diff --git a/module/task/lang/de.php b/module/task/lang/de.php
index 059a800bb7..458357db59 100644
--- a/module/task/lang/de.php
+++ b/module/task/lang/de.php
@@ -289,7 +289,6 @@ $lang->task->error->alreadyStarted    = 'You cannot start this task, because it
 $lang->task->error->realStartedEmpty  = '"Real Started" should not be empty.';
 $lang->task->error->finishedDateEmpty = '"Finished Date" should not be empty.';
 $lang->task->error->finishedDateSmall = '"Finished Date" should be > "Real Started"';
-$lang->task->error->alreadyConsumed   = 'The currently selected parent task has been consumed.';
 $lang->task->error->date              = 'The date should be <= today.';
 $lang->task->error->leftEmptyAB       = 'When the task status is %s, "Hours Left" cannot be 0';
 $lang->task->error->leftEmpty         = 'Task#%sWhen the task status is %s, "Left" cannot be 0';
diff --git a/module/task/lang/en.php b/module/task/lang/en.php
index b09b136114..e3320f9956 100755
--- a/module/task/lang/en.php
+++ b/module/task/lang/en.php
@@ -289,7 +289,6 @@ $lang->task->error->alreadyStarted    = 'You cannot start this task, because it
 $lang->task->error->realStartedEmpty  = '"Real Started" should not be empty.';
 $lang->task->error->finishedDateEmpty = '"Finished Date" should not be empty.';
 $lang->task->error->finishedDateSmall = '"Finished Date" should be > "Real Started"';
-$lang->task->error->alreadyConsumed   = 'The currently selected parent task has been consumed.';
 $lang->task->error->date              = 'The date should be <= today.';
 $lang->task->error->leftEmptyAB       = 'When the task status is %s, "Hours Left" cannot be 0';
 $lang->task->error->leftEmpty         = 'Task#%sWhen the task status is %s, "Left" cannot be 0';
diff --git a/module/task/lang/fr.php b/module/task/lang/fr.php
index 7b65cbd865..00add894a9 100644
--- a/module/task/lang/fr.php
+++ b/module/task/lang/fr.php
@@ -289,7 +289,6 @@ $lang->task->error->alreadyStarted    = 'You cannot start this task, because it
 $lang->task->error->realStartedEmpty  = '"Real Started" should not be empty.';
 $lang->task->error->finishedDateEmpty = '"Finished Date" should not be empty.';
 $lang->task->error->finishedDateSmall = '"Finished Date" should be > "Real Started"';
-$lang->task->error->alreadyConsumed   = 'The currently selected parent task has been consumed.';
 $lang->task->error->date              = 'The date should be <= today.';
 $lang->task->error->leftEmptyAB       = 'When the task status is %s, "Hours Left" cannot be 0';
 $lang->task->error->leftEmpty         = 'Task#%sWhen the task status is %s, "Left" cannot be 0';
diff --git a/module/task/lang/vi.php b/module/task/lang/vi.php
index 4519193445..ebdf8856db 100644
--- a/module/task/lang/vi.php
+++ b/module/task/lang/vi.php
@@ -230,7 +230,6 @@ $lang->task->error->alreadyStarted    = 'You cannot start this task, because it
 $lang->task->error->realStartedEmpty  = '"Real Started" should not be empty.';
 $lang->task->error->finishedDateEmpty = '"Finished Date" should not be empty.';
 $lang->task->error->finishedDateSmall = '"Finished Date" should be > "Real Started"';
-$lang->task->error->alreadyConsumed   = 'The currently selected parent task has been consumed.';
 $lang->task->error->date              = 'The date should be <= today.';
 
 /* Report. */
diff --git a/module/task/lang/zh-cn.php b/module/task/lang/zh-cn.php
index 1d3b4dfc35..31408527f8 100755
--- a/module/task/lang/zh-cn.php
+++ b/module/task/lang/zh-cn.php
@@ -289,7 +289,6 @@ $lang->task->error->alreadyStarted    = '此任务已被启动，不能重复启
 $lang->task->error->realStartedEmpty  = '实际开始不能为空';
 $lang->task->error->finishedDateEmpty = '实际完成不能为空';
 $lang->task->error->finishedDateSmall = '实际完成不能小于实际开始';
-$lang->task->error->alreadyConsumed   = '当前选中的父任务已有消耗。';
 $lang->task->error->date              = '日期不能大于今天';
 $lang->task->error->leftEmptyAB       = '任务状态为%s时，预计剩余不能为0';
 $lang->task->error->leftEmpty         = 'Task#%s任务状态为%s时，剩余不能为0';
diff --git a/module/task/model.php b/module/task/model.php
index 4bda9d4ca4..35a028e2b8 100755
--- a/module/task/model.php
+++ b/module/task/model.php
@@ -718,17 +718,6 @@ class taskModel extends model
 
         $oldTask = $this->getByID($taskID);
 
-        /* When the selected parent task is a common task and has consumption, select other parent tasks. */
-        if($task->parent > 0)
-        {
-            $taskConsumed = $this->dao->select('consumed')->from(TABLE_TASK)->where('id')->eq($task->parent)->andWhere('parent')->eq(0)->fetch('consumed');
-            if($taskConsumed > 0)
-            {
-                dao::$errors[] = $this->lang->task->error->alreadyConsumed;
-                return false;
-            }
-        }
-
         if($task->consumed < $oldTask->consumed)
         {
             dao::$errors[] = $this->lang->task->error->consumedSmall;
@@ -1944,6 +1933,7 @@ class taskModel extends model
             ->where('deleted')->eq(0)
             ->andWhere('parent')->le(0)
             ->andWhere('status')->notin('cancel,closed')
+            ->andWhere('consumed')->eq('0')
             ->andWhere('execution')->eq($executionID)
             ->beginIF($append)->orWhere('id')->in($append)->fi()
             ->fetchPairs();