Filter examples for Caldera Forms Stripe https://calderaforms.com/downloads/caldera-forms-stripe-add-on/ https://calderaforms.com/doc/controlling-stripe-charge-data/

cf-stripe-change-charge-amount.php

<?php
/**
* Change Caldera Forms Stripe Payment Amount
*/
add_filter( 'cf_stripe_charge_args', function( $args, $config, $form ){
  //change charge amounts to $10. Amount is in cents.
  $args[ 'amount' ] = 1000;
  return $args;
}, 10, 4 );

cf-stripe-change-charge-email.php

<?php
/**
* Change Caldera Forms Stripe Recipt email
*/
add_filter( 'cf_stripe_charge_args', function( $args, $config, $form ){
  //change email
  $args[ 'receipt_email' ] = 'hiroy@calderawp.com';
  return $args;
,}, 10, 3 );

cf_stripe_recurring_args.php

<?php
/**
* Change Caldera Forms Stripe Payment Plan
*/
add_filter( 'cf_stripe_recurring_args', function( $args, $config, $form ){
  //change plan. Plan MUST exist
  $args[ 'plan' ] = 'fancy-plan';
  return $args;
});