Introduction

What you must know

1. Make sure your system clock is as accurate as possible.
2. Deletion is synchronized! If you delete a task at Google, it will also be delete in Outlook permanently and vice versa.
3. A category in Outlook equals a list at Google.
4. Only the common subset of task properties are synchronized

1: GogTasks uses the system clock to determine where a task has last been changed. If your clock and Google's clock are minutes apart, you may experience synchronization going "the wrong way", leading to lost changes.

2: This may seem like obvious, but it's important to be aware of this to avoid losing tasks. After each synchronization, GogTasks stores the history in a file named Synchistory.josn located in the Windows AppData folder which keeps track on which tasks that at any time have existed on Google. So when a second sync is done, and a task that is stored in this list now is gone from Google, GogTasks interpret this as "Deleted from Google" rather than "Created in Outlook" - hence deleting the Outlook task. The history is also preserved after software upgrades.

Basically - if you're thinking "I'm going to delete all tasks at Google and to a clean re-synch": DONT. This will result in you losing all Outlook tasks (given that this is not the first time ever you sync).

3: GogTasks equals the concept of "Category" with "List" at Google. In the trial mode, only one category is synchronized. Read about how that works here. Furthermore, Outlook allows you to assign multiple categories to a task. This poses some challenges.

4: Google Tasks have in general fewer features than Outlook tasks. In addition to the already mentioned multiple category option, Outlook lets you set a Start date, Priority, Completion Percentage number and more. Google Tasks have none of these. On the other hand, Google does have a Task hierarchy. A task may be a subtask of another task. All these unique features of the individual systems are technically impossible to synchronize. Here is a list of the properties that actually are synced:

• Task text ("Subject" in Outlook)
• Detailed description
• Binary state (completed or not)
• Due date
• Order (flat list)

The latter should probably be commented. The manual order of the tasks are actually kept in sync . If you remove all sort criterias in the Outlook task view, the tasks will appear in the same order at both Google Tasks and Outlook.