Title: Custom Validation on Submit
Last modified: January 12, 2021

---

# Custom Validation on Submit

 *  Resolved [twig](https://wordpress.org/support/users/stripytiger/)
 * (@stripytiger)
 * [5 years, 4 months ago](https://wordpress.org/support/topic/custom-validation-on-submit/)
 * Hi. I am wanting to use Forminator to collect some data. I am collecting name,
   email and a membership number.
 * When the user presses submit, I would like to catch the data entered, check the
   membership is valid, and if not cancel the submission. Is there a filter to do
   this? I have looked and cannot see anything.
 * Many thanks

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Thread Starter [twig](https://wordpress.org/support/users/stripytiger/)
 * (@stripytiger)
 * [5 years, 4 months ago](https://wordpress.org/support/topic/custom-validation-on-submit/#post-13894580)
 * I have looked at the forminator_custom_form_submit_before_set_fields action, 
   and if I could cancel the submit at this point if the membership number is invalid,
   that would be great. Thank you
 *  [Kris – WPMU DEV Support](https://wordpress.org/support/users/wpmudevsupport13/)
 * (@wpmudevsupport13)
 * [5 years, 4 months ago](https://wordpress.org/support/topic/custom-validation-on-submit/#post-13897797)
 * Hi [@stripytiger](https://wordpress.org/support/users/stripytiger/)
 * I hope you are doing good today.
 * I pinged our Formiantor Team to review your query. We will post an update here
   as soon as more information is available.
 * Kind Regards,
    Kris
 *  Plugin Support [Amin – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support2/)
 * (@wpmudev-support2)
 * [5 years, 4 months ago](https://wordpress.org/support/topic/custom-validation-on-submit/#post-13947852)
 * Hello [@stripytiger](https://wordpress.org/support/users/stripytiger/) ,
 * I’m sorry for the delay on our end. Our developer suggested using `forminator_custom_form_submit_errors`.
   With it, you can check submitted fields there and return a custom error message
   if fields data are not valid.
 * Let us know if that helps.
 * kind regards,
    Kasia
 *  Thread Starter [twig](https://wordpress.org/support/users/stripytiger/)
 * (@stripytiger)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/custom-validation-on-submit/#post-14023876)
 * Hi. Many thanks for this. I have tried it but it does not work as required – 
   it may be me doing something wrong.
 * I have added an action in my plugin class like this
 * `add_filter("forminator_custom_form_submit_errors", array($this,"ForminatorPreSubmit"),
   10,3);`
 * Then I have this.
 *     ```
        function ForminatorPreSubmit($submit_errors, $form_id, $field_data_array)
           {
               /** Do form_id check and any validation code here **/
   
               $submit_errors[] = "Stripy Tiger has detected an error";                    
               return $submit_errors;
           }
       ```
   
 * This does stop the form submission, but the error displayed is
 * > Error: Your form is not valid, please fix the errors!
 * And the form is then locked – so no changes can be made.
 * Many thanks for helping me.
 *  Plugin Support [Nithin – WPMU DEV Support](https://wordpress.org/support/users/wpmudevsupport11/)
 * (@wpmudevsupport11)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/custom-validation-on-submit/#post-14040485)
 * Hi [@stripytiger](https://wordpress.org/support/users/stripytiger/),
 * You can try something like this:
 *     ```
       add_action( 'forminator_custom_form_submit_errors', function( $submit_errors, $form_id, $field_data_array ){
   
       		$submit_errors[]['custom_error'] = __('A new custom error.');
   
       	return $submit_errors;
       }, 10, 3 );
       ```
   
 * You can also check the following snippet as an example too:
    [https://gist.github.com/patrickfreitasdev/12e75dd199799532875b319871904bf1](https://gist.github.com/patrickfreitasdev/12e75dd199799532875b319871904bf1)
 * Kind Regards,
    Nithin

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Custom Validation on Submit’ is closed to new replies.

 * ![](https://ps.w.org/forminator/assets/icon-256x256.gif?rev=3443182)
 * [Forminator Forms – Contact Form, Payment Form & Custom Form Builder](https://wordpress.org/plugins/forminator/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/forminator/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/forminator/)
 * [Active Topics](https://wordpress.org/support/plugin/forminator/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/forminator/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/forminator/reviews/)

 * 5 replies
 * 4 participants
 * Last reply from: [Nithin – WPMU DEV Support](https://wordpress.org/support/users/wpmudevsupport11/)
 * Last activity: [5 years, 3 months ago](https://wordpress.org/support/topic/custom-validation-on-submit/#post-14040485)
 * Status: resolved