diff --git a/ess/ess-api/src/main/java/cn/axzo/nanopart/ess/api/domain/contract/EssApproveDetail.java b/ess/ess-api/src/main/java/cn/axzo/nanopart/ess/api/domain/contract/EssApproveDetail.java
index 4f27db43..69354154 100644
--- a/ess/ess-api/src/main/java/cn/axzo/nanopart/ess/api/domain/contract/EssApproveDetail.java
+++ b/ess/ess-api/src/main/java/cn/axzo/nanopart/ess/api/domain/contract/EssApproveDetail.java
@@ -46,6 +46,11 @@ public class EssApproveDetail {
      */
     private long approverDeadlineMs;
 
+    /**
+     * 单位id, 动态签署人在没有签署的时候可能为空
+     */
+    private Long ouId;
+
     /**
      * 单位名称, 动态签署人在没有签署的时候可能为空
      */
diff --git a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/controller/CallbackController.java b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/controller/CallbackController.java
index 6dcf3aaf..f4af4fd6 100644
--- a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/controller/CallbackController.java
+++ b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/controller/CallbackController.java
@@ -1,6 +1,7 @@
 package cn.axzo.nanopart.ess.server.ess.controller;
 
 import cn.axzo.framework.domain.web.result.ApiResult;
+import cn.axzo.maokai.api.vo.response.OrganizationalUnitVO;
 import cn.axzo.nanopart.ess.api.EssCallbackApi;
 import cn.axzo.nanopart.ess.api.domain.contract.EssApproveDetail;
 import cn.axzo.nanopart.ess.api.enums.EssContractApproveState;
@@ -23,11 +24,14 @@ import cn.axzo.nanopart.ess.server.ess.OrgManager;
 import cn.axzo.nanopart.ess.server.ess.domain.JsonObjectAsString;
 import cn.axzo.nanopart.ess.server.ess.domain.OrgOpenId;
 import cn.axzo.nanopart.ess.server.ess.domain.PersonOpenId;
+import cn.axzo.nanopart.ess.server.ess.support.EssSupport;
+import cn.axzo.nanopart.ess.server.ess.support.OrgProfiles;
 import com.alibaba.fastjson.JSONObject;
 import lombok.AccessLevel;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.math.NumberUtils;
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.transaction.support.TransactionTemplate;
 import org.springframework.web.bind.annotation.RestController;
@@ -36,6 +40,7 @@ import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Optional;
 
 import static cn.axzo.nanopart.ess.api.request.CallbackRequest.ContractStateChanged;
@@ -60,6 +65,7 @@ class CallbackController implements EssCallbackApi, InitializingBean {
     private final EssContractDao essContractDao;
     private final EssSealPersonDao essSealPersonDao;
     private final TransactionTemplate transactionTemplate;
+    private final EssSupport essSupport;
     private final Map<CallbackType, CallbackHandler> handlers = new HashMap<>();
 
     @Override
@@ -145,6 +151,12 @@ class CallbackController implements EssCallbackApi, InitializingBean {
                 log.warn("unknown contract state: {}", changes.getFlowStatus());
                 return changes.getFlowId();
             }
+            List<Long> ouIds = changes.getFlowApproverInfo().stream()
+                    .map(CallbackRequest.FlowApproverDetail::getProxyOrganizationOpenId)
+                    .map(this::parseLong)
+                    .filter(Objects::nonNull)
+                    .collect(toList());
+            OrgProfiles orgProfiles = OrgProfiles.wrap(essSupport.getOrgProfiles(ouIds));
             List<EssApproveDetail> approveDetails = changes.getFlowApproverInfo().stream()
                     .map(info -> {
                         EssApproveDetail detail = new EssApproveDetail();
@@ -158,8 +170,13 @@ class CallbackController implements EssCallbackApi, InitializingBean {
                         detail.setApproveTimeMs(info.getApproveTime() * 1000);
                         detail.setMessage(info.getApproveMessage());
                         detail.setApproverDeadlineMs(info.getApproverDeadline() * 1000);
-                        detail.setOuName(info.getProxyOrganizationName());
                         detail.setPhoneNumber(info.getPhoneNumber());
+                        Long ouId = parseLong(info.getProxyOrganizationOpenId());
+                        OrganizationalUnitVO org = orgProfiles.find(ouId).orElse(null);
+                        if (org != null) {
+                            detail.setOuName(org.getName());
+                            detail.setOuId(org.getId());
+                        }
                         return detail;
                     })
                     .collect(toList());
@@ -184,6 +201,12 @@ class CallbackController implements EssCallbackApi, InitializingBean {
         });
     }
 
+    private Long parseLong(String value) {
+        if (StringUtils.isBlank(value) || !NumberUtils.isDigits(value))
+            return null;
+        return Long.parseLong(value);
+    }
+
     @Override
     public ApiResult<Object> callback(CallbackRequest request) {
         log.info("ess callback: {}", request);
diff --git a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/support/OrgProfiles.java b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/support/OrgProfiles.java
index 20fc6965..71ab8787 100644
--- a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/support/OrgProfiles.java
+++ b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/support/OrgProfiles.java
@@ -27,6 +27,8 @@ public class OrgProfiles {
     }
 
     public Optional<OrganizationalUnitVO> find(Long ouId) {
+        if (ouId == null)
+            return Optional.empty();
         return profiles.stream()
                 .filter(p -> p.getId().equals(ouId))
                 .findFirst();