Dateformat in form datefield? -> Validation failed: Invalid input

Hi.

I can't find out where to set the dateformat used for validating the datefields in the form plugin.
And the validation message doesn't say what format should be used... so that's not very helpful ;)

Thanks,
Sean.

Not sure if this is what you mean, but we generally use the datetime field, for example in the system/blueprints/pages/default.yaml for setting date+time for pages. It has it's own custom field.

Hi. I'm talking about the validation format of the webform date field... somehow I can't figure out, which format is used there and how I can change it - or how I could output the correct format in the error message. Thx.

I think I never tried using dateformat fields. Can you paste your form md file so I have a quickstart?