diff --git a/includes/multisite.php b/includes/multisite.php
new file mode 100644
index 0000000..45361c7
--- /dev/null
+++ b/includes/multisite.php
@@ -0,0 +1,82 @@
+<?php
+/**
+ * Compatibility file for Multisite installations.
+ */
+
+/**
+ * Get Membership Discounts from the main site settings where possible.
+ * @since TBD
+ */
+function pmprowoo_globals_subsite() {
+	global $pmprowoo_product_levels, $pmprowoo_gift_codes, $pmprowoo_member_discounts, $pmprowoo_discounts_on_subscriptions;
+
+	// Let's only do this in a multisite environment if we're not on the main site.
+	if ( ! is_multisite() || is_main_site() ) {
+		return;
+	}
+
+	// Is PMPro network subsite installed?
+	if ( ! function_exists( 'pmpro_multisite_membership_init' ) ) {
+		return;
+	}
+
+	// Is the WooCommerce integration active?
+	if ( ! function_exists( 'pmprowoo_init' ) ) {
+		return;
+	}
+
+	// Let's make sure these plugins are not network activated.
+	$subsite_only_plugins = array(
+		'pmpro-network-subsite',
+		'pmpro-woocommerce',
+	);
+
+	foreach ( $subsite_only_plugins as $plugin ) {
+		if ( is_plugin_active_for_network( $plugin . '/' . $plugin . '.php' ) ) {
+			return;
+		}
+	}
+	
+	// Get the main site ID.
+	$main_site_id = pmpro_multisite_get_main_site_ID();
+
+	// No main site found, let's bail.
+	if ( empty( $main_site_id ) ) {
+		return;
+	}
+
+	
+
+	// Get all Product Membership Levels
+	if ( empty( $pmprowoo_product_levels ) ) {
+		$pmprowoo_product_levels = get_blog_option( $main_site_id, '_pmprowoo_product_levels' );
+		if ( empty( $pmprowoo_product_levels ) ) {
+			$pmprowoo_product_levels = array();
+		}
+	}
+
+	// Get all Gift Membership Codes
+	if ( empty( $pmprowoo_gift_codes ) ) {
+		$pmprowoo_gift_codes = get_blog_option( $main_site_id, '_pmprowoo_gift_codes' );
+		if ( empty( $pmprowoo_gift_codes ) ) {
+			$pmprowoo_gift_codes = array();
+		}
+	}
+
+	// Get all Membership Discounts
+	if ( empty( $pmprowoo_member_discounts ) ) {
+		$pmprowoo_member_discounts = get_blog_option( $main_site_id, '_pmprowoo_member_discounts' );
+		if ( empty( $pmprowoo_member_discounts ) ) {
+			$pmprowoo_member_discounts = array();
+		}
+	}
+
+	// Apply Discounts to Subscriptions
+	if ( empty( $pmprowoo_discounts_on_subscriptions ) ) {
+		$pmprowoo_discounts_on_subscriptions = get_blog_option( $main_site_id, '_pmprowoo_discounts_on_subscriptions' );
+		if ( empty( $pmprowoo_discounts_on_subscriptions ) ) {
+			$pmprowoo_discounts_on_subscriptions = array();
+		}
+	}
+}
+add_action( 'init', 'pmprowoo_globals_subsite', 20 );
\ No newline at end of file
diff --git a/pmpro-woocommerce.php b/pmpro-woocommerce.php
index 835da36..c26cbca 100644
--- a/pmpro-woocommerce.php
+++ b/pmpro-woocommerce.php
@@ -57,6 +57,11 @@ function pmprowoo_init() {
 		require_once( dirname( __FILE__ ) . '/includes/pmpro-gift-levels.php' );
 	}
 
+	// Load multisite compatibility if running on a multisite.
+	if ( is_multisite() ) {
+		require_once( dirname( __FILE__ ) . '/includes/multisite.php' );
+	}
+
 	// If MMPU is active, allow for multiple membership products in your cart
 	if ( defined( 'PMPROMMPU_VER') ) {
 		remove_filter( 'woocommerce_is_purchasable', 'pmprowoo_is_purchasable', 10, 2 );
@@ -1019,4 +1024,4 @@ function pmprowoo_compatible_for_hpos() {
 		\Automattic\WooCommerce\Utilities\FeaturesUtil::declare_compatibility( 'custom_order_tables', __FILE__, true );
 	}
 }
-add_action( 'before_woocommerce_init', 'pmprowoo_compatible_for_hpos' );
+add_action( 'before_woocommerce_init', 'pmprowoo_compatible_for_hpos' );
\ No newline at end of file