Redirect members after login to 'dashboard' page slug or custom page as defined by Advanced Custom Fields.

coursecats_pmpro_login_redirect_url.php

<?php
/*
 * Redirect members after login to 'dashboard' page slug or custom page as defined by ACF.
 */
function coursecats_pmpro_login_redirect_url( $redirect_to, $request, $user ) {

	// If logged in and a member, redirect them.
	if ( ! empty( $user->ID ) && function_exists( 'pmpro_hasMembershipLevel' ) && pmpro_hasMembershipLevel( NULL, $user->ID ) ) {
		
		$pmp_login_redirect_permalink = "dashboard";

		if ( function_exists( 'get_field' ) && get_field( 'pmp_login_redirect_permalink','options' ) ) {
			$pmp_login_redirect_permalink = get_field( 'pmp_login_redirect_permalink','options' );
		}
		
		$redirect_to = $pmp_login_redirect_permalink;
	}
	return $redirect_to;
}
add_filter( 'pmpro_login_redirect_url', 'coursecats_pmpro_login_redirect_url', 10, 3 );