Display error for some dates with the MM/YYYY format

[Enri_000]

Hi Blama
Thank you for your answer.
But I think it is necessary to clarify the problem.
If I put a date between 1 and 3 January 2021,...

[Enri_000]

Hi,
Am using
Browser : Chrome Ver 88.0.4324.150 (Build ufficiale) (a 64 bit)
Smart client: version for customer 10.0, for test i have...