I have noticed that one of my forms show a message saying that someone is entering data at the same time I was and asks me if I want to save, ignore or post on the clipboard the information I have just typed in. I don't know why is asking me this randonly and most of the time the data entered is not transported to the table and I end up lossing the data. How can I fix it?

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Reply from Richard Rost:

If you start editing a record, and another user starts editing a record before YOUR data is saved to the table, you have a record locking conflict. You're going to either have to save your data (overwriting their changes) or keep their data and either DROP your changes or save them to the clipboard.