When you're in need of help—whether you're puzzled by perspectives, having trouble syncing, or experiencing another issue with OmniFocus—it's good to know that the Support Humans at The Omni Group are available to lend you a hand.
The OmniFocus Website
The Official Forums
The Omni Group maintains online forums for all of our products, and you're invited! Come share your questions and ideas with other users and Omni staff. This is a great place for exchanging ideas with other like-minded folk, but it isn't an official tech support channel; for help from our helpful Support Humans, see below.
If you're stuck, if you have a good idea for the next version of OmniFocus, or if you just want to let us know how we're doing, go ahead and send us an email. Choose Send Feedback from Settings (reached from the secret bar above the sidebar or home screen) to conjure up a message addressed to us. We take support pretty seriously, so you can expect a prompt response actually typed by human hands.
For detailed information about what has changed in each minor version of OmniFocus, check out the release notes in Settings.
Here are a few tips you can try with OmniFocus's own built in self-help features:
Finding Misplaced Items
Try using the Completed and Changed perspectives to track down errant actions. You can find them by toggling to view All Perspectives in the secret bar (drag down in the sidebar or home screen to reveal it).
Search for text in the missing items using the Here, Remaining, and Everything filters to narrow your results.
Sync all the things regularly! This reduces sync wait times and generally improves speed and performance across the board.
Delete unneeded attachments to lessen the sync load and disc space footprint of your database. If you have OmniFocus for Mac, we recommend curating your attachments using the Attachment List to help easily spot the ones you don't need.
Resolving Sync Conflicts
If you're sure what you have locally is what you want, you can Replace the Server Database when prompted (usually when you're switching server locations or you've spent a long time offline) to get everything back in sync.
This can't be reversed, so you'll want to choose carefully: if you are sure the data on your iOS device is more recent, choose to keep your device data. If you are sure the data on the server is more recent (such as that synced from a Mac or another iOS device), choose to keep the server data. If you are unsure about the best choice, please contact us before choosing!
Again, if you're unsure (about this, or anything else OmniFocus-related), please contact Omni support! We're here to help—it's what we do.