Customer Account Number - Elephant

Using my Dolibarr CRM/SRM Modules
1

With the previous env when I was testing, Elephant used to work with below code in Field.

{yy}{mm}{000000}

Now, it says, Error on mask.

Can you please share your views if you know why?

Kind regards,
J

2

On which dolibarr version ?
I do not experience trouble with the mask {yy}{mm}{000000}