Adjust the number of member records sent to Zapier from Paid Memberships Pro.

pmpro-trigger-recent-members-limit.php

<?php
/**
 * Adjust the number of records sent within a single Zapier trigger for Paid Memberships Pro.
 * Default is 1 per run.
 * To add this code to your WordPress site, please follow this guide - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
 function my_pmpro_trigger_recent_members_limit( $limit ) {
  return 20;
 }
 add_filter( 'pmpro_trigger_recent_members_limit', 'my_pmpro_trigger_recent_members_limit', 10, 1 );