We want following to be accompalished and hope Gravity forms can help us achieve this:
We want to have a main form with just a field to input a product serial number. When user fills the number and submits/next, the entered number should be compared with a predefined list and if the entered number macthes to the ones defined in the list, it should show another form with multiple fields. Otherwise, the form should display a message stating that the entered serial number is not valid.
Now, can we define such a list of alphanumeric numbers and let gravity form check it and then based on it either display the other form or display error message.
A quick reply will be highly appreciated.