Redirect administrators and membership manangers to the WP Admin Dashboard and other users to the membership account page on login.

pmpro-login-redirect-admin-and-users.php

<?php
/**
 * Redirect Administrators and Membership Managers to WP Admin,
 * redirect other users to the account page after login.
 *
 * 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_pmpro_login_redirect_admin_and_users( $redirect_to, $request, $user ) {

	// If you'd like to honor previously set redirects, uncomment this section.
	/*
	if ( ! empty( $redirect_to ) ) {
		return $redirect_to;
	}
	*/

	if ( ! is_wp_error( $user ) ) {
		$roles = $user->roles;
		if ( in_array( 'administrator', $roles, true ) || in_array( 'membership_manager', $roles, true ) ) {
			$redirect_to = admin_url();
		} else {
			if ( function_exists( 'pmpro_url' ) ) {
				$redirect_to = pmpro_url( 'account' );
			} else {
				$redirect_to = home_url();
			}
		}
	}

	return $redirect_to;
}
add_filter( 'login_redirect', 'my_pmpro_login_redirect_admin_and_users', 10, 3 );