I agree that WHEN you make even a small mistake on entering data like date, vendor name I have found No easy way to fix it. That is why I call Quicken a unforegiving system. I have looked at other companies who say they have it but I don't like their format and I have been a quicken user over 20 years.
I talked to customer service today and said PLEASE add a redo button so if you made a mistake you push it and it goes back to the last transaction just like you have on windows products.
Now you have to sometime do deep dive research to even find the data error. For instance if I entered the year wrong and do not even know what year it was all I can do is search under the vendor name and just hope I can find it and correct it.
Customer service says they do not have a redo button but will pass my comment along. Anyone else found an easier solution or agree a redo button would be a very nice suggestion as I enter most of my data vs just download it from the bank.