Not recognizing the stock in the account
I work with several different data files, when I update them some stocks are not recognized as a current holding, but only in some of the data files is this an issue. Example when a specific company pays a dividend ie OXY one data file will recognize it as Occidental and another does not from the same brokerage co. If it was only one stock wouldn't be that big of a deal but it is multiple stocks and it happens with all activity associated with certain stocks so I end up having to key in lots of data to keep thing in balance ....etc. What is the fix, I can not delete the stock and start over as I have years of history that I do not want to recreate. Anyone else dealing with this issue and have solutions? Appreciate any help and or how to prevent this from happening in the future.