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Single-use Form

  1. Hi! Is this scenario possible with Gravity forms? We give a personal link to the form to a customer. He/She will fill in his address and submit it to us so that we can send a voucher through snail mail. That form (or link to the form) cannot be used again by the said customer to avoid multiple vouchers. How do we make sure that the form is used once per person?
    Thanks!

    Posted 9 years ago on Monday February 6, 2012 | Permalink
  2. You could simply set the "no duplicates" option on the email field to prevent duplicate submissions from the same email address. This only rejects duplicate email addresses though and doesn't do any IP blocking, etc.

    screenshot: http://bit.ly/wN8s6m

    Posted 9 years ago on Monday February 6, 2012 | Permalink
  3. We want to distribute verification codes to persons who can use the form exclusively. We can enable the "no duplicate" option on a text/number field but how do we automatically validate if those codes are indeed ours?

    Posted 9 years ago on Tuesday February 7, 2012 | Permalink
  4. You would need to use the "gform_validation" hook to create a custom validation routine that validates the entered code against the codes that you've stored somewhere.

    http://www.gravityhelp.com/documentation/page/Gform_validation

    Posted 9 years ago on Tuesday February 7, 2012 | Permalink
  5. Ok. Thanks for the help!

    Posted 9 years ago on Tuesday February 7, 2012 | Permalink
  6. Sure, good luck with it.

    Posted 9 years ago on Tuesday February 7, 2012 | Permalink
  7. is there anyway to stop duplicate ip address

    thanks

    will

    Posted 9 years ago on Friday February 24, 2012 | Permalink
  8. @glasgoweb see if this user's solution works for you:

    http://www.gravityhelp.com/forums/topic/httpaffinityinnovationscompoc-form#post-34182

    Posted 9 years ago on Friday February 24, 2012 | Permalink
  9. great thanks

    this will really help us, we are getting lots of fake submissions

    Posted 9 years ago on Friday February 24, 2012 | Permalink