Validate bank account field (IBAN )

With the standard available features you could:
a) make the field required
b) set minimum and maximum lengths
c) set a placeholder with an example

For example:

[text* your-IBAN minlength:10 maxlength:34 "GB29 NWBK 6016 1331 9268 19"]

https://contactform7.com/text-fields/
https://en.wikipedia.org/wiki/International_Bank_Account_Number

Hi barnez.

Thanks a lot! Regards