Redirect BuddyBoss/BuddyPress directory and profile pages to PMPro Member Directory Directory and Profile pages.

my_buddypress_directory_and_profiles_redirect.php

<?php
/**
 * Redirect BuddyBoss/BuddyPress directory and profile pages to PMPro Member Directory
 * Directory and Profile pages.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function my_buddypress_directory_and_profiles_redirect() {
	global $pmpro_pages;

	// Bail if PMPro or the PMPro Member Directory Add On aren't active.
	if ( empty( $pmpro_pages ) || ! defined( 'PMPRO_MEMBER_DIRECTORY_VERSION' ) ) {
		return;
	}

	// If this is the BuddyPress/BuddyBoss directory page.
	if ( bp_is_members_directory() ) {
		// Set redirect destination to the PMPro Member Directory page if it's set.
		if ( ! empty( $pmpro_pages['directory'] ) ) {
			$redirect_url = get_permalink( $pmpro_pages['directory'] );
		}
	} elseif ( bp_is_user_profile() ) { // If this is a BuddyPress/BuddyBoss profile page.
		// Get profile user ID.
		$profile_user_id = bp_displayed_user_id();

		// Bail if the user is viewing their own BuddyPress profile page.
		if ( $profile_user_id === bp_loggedin_user_id() ) {
			return;
		}

		// If the Member Directory Profile page is set.
		if ( ! empty( $pmpro_pages['profile'] ) ) {
			// Get the user's ID.
			$profile_user = get_user_by( 'ID', $profile_user_id );
			// Set redirect destination to the PMPro profile URL if available.
			$redirect_url = pmpromd_build_profile_url( $profile_user );
		}
	} else {
		return;
	}

	// Redirect if a destination URL was set.
	if ( ! empty( $redirect_url ) ) {
		wp_redirect( $redirect_url );
		exit;
	}
}
add_action( 'bp_template_redirect', 'my_buddypress_directory_and_profiles_redirect' );