diff --git a/features/udm_user/service/service_udm_sub_user.go b/features/udm_user/service/service_udm_sub_user.go
index 78f1adae..c66f790b 100644
--- a/features/udm_user/service/service_udm_sub_user.go
+++ b/features/udm_user/service/service_udm_sub_user.go
@@ -93,6 +93,9 @@ func (r *ServiceUdmSubUser) Inserts(neID string, subUser model.UdmSubUser, num s
 			newIP := strings.Join(parts, ".")
 			subUser.StaticIp = newIP
 		}
+
+		subUser.EpsDat = fmt.Sprintf("%s,%s,%s,%s,%s,%s,2,%s,%s", subUser.EpsFlag, subUser.EpsOdb, subUser.HplmnOdb, subUser.Ard, subUser.Epstpl, subUser.ContextId, subUser.ApnContext, subUser.StaticIp)
+
 		arr = append(arr, subUser)
 	}