Hooks
Actions
Learn about the different action hooks available within Gravity Forms. Action hooks allow you to perform additional actions when an event takes place.
Filters
Discover the different filter hooks available within Gravity Forms. You can use filters to modify data to better match your particular needs.
JavaScript
Find explanations of the various JavaScript hooks used by Gravity Forms and its add-ons.
Deprecated
Here you will find a listing of the action hooks in Gravity Forms which have been deprecated.
Articles
gform_paypal_invoice
This filter allows the invoice number, sent to PayPal for the PayPal Standard Add-on, to be changed.
gform_paypal_ipn_{transaction_type}
This filter allows actions to be performed for a specific IPN transaction type.
gform_paypal_ipn_url
This filter allows the PayPal IPN URL to which data is being posted to be modified.
gform_paypal_post_ipn
This hook is fired after a PayPal IPN response has been processed.
gform_paypal_pre_ipn
This filter is used to cancel to IPN processing.
gform_paypal_query
Use this filter to modify the query string that will be sent to PayPal.
gform_paypal_request
Use this filter to modify the URL string that will be sent to PayPal.
gform_paypal_return_url
Use this filter to modify the return URL, which is the URL that users will be sent to after completing the payment on PayPal’s site.
gform_paypal_return_url_port
This filter allow the port to be changed for the return_url that is sent to PayPal.
gform_paypal_sslverify
This filter allows the sslverify setting to be modified before sending requests to PayPal.