Using Gravity Forms ‘gform_{$SHORT_SLUG}_error’ PHP action

The gform_{$SHORT_SLUG}_error action in Gravity Forms is used to handle errors that occur when processing feeds in various Gravity Forms add-ons. It is typically used to perform additional actions when an error occurs, such as sending a notification or logging the error.


To use the gform_{$SHORT_SLUG}_error action, you add it to your theme’s functions.php file. Here’s how you would use it for the Mailchimp add-on:

add_action( 'gform_mailchimp_error', 'your_function_name', 10, 4 );

You can also target specific form by appending the form id to the hook name, like so:

add_action( 'gform_mailchimp_error_10', 'your_function_name', 10, 4 );

Remember to replace ‘your_function_name’ with the name of your custom function.


  • $feed (Feed Object): The feed currently being processed.
  • $entry (Entry Object): The entry currently being processed.
  • $form (Form Object): The form currently being processed.
  • $error (string): The error message.

More Information

See Gravity Forms Docs: gform_{$SHORT_SLUG}_error

The hook is located in GFFeedAddOn::add_feed_error() in includes/addon/class-gf-feed-addon.php. This hook was first implemented in Gravity Forms


Mailchimp API Issue

In this example, we use the gform_mailchimp_error action to trigger a notification if the Mailchimp API could not be initialized.

add_action( 'gform_mailchimp_error', 'send_mailchimp_error_email', 10, 4 );
function send_mailchimp_error_email( $feed, $entry, $form, $error_message ) {
    // Send notifications
    GFAPI::send_notifications( $form, $entry, 'mailchimp_api_issue' );

The ‘mailchimp_api_issue’ notification event is added via the gform_notification_events filter.

Agile CRM Error

Here’s how you might handle errors for the Agile CRM add-on:

add_action( 'gform_agilecrm_error', 'send_agilecrm_error_email', 10, 4 );
function send_agilecrm_error_email( $feed, $entry, $form, $error_message ) {
    // Send notifications
    GFAPI::send_notifications( $form, $entry, 'agilecrm_api_issue' );

In this case, ‘agilecrm_api_issue’ is the notification event added via the gform_notification_events filter.

Form-Specific Error Handling

You can also target a specific form. In the following example, we’re handling errors for form 10 of the Mailchimp add-on:

add_action( 'gform_mailchimp_error_10', 'handle_form10_errors', 10, 4 );
function handle_form10_errors( $feed, $entry, $form, $error_message ) {
    // Custom code here

Custom Error Message

Suppose you want to customize the error message shown to the user. You can do it like this:

add_action( 'gform_mailchimp_error', 'custom_error_message', 10, 4 );
function custom_error_message( $feed, $entry, $form, $error_message ) {
    // Custom error message
    $error_message = "There was a problem processing your request. Please try again later.";
    return $error_message;

Logging Errors

Finally, you might want to log errors for further investigation. Here’s how you might do that:

add_action( 'gform_mailchimp_error', 'log_mailchimp_errors', 10, 4 );
function log_mailchimp_errors( $feed, $entry, $form, $error_message ) {
    // Log error
    error_log("Error processing Mailchimp feed: $error_message");

In this case, the error message will be written to your PHP error log. Be sure to replace ‘mailchimp’ with the appropriate add-on slug for your use case.