Hi Michael

Thank you for your advice.

The suggestion to use "Name index unique" doesn't work because I want a rejection message that precedes when the save command is executed.

Actually, the idea to solve this problem is according to the idea of ​​you and Peter, which is to display a number of names that are almost the same.
It's just that I myself couldn't make the logic programming myself.

Do you have that logic programming?

thank you