diff --git a/test/api/v3/integration/tasks/groups/POST-group_tasks_id_score_direction.test.js b/test/api/v3/integration/tasks/groups/POST-group_tasks_id_score_direction.test.js
index eaa3cf6484..17d653895e 100644
--- a/test/api/v3/integration/tasks/groups/POST-group_tasks_id_score_direction.test.js
+++ b/test/api/v3/integration/tasks/groups/POST-group_tasks_id_score_direction.test.js
@@ -8,10 +8,6 @@ describe('POST /tasks/:id/score/:direction', () => {
   let user; let guild; let member; let member2; let
     task;
 
-  function findAssignedTask (memberTask) {
-    return memberTask.group.id === guild._id;
-  }
-
   beforeEach(async () => {
     const { group, members, groupLeader } = await createAndPopulateGroup({
       groupDetails: {
@@ -30,209 +26,50 @@ describe('POST /tasks/:id/score/:direction', () => {
     task = await user.post(`/tasks/group/${guild._id}`, {
       text: 'test todo',
       type: 'todo',
-      requiresApproval: true,
     });
 
-    await user.post(`/tasks/${task._id}/assign/${member._id}`);
+    await user.post(`/tasks/${task._id}/assign`, [member._id]);
   });
 
-  it('prevents user from scoring a task that needs to be approved', async () => {
-    await user.update({
-      'preferences.language': 'cs',
-    });
-
-    const memberTasks = await member.get('/tasks/user');
-    const syncedTask = find(memberTasks, findAssignedTask);
-    const direction = 'up';
-
-    const response = await member.post(`/tasks/${syncedTask._id}/score/${direction}`);
-
-    expect(response.data.requiresApproval).to.equal(true);
-    expect(response.message).to.equal(t('taskApprovalHasBeenRequested'));
-
-    const updatedTask = await member.get(`/tasks/${syncedTask._id}`);
-
-    await user.sync();
-
-    expect(user.notifications.length).to.equal(3);
-    expect(user.notifications[2].type).to.equal('GROUP_TASK_APPROVAL');
-    expect(user.notifications[2].data.message).to.equal(t('userHasRequestedTaskApproval', {
-      user: member.auth.local.username,
-      taskName: updatedTask.text,
-      taskId: updatedTask._id,
-      direction,
-    }, 'cs')); // This test only works if we have the notification translated
-    expect(user.notifications[2].data.groupId).to.equal(guild._id);
-
-    expect(updatedTask.group.approval.requested).to.equal(true);
-    expect(updatedTask.group.approval.requestedDate).to.be.a('string'); // date gets converted to a string as json doesn't have a Date type
-  });
-
-  it('sends notifications to all managers', async () => {
-    await user.post(`/groups/${guild._id}/add-manager`, {
-      managerId: member2._id,
-    });
-    const memberTasks = await member.get('/tasks/user');
-    const syncedTask = find(memberTasks, findAssignedTask);
-    const direction = 'up';
-
-    await member.post(`/tasks/${syncedTask._id}/score/${direction}`);
-    const updatedTask = await member.get(`/tasks/${syncedTask._id}`);
-    await user.sync();
-    await member2.sync();
-
-    expect(user.notifications.length).to.equal(3);
-    expect(user.notifications[2].type).to.equal('GROUP_TASK_APPROVAL');
-    expect(user.notifications[2].data.message).to.equal(t('userHasRequestedTaskApproval', {
-      user: member.auth.local.username,
-      taskName: updatedTask.text,
-      taskId: updatedTask._id,
-      direction,
-    }));
-    expect(user.notifications[2].data.groupId).to.equal(guild._id);
-
-    expect(member2.notifications.length).to.equal(2);
-    expect(member2.notifications[1].type).to.equal('GROUP_TASK_APPROVAL');
-    expect(member2.notifications[1].data.message).to.equal(t('userHasRequestedTaskApproval', {
-      user: member.auth.local.username,
-      taskName: updatedTask.text,
-      taskId: updatedTask._id,
-      direction,
-    }));
-    expect(member2.notifications[1].data.groupId).to.equal(guild._id);
-  });
-
-  it('errors when approval has already been requested', async () => {
-    const memberTasks = await member.get('/tasks/user');
-    const syncedTask = find(memberTasks, findAssignedTask);
-
-    await member.post(`/tasks/${syncedTask._id}/score/up`);
-
-    const response = await member.post(`/tasks/${syncedTask._id}/score/up`);
-    expect(response.data.requiresApproval).to.equal(true);
-    expect(response.message).to.equal(t('taskRequiresApproval'));
-  });
-
-  it('allows a user to score an approved task', async () => {
-    const memberTasks = await member.get('/tasks/user');
-    const syncedTask = find(memberTasks, findAssignedTask);
-
-    await member.post(`/tasks/${syncedTask._id}/score/up`);
-
-    await user.post(`/tasks/${task._id}/approve/${member._id}`);
-
-    await member.post(`/tasks/${syncedTask._id}/score/up`);
-    const updatedTask = await member.get(`/tasks/${syncedTask._id}`);
-
-    expect(updatedTask.completed).to.equal(true);
-    expect(updatedTask.dateCompleted).to.be.a('string'); // date gets converted to a string as json doesn't have a Date type
-  });
-
-  it('completes master task when single-completion task is completed', async () => {
-    const sharedCompletionTask = await user.post(`/tasks/group/${guild._id}`, {
-      text: 'shared completion todo',
-      type: 'todo',
-      requiresApproval: false,
-      sharedCompletion: 'singleCompletion',
-    });
-
-    await user.post(`/tasks/${sharedCompletionTask._id}/assign/${member._id}`);
-    const memberTasks = await member.get('/tasks/user');
-
-    const syncedTask = find(
-      memberTasks,
-      memberTask => memberTask.group.taskId === sharedCompletionTask._id,
-    );
-
-    await member.post(`/tasks/${syncedTask._id}/score/up`);
+  it('completes single-assigned task', async () => {
+    await member.post(`/tasks/${task._id}/score/up`);
 
     const groupTasks = await user.get(`/tasks/group/${guild._id}?type=completedTodos`);
-    const masterTask = find(groupTasks, groupTask => groupTask._id === sharedCompletionTask._id);
+    const sourceTask = find(groupTasks, groupTask => groupTask._id === task._id);
 
-    expect(masterTask.completed).to.equal(true);
+    expect(sourceTask.completed).to.equal(true);
   });
 
-  it('deletes other assigned user tasks when single-completion task is completed', async () => {
-    const sharedCompletionTask = await user.post(`/tasks/group/${guild._id}`, {
-      text: 'shared completion todo',
-      type: 'todo',
-      requiresApproval: false,
-      sharedCompletion: 'singleCompletion',
+  it('errors when task has already been completed', async () => {
+    await member.post(`/tasks/${task._id}/score/up`);
+
+    await expect(member.post(`/tasks/${task._id}/score/up`)).to.be.rejected.and.to.eventually.eql({
+      code: 401,
+      error: 'NotAuthorized',
+      message: t('sessionOutdated'),
     });
-
-    await user.post(`/tasks/${sharedCompletionTask._id}/assign/${member._id}`);
-    await user.post(`/tasks/${sharedCompletionTask._id}/assign/${member2._id}`);
-    const memberTasks = await member.get('/tasks/user');
-
-    const syncedTask = find(
-      memberTasks,
-      memberTask => memberTask.group.taskId === sharedCompletionTask._id,
-    );
-
-    await member.post(`/tasks/${syncedTask._id}/score/up`);
-
-    const member2Tasks = await member2.get('/tasks/user');
-
-    const syncedTask2 = find(
-      member2Tasks,
-      memberTask => memberTask.group.taskId === sharedCompletionTask._id,
-    );
-
-    expect(syncedTask2).to.equal(undefined);
   });
 
-  it('does not complete master task when not all user tasks are completed if all assigned must complete', async () => {
-    const sharedCompletionTask = await user.post(`/tasks/group/${guild._id}`, {
-      text: 'shared completion todo',
-      type: 'todo',
-      requiresApproval: false,
-      sharedCompletion: 'allAssignedCompletion',
-    });
+  it('does not complete multi-assigned task when not all assignees have completed', async () => {
+    await user.post(`/tasks/${task._id}/assign`, [member2._id]);
 
-    await user.post(`/tasks/${sharedCompletionTask._id}/assign/${member._id}`);
-    await user.post(`/tasks/${sharedCompletionTask._id}/assign/${member2._id}`);
-    const memberTasks = await member.get('/tasks/user');
-
-    const syncedTask = find(
-      memberTasks,
-      memberTask => memberTask.group.taskId === sharedCompletionTask._id,
-    );
-
-    await member.post(`/tasks/${syncedTask._id}/score/up`);
+    await member.post(`/tasks/${task._id}/score/up`);
 
     const groupTasks = await user.get(`/tasks/group/${guild._id}`);
-    const masterTask = find(groupTasks, groupTask => groupTask._id === sharedCompletionTask._id);
+    const sourceTask = find(groupTasks, groupTask => groupTask._id === task._id);
 
-    expect(masterTask.completed).to.equal(false);
+    expect(sourceTask.completed).to.equal(false);
   });
 
-  it('completes master task when all user tasks are completed if all assigned must complete', async () => {
-    const sharedCompletionTask = await user.post(`/tasks/group/${guild._id}`, {
-      text: 'shared completion todo',
-      type: 'todo',
-      requiresApproval: false,
-      sharedCompletion: 'allAssignedCompletion',
-    });
+  it('completes multi-assigned task when all assignees have completed', async () => {
+    await user.post(`/tasks/${task._id}/assign`, [member2._id]);
 
-    await user.post(`/tasks/${sharedCompletionTask._id}/assign/${member._id}`);
-    await user.post(`/tasks/${sharedCompletionTask._id}/assign/${member2._id}`);
-    const memberTasks = await member.get('/tasks/user');
-    const member2Tasks = await member2.get('/tasks/user');
-    const syncedTask = find(
-      memberTasks,
-      memberTask => memberTask.group.taskId === sharedCompletionTask._id,
-    );
-    const syncedTask2 = find(
-      member2Tasks,
-      memberTask => memberTask.group.taskId === sharedCompletionTask._id,
-    );
-
-    await member.post(`/tasks/${syncedTask._id}/score/up`);
-    await member2.post(`/tasks/${syncedTask2._id}/score/up`);
+    await member.post(`/tasks/${task._id}/score/up`);
+    await member2.post(`/tasks/${task._id}/score/up`);
 
     const groupTasks = await user.get(`/tasks/group/${guild._id}?type=completedTodos`);
-    const masterTask = find(groupTasks, groupTask => groupTask._id === sharedCompletionTask._id);
+    const sourceTask = find(groupTasks, groupTask => groupTask._id === task._id);
 
-    expect(masterTask.completed).to.equal(true);
+    expect(sourceTask.completed).to.equal(true);
   });
 });
diff --git a/test/api/v3/integration/tasks/groups/POST-tasks_group_id_assign_user_id.test.js b/test/api/v3/integration/tasks/groups/POST-tasks_group_id_assign_user_id.test.js
index 71b29a1530..2e122e78fc 100644
--- a/test/api/v3/integration/tasks/groups/POST-tasks_group_id_assign_user_id.test.js
+++ b/test/api/v3/integration/tasks/groups/POST-tasks_group_id_assign_user_id.test.js
@@ -39,7 +39,7 @@ describe('POST /tasks/:taskId/assign/:memberId', () => {
   });
 
   it('returns error when task is not found', async () => {
-    await expect(user.post(`/tasks/${generateUUID()}/assign/${member._id}`))
+    await expect(user.post(`/tasks/${generateUUID()}/assign`, [member._id]))
       .to.eventually.be.rejected.and.eql({
         code: 404,
         error: 'NotFound',
@@ -56,7 +56,7 @@ describe('POST /tasks/:taskId/assign/:memberId', () => {
       notes: 1976,
     });
 
-    await expect(user.post(`/tasks/${nonGroupTask._id}/assign/${member._id}`))
+    await expect(user.post(`/tasks/${nonGroupTask._id}/assign`, [member._id]))
       .to.eventually.be.rejected.and.eql({
         code: 401,
         error: 'NotAuthorized',
@@ -67,7 +67,7 @@ describe('POST /tasks/:taskId/assign/:memberId', () => {
   it('returns error when user is not a member of the group', async () => {
     const nonUser = await generateUser();
 
-    await expect(nonUser.post(`/tasks/${task._id}/assign/${member._id}`))
+    await expect(nonUser.post(`/tasks/${task._id}/assign`, [member._id]))
       .to.eventually.be.rejected.and.eql({
         code: 404,
         error: 'NotFound',
@@ -76,7 +76,7 @@ describe('POST /tasks/:taskId/assign/:memberId', () => {
   });
 
   it('returns error when non leader tries to create a task', async () => {
-    await expect(member2.post(`/tasks/${task._id}/assign/${member._id}`))
+    await expect(member2.post(`/tasks/${task._id}/assign`, [member._id]))
       .to.eventually.be.rejected.and.eql({
         code: 401,
         error: 'NotAuthorized',
@@ -84,49 +84,23 @@ describe('POST /tasks/:taskId/assign/:memberId', () => {
       });
   });
 
-  it('allows user to assign themselves (claim)', async () => {
-    await member.post(`/tasks/${task._id}/assign/${member._id}`);
-
-    const groupTask = await user.get(`/tasks/group/${guild._id}`);
-    const memberTasks = await member.get('/tasks/user');
-    const syncedTask = find(memberTasks, findAssignedTask);
-
-    expect(groupTask[0].group.assignedUsers).to.contain(member._id);
-    expect(syncedTask).to.exist;
-  });
-
-  it('sends notifications to group leader and managers when a task is claimed', async () => {
-    await user.post(`/groups/${guild._id}/add-manager`, {
-      managerId: member2._id,
-    });
-    await member.post(`/tasks/${task._id}/assign/${member._id}`);
-    await user.sync();
-    await member2.sync();
-    const groupTask = await user.get(`/tasks/group/${guild._id}`);
-
-    expect(user.notifications.length).to.equal(3); // includes Guild Joined achievement
-    expect(user.notifications[2].type).to.equal('GROUP_TASK_CLAIMED');
-    expect(user.notifications[2].data.taskId).to.equal(groupTask[0]._id);
-    expect(user.notifications[2].data.groupId).to.equal(guild._id);
-    expect(member2.notifications.length).to.equal(2);
-    expect(member2.notifications[1].type).to.equal('GROUP_TASK_CLAIMED');
-    expect(member2.notifications[1].data.taskId).to.equal(groupTask[0]._id);
-    expect(member2.notifications[1].data.groupId).to.equal(guild._id);
-  });
-
   it('assigns a task to a user', async () => {
-    await user.post(`/tasks/${task._id}/assign/${member._id}`);
+    await user.post(`/tasks/${task._id}/assign`, [member._id]);
 
     const groupTask = await user.get(`/tasks/group/${guild._id}`);
+    await member.put('/user', {
+      'preferences.tasks.mirrorGroupTasks': [guild._id],
+    });
     const memberTasks = await member.get('/tasks/user');
     const syncedTask = find(memberTasks, findAssignedTask);
 
     expect(groupTask[0].group.assignedUsers).to.contain(member._id);
+    expect(groupTask[0].group.assignedUsersDetail[member._id]).to.exist;
     expect(syncedTask).to.exist;
   });
 
   it('sends a notification to assigned user', async () => {
-    await user.post(`/tasks/${task._id}/assign/${member._id}`);
+    await user.post(`/tasks/${task._id}/assign`, [member._id]);
     await member.sync();
 
     const groupTask = await user.get(`/tasks/group/${guild._id}`);
@@ -137,20 +111,27 @@ describe('POST /tasks/:taskId/assign/:memberId', () => {
   });
 
   it('assigns a task to multiple users', async () => {
-    await user.post(`/tasks/${task._id}/assign/${member._id}`);
-    await user.post(`/tasks/${task._id}/assign/${member2._id}`);
+    await user.post(`/tasks/${task._id}/assign`, [member._id, member2._id]);
 
     const groupTask = await user.get(`/tasks/group/${guild._id}`);
 
+    await member.put('/user', {
+      'preferences.tasks.mirrorGroupTasks': [guild._id],
+    });
     const memberTasks = await member.get('/tasks/user');
     const member1SyncedTask = find(memberTasks, findAssignedTask);
 
+    await member2.put('/user', {
+      'preferences.tasks.mirrorGroupTasks': [guild._id],
+    });
     const member2Tasks = await member2.get('/tasks/user');
     const member2SyncedTask = find(member2Tasks, findAssignedTask);
 
     expect(groupTask[0].group.assignedUsers).to.contain(member._id);
-    expect(groupTask[0].group.assignedUsers).to.contain(member2._id);
+    expect(groupTask[0].group.assignedUsersDetail[member._id]).to.exist;
     expect(member1SyncedTask).to.exist;
+    expect(groupTask[0].group.assignedUsers).to.contain(member2._id);
+    expect(groupTask[0].group.assignedUsersDetail[member2._id]).to.exist;
     expect(member2SyncedTask).to.exist;
   });
 
@@ -159,13 +140,17 @@ describe('POST /tasks/:taskId/assign/:memberId', () => {
       managerId: member2._id,
     });
 
-    await member2.post(`/tasks/${task._id}/assign/${member._id}`);
+    await member2.post(`/tasks/${task._id}/assign`, [member._id]);
 
     const groupTask = await member2.get(`/tasks/group/${guild._id}`);
+    await member.put('/user', {
+      'preferences.tasks.mirrorGroupTasks': [guild._id],
+    });
     const memberTasks = await member.get('/tasks/user');
     const syncedTask = find(memberTasks, findAssignedTask);
 
     expect(groupTask[0].group.assignedUsers).to.contain(member._id);
+    expect(groupTask[0].group.assignedUsersDetail[member._id]).to.exist;
     expect(syncedTask).to.exist;
   });
 });
diff --git a/test/api/v3/integration/tasks/groups/POST-tasks_task_id_unassign.test.js b/test/api/v3/integration/tasks/groups/POST-tasks_task_id_unassign.test.js
index 83d67246d6..117c9f760f 100644
--- a/test/api/v3/integration/tasks/groups/POST-tasks_task_id_unassign.test.js
+++ b/test/api/v3/integration/tasks/groups/POST-tasks_task_id_unassign.test.js
@@ -37,7 +37,7 @@ describe('POST /tasks/:taskId/unassign/:memberId', () => {
       notes: 1976,
     });
 
-    await user.post(`/tasks/${task._id}/assign/${member._id}`);
+    await user.post(`/tasks/${task._id}/assign`, [member._id]);
   });
 
   it('returns error when task is not found', async () => {
@@ -96,7 +96,7 @@ describe('POST /tasks/:taskId/unassign/:memberId', () => {
   });
 
   it('unassigns a user and only that user from a task', async () => {
-    await user.post(`/tasks/${task._id}/assign/${member2._id}`);
+    await user.post(`/tasks/${task._id}/assign`, [member2._id]);
 
     await user.post(`/tasks/${task._id}/unassign/${member._id}`);
 
@@ -105,6 +105,9 @@ describe('POST /tasks/:taskId/unassign/:memberId', () => {
     const memberTasks = await member.get('/tasks/user');
     const member1SyncedTask = find(memberTasks, findAssignedTask);
 
+    await member2.put('/user', {
+      'preferences.tasks.mirrorGroupTasks': [guild._id],
+    });
     const member2Tasks = await member2.get('/tasks/user');
     const member2SyncedTask = find(member2Tasks, findAssignedTask);
 
@@ -130,20 +133,7 @@ describe('POST /tasks/:taskId/unassign/:memberId', () => {
     expect(syncedTask).to.not.exist;
   });
 
-  it('allows a user to unassign themselves', async () => {
-    await member.post(`/tasks/${task._id}/unassign/${member._id}`);
-
-    const groupTask = await user.get(`/tasks/group/${guild._id}`);
-    const memberTasks = await member.get('/tasks/user');
-    const syncedTask = find(memberTasks, findAssignedTask);
-
-    expect(groupTask[0].group.assignedUsers).to.not.contain(member._id);
-    expect(syncedTask).to.not.exist;
-  });
-
-  // @TODO: Which do we want? The user to unassign themselves or not. This test was in
-  // here, but then we had a request to allow to unaissgn.
-  xit('returns error when non leader tries to unassign their a task', async () => {
+  it('returns error when non leader tries to unassign a task', async () => {
     await expect(member.post(`/tasks/${task._id}/unassign/${member._id}`))
       .to.eventually.be.rejected.and.eql({
         code: 401,
diff --git a/test/api/v3/integration/tasks/groups/PUT-group_task_id.test.js b/test/api/v3/integration/tasks/groups/PUT-group_task_id.test.js
index abfd5ae629..330983c70c 100644
--- a/test/api/v3/integration/tasks/groups/PUT-group_task_id.test.js
+++ b/test/api/v3/integration/tasks/groups/PUT-group_task_id.test.js
@@ -1,4 +1,3 @@
-import { find } from 'lodash';
 import {
   createAndPopulateGroup, translate as t,
 } from '../../../../../helpers/api-integration/v3';
@@ -11,10 +10,6 @@ describe('PUT /tasks/:id', () => {
   let habit;
   let todo;
 
-  function findAssignedTask (memberTask) {
-    return memberTask.group.id === guild._id;
-  }
-
   beforeEach(async () => {
     const { group, members, groupLeader } = await createAndPopulateGroup({
       groupDetails: {
@@ -44,8 +39,7 @@ describe('PUT /tasks/:id', () => {
       notes: 1976,
     });
 
-    await user.post(`/tasks/${habit._id}/assign/${member._id}`);
-    await user.post(`/tasks/${habit._id}/assign/${member2._id}`);
+    await user.post(`/tasks/${habit._id}/assign`, [member._id, member2._id]);
   });
 
   it('updates a group task', async () => {
@@ -56,28 +50,6 @@ describe('PUT /tasks/:id', () => {
     expect(savedHabit.notes).to.eql('some new notes');
   });
 
-  it('updates a group task - approval is required', async () => {
-    // allow to manage
-    await user.post(`/groups/${guild._id}/add-manager`, {
-      managerId: member._id,
-    });
-
-    // change the habit
-    habit = await member.put(`/tasks/${habit._id}`, {
-      text: 'new text!',
-      requiresApproval: true,
-    });
-
-    const memberTasks = await member2.get('/tasks/user');
-    const syncedTask = find(memberTasks, memberTask => memberTask.group.taskId === habit._id);
-
-    // score up to trigger approval
-    const response = await member2.post(`/tasks/${syncedTask._id}/score/up`);
-
-    expect(response.data.requiresApproval).to.equal(true);
-    expect(response.message).to.equal(t('taskApprovalHasBeenRequested'));
-  });
-
   it('member updates a group task value - not allowed', async () => {
     // change the todo
     await expect(member.put(`/tasks/${habit._id}`, {
@@ -120,7 +92,7 @@ describe('PUT /tasks/:id', () => {
       ],
     });
 
-    await user.post(`/tasks/${habit._id}/assign/${member._id}`);
+    await user.post(`/tasks/${habit._id}/assign`, [member._id]);
 
     // change the checklist text
     habit = await user.put(`/tasks/${habit._id}`, {
@@ -137,63 +109,4 @@ describe('PUT /tasks/:id', () => {
 
     expect(habit.checklist.length).to.eql(2);
   });
-
-  it('updates the linked tasks', async () => {
-    await user.put(`/tasks/${habit._id}`, {
-      text: 'some new text',
-      up: false,
-      down: false,
-      notes: 'some new notes',
-    });
-
-    const memberTasks = await member.get('/tasks/user');
-    const syncedTask = find(memberTasks, findAssignedTask);
-
-    expect(syncedTask.text).to.eql('some new text');
-    expect(syncedTask.up).to.eql(false);
-    expect(syncedTask.down).to.eql(false);
-  });
-
-  it('updates the linked tasks for all assigned users', async () => {
-    await user.put(`/tasks/${habit._id}`, {
-      text: 'some new text',
-      up: false,
-      down: false,
-      notes: 'some new notes',
-    });
-
-    const memberTasks = await member.get('/tasks/user');
-    const syncedTask = find(memberTasks, findAssignedTask);
-
-    const member2Tasks = await member2.get('/tasks/user');
-    const member2SyncedTask = find(member2Tasks, findAssignedTask);
-
-    expect(syncedTask.text).to.eql('some new text');
-    expect(syncedTask.up).to.eql(false);
-    expect(syncedTask.down).to.eql(false);
-
-    expect(member2SyncedTask.text).to.eql('some new text');
-    expect(member2SyncedTask.up).to.eql(false);
-    expect(member2SyncedTask.down).to.eql(false);
-  });
-
-  it('updates the linked tasks', async () => {
-    await user.post(`/groups/${guild._id}/add-manager`, {
-      managerId: member2._id,
-    });
-
-    await member2.put(`/tasks/${habit._id}`, {
-      text: 'some new text',
-      up: false,
-      down: false,
-      notes: 'some new notes',
-    });
-
-    const memberTasks = await member.get('/tasks/user');
-    const syncedTask = find(memberTasks, findAssignedTask);
-
-    expect(syncedTask.text).to.eql('some new text');
-    expect(syncedTask.up).to.eql(false);
-    expect(syncedTask.down).to.eql(false);
-  });
 });
diff --git a/test/api/v3/integration/user/POST-user_class_cast_spellId.test.js b/test/api/v3/integration/user/POST-user_class_cast_spellId.test.js
index df7676b945..18f2c19685 100644
--- a/test/api/v3/integration/user/POST-user_class_cast_spellId.test.js
+++ b/test/api/v3/integration/user/POST-user_class_cast_spellId.test.js
@@ -145,15 +145,12 @@ describe('POST /user/class/cast/:spellId', () => {
       text: 'todo group',
       type: 'todo',
     });
-    await groupLeader.post(`/tasks/${groupTask._id}/assign/${groupLeader._id}`);
-    const memberTasks = await groupLeader.get('/tasks/user');
-    const syncedGroupTask = find(memberTasks, memberTask => memberTask.group.id === group._id);
-
+    await groupLeader.post(`/tasks/${groupTask._id}/assign`, [groupLeader._id]);
     await groupLeader.update({ 'stats.class': 'rogue', 'stats.lvl': 11 });
     await sleep(0.5);
     await groupLeader.sync();
 
-    await expect(groupLeader.post(`/user/class/cast/pickPocket?targetId=${syncedGroupTask._id}`))
+    await expect(groupLeader.post(`/user/class/cast/pickPocket?targetId=${groupTask._id}`))
       .to.eventually.be.rejected.and.eql({
         code: 400,
         error: 'BadRequest',
@@ -279,7 +276,10 @@ describe('POST /user/class/cast/:spellId', () => {
       type: 'todo',
     });
     await user.update({ 'stats.class': 'healer', 'stats.mp': 200, 'stats.lvl': 15 });
-    await user.post(`/tasks/${groupTask._id}/assign/${user._id}`);
+    await user.post(`/tasks/${groupTask._id}/assign`, [user._id]);
+    await user.put('/user', {
+      'preferences.tasks.mirrorGroupTasks': [guild._id],
+    });
 
     await user.post('/user/class/cast/brightness');
     await user.sync();
diff --git a/test/api/v3/integration/user/POST-user_reset.test.js b/test/api/v3/integration/user/POST-user_reset.test.js
index 5d750fde98..a3c00a90a3 100644
--- a/test/api/v3/integration/user/POST-user_reset.test.js
+++ b/test/api/v3/integration/user/POST-user_reset.test.js
@@ -100,11 +100,14 @@ describe('POST /user/reset', () => {
       text: 'todo group',
       type: 'todo',
     });
-    await user.post(`/tasks/${groupTask._id}/assign/${user._id}`);
+    await user.post(`/tasks/${groupTask._id}/assign`, [user._id]);
 
     await user.post('/user/reset');
     await user.sync();
 
+    await user.put('/user', {
+      'preferences.tasks.mirrorGroupTasks': [guild._id],
+    });
     const memberTasks = await user.get('/tasks/user');
 
     const syncedGroupTask = find(memberTasks, memberTask => memberTask.group.id === guild._id);
diff --git a/test/api/v4/user/POST-user_class_cast_spellId.test.js b/test/api/v4/user/POST-user_class_cast_spellId.test.js
index b9382bba3d..75d0cb35fc 100644
--- a/test/api/v4/user/POST-user_class_cast_spellId.test.js
+++ b/test/api/v4/user/POST-user_class_cast_spellId.test.js
@@ -130,7 +130,7 @@ describe('POST /user/class/cast/:spellId', () => {
       text: 'todo group',
       type: 'todo',
     });
-    await groupLeader.post(`/tasks/${groupTask._id}/assign/${groupLeader._id}`);
+    await groupLeader.post(`/tasks/${groupTask._id}/assign`, [groupLeader._id]);
     const memberTasks = await groupLeader.get('/tasks/user');
     const syncedGroupTask = find(memberTasks, memberTask => memberTask.group.id === group._id);
 
@@ -247,7 +247,7 @@ describe('POST /user/class/cast/:spellId', () => {
       type: 'todo',
     });
     await user.update({ 'stats.class': 'healer', 'stats.mp': 200, 'stats.lvl': 15 });
-    await user.post(`/tasks/${groupTask._id}/assign/${user._id}`);
+    await user.post(`/tasks/${groupTask._id}/assign`, [user._id]);
 
     await user.post('/user/class/cast/brightness');
     await user.sync();
diff --git a/test/api/v4/user/POST-user_reset.test.js b/test/api/v4/user/POST-user_reset.test.js
index ced9126eb2..c96e30f93a 100644
--- a/test/api/v4/user/POST-user_reset.test.js
+++ b/test/api/v4/user/POST-user_reset.test.js
@@ -100,11 +100,14 @@ describe('POST /user/reset', () => {
       text: 'todo group',
       type: 'todo',
     });
-    await user.post(`/tasks/${groupTask._id}/assign/${user._id}`);
+    await user.post(`/tasks/${groupTask._id}/assign`, [user._id]);
 
     await user.post('/user/reset');
     await user.sync();
 
+    await user.put('/user', {
+      'preferences.tasks.mirrorGroupTasks': [guild._id],
+    });
     const memberTasks = await user.get('/tasks/user');
 
     const syncedGroupTask = find(memberTasks, memberTask => memberTask.group.id === guild._id);
diff --git a/website/server/libs/spells.js b/website/server/libs/spells.js
index 9319205ab4..6132ec5f26 100644
--- a/website/server/libs/spells.js
+++ b/website/server/libs/spells.js
@@ -22,7 +22,6 @@ async function castTaskSpell (res, req, targetId, user, spell, quantity = 1) {
 
   const task = await Tasks.Task.findOne({
     _id: targetId,
-    userId: user._id,
   }).exec();
   if (!task) throw new NotFound(res.t('messageTaskNotFound'));
   if (task.challenge.id) throw new BadRequest(res.t('challengeTasksNoCast'));