Customer changed

Hello guys,

I have a question and would like help from you.

I wonder if there is any table that records the dates that customers have changed.

I created a program to run a daily job and send customers who have been changed to a file .txt .

And it be sending all users every day, I was sent so that only the user that have changed.

Who knows the table that stores this time of change?

Thanks.

Helpful Answer