Enterprise Item Number with Regular Expression

Hello,

I have a Question to this great new Function  👍   

We already use the Enterprise Item Number (EIN).

WE are editing EIN manually, they have no restrictions on the 3DEXPERIENCE.

We have Physical Product with EIN in different Maturity States.

 

If we now restrict manual user input.

And old EIN numbers do not comply with the new rules.

Can old physical products with EINs still be used?