Hide payment option for Wholesale Customers For WooCommerce Plugin.

hide-payment-option-wcs-for-woo.php

<?php
/**
 * Hide payment gateways for wholesale customers.
 * Add this code to your site via a custom plugin or the Code Snippets Plugin.
 * Adjust line 18 with payment gateway ID's you wish to hide from wholesale customers.
 * Reference: https://yoohooplugins.com/woocommerce-wholesale-customers-payment-gateway/
 */

function yoohoo_wcs_hide_gateways( $available_gateways ) {
	global $current_user;

	$is_wholesale = get_user_meta( $current_user->ID, 'wcs_wholesale_customer', true );

	if ( ! $is_wholesale ) {
		return $available_gateways;
	}

	$hide_payments = array( 'cod', 'bacs' ); //Add payment gateway ID's/slugs here.

	foreach( $hide_payments as $gateway ) {
		if ( isset( $available_gateways[$gateway] ) ) {
			unset( $available_gateways[$gateway] );
		}
	}
	return $available_gateways;
 }
 add_filter( 'woocommerce_available_payment_gateways', 'yoohoo_wcs_hide_gateways' );