- CharlieAnswered on May 19, 2017 at 04:32 AM
The error message is somewhat a way to inform users about the actual error, hiding it may not really be a feasible feature. However, you can edit form warnings by following this guide: https://www.jotform.com/help/61-How-to-Change-Form-Warnings.
If the goal is to simply hide the error message of a specific field, this can be done by injecting custom CSS codes, and we'll be glad to assist you on that. I believe my colleague, Kiran, has already provided you a CSS code that works?
Also, I'm not sure why you are using minimum and maximum value for vouchers? Are your vouchers specific, similar to coupon codes? Or they are simply numbers and does not really need validation? If I may suggest, using the Input Mask option would also be a good alternative: https://www.jotform.com/help/381-Getting-Started-with-the-basics-of-Input-Masking.
I hope that helps.