Job Central is unreliable. It frequently does not save estimates that are inputted for a particular job. Or it saves the estimate elsewhere in the software, but not in the Job Central window. Because of this, our project managers re-enter the estimate (thinking it didn't save), only to find out later that it did save in other parts of Job Cost and now the estimate is double or triple what it should be. This is a major problem. Job Central is extremely unreliable, and we do not know why Sage has not fixed it after all these years of customers complaining.