On the Mobile Requests app, it is possible to handle errors and check the errors occurred during the synchronization.
To see the error list, you must access the Menu and select the option Synchronize. On that screen, you can see the errors by clicking the option on the upper right corner. The option "See Errors" is presented, where it is possible to access the error list.
On the error list, it is possible to check the error message, delete the error and synchronize again.
In the case of a generic error, you are able to delete it, but in case an error in a new request created/edited, you can see the error message and access the Request in order to correct it.