If may see the following error message after installing linksync for WooCommerce:
Alert: File permission on wp-content will prevent linksync from syncing and/or functioning correctly
This generally suggest that the wp-content/plugins/linksync folder for your WordPress installation does not allow write access by the Owner of the folder, and can lead to linksync not syncing correctly as a result.
Please have your server administrator update the permissions for wp-content/plugins/linksync to be 755.
More information on recommended permissions for the wp-content folder can be found at https://codex.wordpress.org/Changing_File_Permissions