The Task Succession Alerts functionality is currently available on the Mac and Windows platforms.

• Circular dependency - when tasks are already liked together;
• Task chain dependency - when tasks are already linked through another task chain;
• Dependency to the task itself - when making a task a predecessor of itself;
• Dependency between a summary task and a subtask - when linking a summary task to one of its subtasks;
• Linking predecessor task twice to the same successor;
• Adding invalid predecessor value;
• SF and FF dependency for a summary task;
• Linking non-existent tasks;
• Adding invalid lead/lag time value.

To make a task not be a summary task, first select all the subtasks then go to menu Task and click Outdent.

We are sorry but there's no way to hide the links on the Gantt Chart without removing the predecessors/successors from the tasks.

To unlink two tasks, please delete or uncheck the Task ID from Predecessors/Successors column, or select both tasks and go to menu Task - Unlink. To change the Start date for a task, please make sure that the % complete is set to 0.

FS is an abbreviation for Finish to Start dependency. It forces a task to start only when/after its predecessor/successor has finished; predecessor/successor finishes and the other starts.

To add Successor to tasks, go to Gantt Chart view and in Successors field insert the Task IDs or select the successors from the field's drop-down list.

To add a start to finish dependency between tasks, you need to establish a Start to Finish dependency in the Predecessors or Successors column or in Task Information dialog under the Predecessors tab.

To make a Start-to-Start relationship between tasks, you need to establish a Start to Start dependency in the Predecessors or Successors column or in Task Information dialog under the Predecessors tab. For example, you have task ID 1 and task ID 2 and you want to establish a Start-to-Start dependency. In task ID 2 on Predecessors columns write 1SS.

There are two ways to establish a relationship between two tasks or link two tasks:

1. Click on the task that will be dependent and go to Task Information – Predecessors – select the task that will dictate the relationship and the type of link between them – click OK.
2. Enter the ID of the task in the Predecessors/Successors field. You can enter the ID of the predecessor/successor and this automatically creates a Finish-Start link from the predecessor/successor to the current task or you can enter the ID of the predecessor/successor followed by the link type - a value in {SS, SF, FF}.

The Start to Finish dependency forces a task to finish only when/after its predecessor/successor start. If a nonzero lag is present, it is added to the Finish date.

The Start to Start dependency forces a task to begin only at the same moment with its predecessor/successor or after its predecessor/successor started; the start of the predecessor/successor determines when the other starts. If a nonzero lag is present, it is added to the Start date.

The Finish to Finish dependency forces a task to finish only when/after its predecessor/successor is completed; both tasks finish at the same time. If a nonzero lag is present, it is added to the Finish date.For instance, a value of 4FF+2 days in the Predecessors column signifies a Finish - Finish type link with a lag of two days, where the current task has the task with ID = 4 as its predecessor.

The Finish to Start dependency is the default link type applied. It forces a task to start only when/after its predecessor/successor has finished; predecessor/successor finishes and the other starts.A link can also have a "lag" value specified. Finish-to-start is the most common dependency type. If a nonzero lag is present, it is added to the Start date; otherwise, the task starts immediately after the predecessor/successor is completed. A positive lag value will create a gap between the finish of one task and the start of another.

The “Split Tasks” functionality, as the name describes it, allows the possibility to interrupt work on a task, due to cases such as an unplanned event or even a task reprioritization, you can split the task so that part of it starts later in the schedule.

You can change the duration of a task by resizing it. In order to do that, follow the steps below:

1. Move your mouse the end portion of the bar and you should notice a specific icon of the mouse.
2. Hold down the mouse and move the virtually displayed taskbar to the right if you want to increase the duration of the task, or to the left if you want to shorten the duration of your task.
3. Release the mouse when you are satisfied to the resulted duration of your task or length of its corresponding taskbar.

Also you can change the duration of the tasks by typing another value in the duration cell for the desired tasks.

To have a task begin X number of days before another task, you need a lead time.Lead time is overlap between tasks that have a dependency.Example: If a task can start when its predecessor is half-finished, you can specify a finish-to-start dependency with a lead time for the successor task. You enter lead time as a negative value.

• Let’s say you have two tasks. Task ID 1 with a duration of 5 days and Task ID 2 with a duration of 3 days. You want that task ID 2 starts with 2 days before task ID 1 ends. In the Predecessors field, we establish a Finish-To-Start dependency and set the lead time -2days: 1FS-2days.

To change a task’s duration at any time to reflect the actual amount of time it needs:

1. Go to the Gantt Chart View.
2. In the Duration column for the task, type the duration in minutes (m), hours (h), days (d), weeks (w), or months (mo).
3. If the new duration is an estimate, type a question mark (?) after it.
4. Press Enter.

Be careful about changing a duration by using the Start and Finish columns, especially for linked tasks or automatically scheduled tasks. Your changes might conflict with the task dependencies or task constraints Project is tracking, which can throw a carefully constructed schedule off track.