))
                         .build();
             else
@@ -199,7 +156,7 @@ public class KkoTalkSender extends SendProcTemplate {
                     applicationEventPublisher.publishEvent(MonitorEvent.builder()
                             .message(MessageByPhase.builder()
                                     .oClass(getClass().getSimpleName() + "." + new Throwable().getStackTrace()[0].getMethodName())
-                                    .postSeCd(PostSeCd.kkoMydoc)
+                                    .postSeCd(PostSeCd.kkoTalk)
                                     .statCd(StatCd.sendfail)
                                     .errCd(respVO.getErrCode())
                                     .message("-.SendMastId: " + sendMastId + "\n" + respVO.getErrMsg())
@@ -268,14 +225,14 @@ public class KkoTalkSender extends SendProcTemplate {
      * @return
      */
     private Map<String, Object> toApiRespVOMap(Map<String, Object> row) {
-        KkoMydocApiRespVO apiRespVO = KkoMydocApiRespVO.builder()
-                .error_code(row.containsKey("error_code") ? String.valueOf(row.get("error_code")) : null)
-                .error_message(row.containsKey("error_message") ? String.valueOf(row.get("error_message")) : null)
-                .data(row.containsKey("document_binder_uuid") ? String.valueOf(row.get("document_binder_uuid")) : null)
+        KkoTalkApiRespVO apiRespVO = KkoTalkApiRespVO.builder()
+                .errorCode(row.containsKey("errorCode") ? String.valueOf(row.get("errorCode")) : null)
+                .errorMessage(row.containsKey("errorMessage") ? String.valueOf(row.get("errorMessage")) : null)
+                .data(row.containsKey("envelopeId") ? String.valueOf(row.get("envelopeId")) : null)
                 .build();
 
         Map<String, Object> m = new HashMap<>();
-        m.put("key", row.get("external_document_uuid"));
+        m.put("key", row.get("externalId"));
         m.put("value", apiRespVO);
         return m;
     }
@@ -284,34 +241,31 @@ public class KkoTalkSender extends SendProcTemplate {
      * 전송요청결과 갱신(update)
      * -. 성공/실패 여부에 따라 문서식별번호(document_binder_uuid) 및 Error 필드 갱신
      *
-     * @param row
-     * @param mApiRespVOByExtDocUuid
+     * @param row SendDetailKkoTalkDTO
+     * @param map Map<String, KkoTalkApiRespVO>
      */
-    private void modifyDocSendRsltByExtDocUuid(SendDetailKkoMydoc row, Map<String, KkoMydocApiRespVO> mApiRespVOByExtDocUuid) {
-        KkoMydocApiRespVO apiRespVO = mApiRespVOByExtDocUuid.get(row.getPropExternalDocumentUuid());
-        if (CmmnUtil.isEmpty(apiRespVO.getError_code())) {
-            row.setKkoDocStat(KkoMydocStatusCd.SENT);
-            row.setDocumentBinderUuid(String.valueOf(apiRespVO.getData()));
-            row.setError(FieldError.initBuilder().build());
+    private void modifyTalkSendRsltByExtDocUuid(KkotalkDTO.SendDetailKkoTalkDTO row, Map<String, KkoTalkApiRespVO> map) {
+        KkoTalkApiRespVO apiRespVO = map.get(row.getExternalId());
+        if (CmmnUtil.isEmpty(apiRespVO.getErrorCode())) {
+            row.setStatus(KkoTalkStatusCd.SENT);
+            row.setEnvelopeId(String.valueOf(apiRespVO.getData()));
+            //row.setErrorCode(FieldError.initBuilder().build());
         } else {
-            row.setKkoDocStat(KkoMydocStatusCd.valueOfEnum(apiRespVO.getError_code()));
-            row.setError(FieldError.initBuilder()
-                    .errorCode(EnsErrCd.SEND630.getCode())
-                    .errorMessage(String.format("%s %s", apiRespVO.getError_code(), apiRespVO.getError_message()))
-                    .build());
+            row.setStatus(KkoTalkStatusCd.valueOfEnum(apiRespVO.getErrorCode()));
+            row.setErrorCode(EnsErrCd.SEND630.getCode());
+            row.setErrorMessage(String.format("%s %s", apiRespVO.getErrorCode(), apiRespVO.getErrorMessage()));
         }
 
     }
 
 
-    private Map<String, String> toResultInfo(SendDetailKkoMydoc row) {
+    private Map<String, String> toResultInfo(KkotalkDTO.SendDetailKkoTalkDTO row) {
         Map<String, String> m = new HashMap<>();
-//        m.put("msgIdx", row.getMsgIdx());
-        m.put("documentBinderUuid", row.getDocumentBinderUuid());
-        m.put("externalDocumentUuid", row.getPropExternalDocumentUuid());
-        if (!CmmnUtil.isEmpty(row.getError())) {
-            m.put("errCd", row.getError().getErrorCode());
-            m.put("errMsg", row.getError().getErrorMessage());
+        m.put("envelopeId", row.getEnvelopeId());
+        m.put("externalId", row.getExternalId());
+        if (!CmmnUtil.isEmpty(row.getErrorCode())) {
+            m.put("errCd", row.getErrorCode());
+            m.put("errMsg", row.getErrorMessage());
         }
         return m;
     }
@@ -324,14 +278,14 @@ public class KkoTalkSender extends SendProcTemplate {
      * @param respMsg
      * @return
      */
-    private List<SendDetailKkoMydocReqHist> toSendDetailReqHist(List<SendDetailKkoMydoc> list, String sendMsg, String respMsg) {
+    private List<SendDetailKkoTalkReqHist> toSendDetailReqHist(List<KkotalkDTO.SendDetailKkoTalkDTO> list, String sendMsg, String respMsg) {
 
 
-        List<Map<String, Object>> sendMsgList = (List<Map<String, Object>>) gson.fromJson(sendMsg, Map.class).get("documents");
+        List<Map<String, Object>> sendMsgList = (List<Map<String, Object>>) gson.fromJson(sendMsg, Map.class).get("envelopes");
         Map<String, Long> mSendDetailIds = list.stream()
                 .map(row -> {
                     Map<String, Object> m = new HashMap<>();
-                    m.put("key", row.getPropExternalDocumentUuid());
+                    m.put("key", row.getExternalId());
                     m.put("value", row.getSendDetailId());
                     return m;
                 })
@@ -342,15 +296,15 @@ 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("documents");
+            List<Map<String, String>> documents = (List<Map<String, String>>) mRespBody.get("envelopeIds");
             Map<String, Map<String, String>> mRespMsg = documents.stream()
                     .map(row -> {
                         Map<String, Object> m = new HashMap<>();
-                        m.put("key", String.valueOf(row.get("external_document_uuid")));
+                        m.put("key", String.valueOf(row.get("externalId")));
                         Map<String, String> mValue = new HashMap<>();
-                        mValue.put("document_binder_uuid", row.get("document_binder_uuid"));
-                        mValue.put("error_code", row.get("error_code"));
-                        mValue.put("error_message", row.get("error_message"));
+                        mValue.put("envelopeId", row.get("envelopeId"));
+                        mValue.put("errorCode", row.get("errorCode"));
+                        mValue.put("errorMessage", row.get("errorMessage"));
                         mValue.put("rawMsg", gson.toJson(row));
                         m.put("value", mValue);
                         return m;
@@ -359,21 +313,22 @@ public class KkoTalkSender extends SendProcTemplate {
 
             return sendMsgList.stream()
                     .map(row -> {
-                        Map<String, String> property = (Map<String, String>) row.get("property");
-                        String externalDocumentUuid = property.get("external_document_uuid");
-                        boolean isSuccess = CmmnUtil.isEmpty(mRespMsg.get(externalDocumentUuid).get("error_code"));
+                        //
+                        //Map<String, String> property = (Map<String, String>) row.get("property");
+                        String externalId = (String)row.get("externalId");
+                        boolean isSuccess = CmmnUtil.isEmpty(mRespMsg.get(externalId).get("errorCode"));
 
-                        return SendDetailKkoMydocReqHist.builder()
-                                .sendDetailId(mSendDetailIds.get(externalDocumentUuid))
+                        return SendDetailKkoTalkReqHist.builder()
+                                .sendDetailId(mSendDetailIds.get(externalId))
                                 .sendRawMsg(gson.toJson(row))
-                                .externalDocumentUuid(externalDocumentUuid)
-                                .documentBinderUuid(mRespMsg.get(externalDocumentUuid).get("document_binder_uuid"))
-                                .respRawMsg(mRespMsg.get(externalDocumentUuid).get("rawMsg"))
+                                .externalId(externalId)
+                                .envelopeId(mRespMsg.get(externalId).get("envelopeId"))
+                                .respRawMsg(mRespMsg.get(externalId).get("rawMsg"))
                                 .error(FieldError.initBuilder()
                                         .errorCode(isSuccess ? null : EnsErrCd.SEND620.getCode())
                                         .errorMessage(isSuccess ? null : String.format("%s %s"
-                                                , mRespMsg.get(externalDocumentUuid).get("error_code")
-                                                , mRespMsg.get(externalDocumentUuid).get("error_message")
+                                                , mRespMsg.get(externalId).get("errorCode")
+                                                , mRespMsg.get(externalId).get("errorMessage")
                                         ))
                                         .build())
                                 .build();
@@ -383,12 +338,13 @@ public class KkoTalkSender extends SendProcTemplate {
         } else {
             return sendMsgList.stream()
                     .map(row -> {
-                        Map<String, String> property = (Map<String, String>) row.get("property");
-                        String externalDocumentUuid = property.get("external_document_uuid");
-                        return SendDetailKkoMydocReqHist.builder()
-                                .sendDetailId(mSendDetailIds.get(externalDocumentUuid))
+                        //Map<String, String> property = (Map<String, String>) row.get("property");
+                        String externalId = (String)row.get("externalId");
+
+                        return SendDetailKkoTalkReqHist.builder()
+                                .sendDetailId(mSendDetailIds.get(externalId))
                                 .sendRawMsg(gson.toJson(row))
-                                .externalDocumentUuid(externalDocumentUuid)
+                                .externalId(externalId)
                                 .respRawMsg(respMsg)
                                 .error(FieldError.initBuilder()
                                         .errorCode(respVO.getErrCode().getCode())
@@ -400,13 +356,13 @@ public class KkoTalkSender extends SendProcTemplate {
         }
     }
 
-    private EnsResponseVO respMsgToMap(String respMsg) {
+    private EnsResponseVO<?> respMsgToMap(String respMsg) {
         EnsErrCd errCode = EnsErrCd.OK;
         String errMsg = EnsErrCd.OK.getCodeNm();
         Map<String, Object> mResp = null;
         try {
             mResp = gson.fromJson(respMsg, Map.class);
-            if (CmmnUtil.isEmpty(mResp.get("documents")))
+            if (CmmnUtil.isEmpty(mResp.get("envelopeIds")))
                 throw new EnsException(EnsErrCd.SEND620, String.format("전송요청API 오류. documents 키값이 없습니다. %s", respMsg));
         } catch (EnsException e) {
             errCode = e.getErrCd();
diff --git a/src/main/resources/config/conf-contract.yml b/src/main/resources/config/conf-contract.yml
index bbb64bf..14d0a34 100644
--- a/src/main/resources/config/conf-contract.yml
+++ b/src/main/resources/config/conf-contract.yml
@@ -29,6 +29,7 @@ contract:
               payresult: /iup/kakao/pay-result
     talk:
       host: https://edoc-gw.kakao.com
+      bulksend-batch-unit: 100
       send: /v1/envelopes/{PRODUCT_CODE};POST
       bulksend: /v1/bulk/envelopes/{PRODUCT_CODE};POST
       validToken: /v1/envelopes/{ENVELOPE_ID}/tokens/{TOKEN}/verify;GET