How to Fix Adobe Acrobat Sync Error When Resolving PDF Comments
Question details
Users encounter a sync failure when attempting to resolve specific comments within a shared PDF file.

- Product
- Adobe Acrobat
- Device & OS
- macOS
- Scenario
- Resolving comments made by other users in a shared PDF document for collaboration.
- Observed behavior
- Acrobat displays the error message 'We were not able to sync your action. Please try again' and refuses to resolve the comment if it contains a user mention in the main body.
Ensure you have the necessary editing permissions for the shared PDF and identify if the specific comment you are trying to resolve contains an @mention.
Remove the Mention Before Resolving the Comment
Since the synchronization bug is triggered specifically by @mentions in the comment body, manually deleting the mention allows the resolve action to complete successfully.
This is a known issue on macOS where Adobe Acrobat struggles to process the resolution status of comments containing mentions made by other users. Reinstalling the application will not fix this bug.
Open the PDF in Adobe Acrobat and navigate to the Comments pane on the right side of the screen to find the specific comment you wish to resolve.
Click the three dots (More Options) on the comment and select 'Edit'. Highlight and delete the @mention from the text.
Save the edited comment, then click 'Resolve' or the checkmark icon. The synchronization action should now complete without displaying the error.

Reply Instead of Resolving
If you cannot or prefer not to edit the original author's comment, use the reply function to indicate completion.
Manage PDF Comments Seamlessly with WPS Office
Avoid frustrating synchronization bugs when collaborating on shared documents. WPS Office provides a robust and reliable PDF editor that allows you to review, annotate, and resolve comments without interruption.
- 1. Open your PDF: Launch WPS Office and open your shared PDF document.
- 2. Access the comment tools: Navigate to the 'Comment' tab located on the top ribbon to view all document annotations.
- 3. Manage feedback: Click on any comment in the side panel to easily reply, edit, or resolve it without encountering sync failures.
- 4. Save and share: Save your changes locally or upload the document to WPS Cloud for seamless real-time collaboration.

Frequently Asked Questions
Why does Adobe Acrobat say 'We were not able to sync your action'?
This error occurs due to a known bug in Adobe Acrobat on macOS. It is specifically triggered when a user attempts to resolve a comment made by someone else that includes an @mention in the main body of the text.
Will reinstalling Adobe Acrobat fix this comment sync error?
No, reinstalling Adobe Acrobat typically does not resolve this issue. The problem stems from how the software processes mentions within comments, which requires an official update from Adobe.
Can I resolve my own comments if they contain mentions?
Yes, the sync error primarily affects comments created by other users. You should generally be able to resolve your own comments, even if they contain @mentions, without encountering the error.
Is there a permanent fix for this Acrobat sync bug?
Currently, there is no permanent built-in fix. Users must rely on workarounds, such as manually deleting the @mention from the comment before clicking resolve, while waiting for a future software update.




